US20040082742A1 - N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds, their corresponding n-oxides and controlled radical polymerization therewith - Google Patents
N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds, their corresponding n-oxides and controlled radical polymerization therewith Download PDFInfo
- Publication number
- US20040082742A1 US20040082742A1 US10/450,229 US45022903A US2004082742A1 US 20040082742 A1 US20040082742 A1 US 20040082742A1 US 45022903 A US45022903 A US 45022903A US 2004082742 A1 US2004082742 A1 US 2004082742A1
- Authority
- US
- United States
- Prior art keywords
- diethyl
- aza
- dioxa
- spiro
- phenyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- RFQDSZDPZHCIHR-UHFFFAOYSA-N CCCCC1(CC)COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(C)(C)C2)OC1 Chemical compound CCCCC1(CC)COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(C)(C)C2)OC1 RFQDSZDPZHCIHR-UHFFFAOYSA-N 0.000 description 1
- KIMAARRDWLZXCD-UHFFFAOYSA-N CCCCC1(CC)COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(CC)(CC)C2)OC1 Chemical compound CCCCC1(CC)COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(CC)(CC)C2)OC1 KIMAARRDWLZXCD-UHFFFAOYSA-N 0.000 description 1
- BKLBNDWHAVZZIA-UHFFFAOYSA-N CCCCC1(CC)COC2(CC(C)(C)N([O])C(CC)(CC)C2)OC1 Chemical compound CCCCC1(CC)COC2(CC(C)(C)N([O])C(CC)(CC)C2)OC1 BKLBNDWHAVZZIA-UHFFFAOYSA-N 0.000 description 1
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- BHCDSLMFTWYOSV-UHFFFAOYSA-N CCCCC1COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(CC)(CC)C2)O1 Chemical compound CCCCC1COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(CC)(CC)C2)O1 BHCDSLMFTWYOSV-UHFFFAOYSA-N 0.000 description 1
- DIXXJAAPLAPGSN-UHFFFAOYSA-N CCCCC1COC2(CC(C)(C)N([O])C(CC)(CC)C2)O1 Chemical compound CCCCC1COC2(CC(C)(C)N([O])C(CC)(CC)C2)O1 DIXXJAAPLAPGSN-UHFFFAOYSA-N 0.000 description 1
- WMMHEEMTDJDAOG-UHFFFAOYSA-N CCCCC1COC2(CC(C)(CC)N(OC(C)C3=CC=CC=C3)C(C)(CC)C2C)O1 Chemical compound CCCCC1COC2(CC(C)(CC)N(OC(C)C3=CC=CC=C3)C(C)(CC)C2C)O1 WMMHEEMTDJDAOG-UHFFFAOYSA-N 0.000 description 1
- BIIMXPOVLFJUCC-UHFFFAOYSA-N CCCCC1COC2(CC(C)(CC)N([O])C(C)(CC)C2C)O1 Chemical compound CCCCC1COC2(CC(C)(CC)N([O])C(C)(CC)C2C)O1 BIIMXPOVLFJUCC-UHFFFAOYSA-N 0.000 description 1
- IBUOWTXUXJVNIZ-UHFFFAOYSA-N CCCCCCC1COC2(CC(C)(C)N([O])C(CC)(CC)C2)O1 Chemical compound CCCCCCC1COC2(CC(C)(C)N([O])C(CC)(CC)C2)O1 IBUOWTXUXJVNIZ-UHFFFAOYSA-N 0.000 description 1
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- UPZVTRAEYCUMRI-UHFFFAOYSA-N CCCCCCCCCCC1COC2(CC(C)(C)N([O])C(CC)(CC)C2)O1 Chemical compound CCCCCCCCCCC1COC2(CC(C)(C)N([O])C(CC)(CC)C2)O1 UPZVTRAEYCUMRI-UHFFFAOYSA-N 0.000 description 1
- SHTMZGDTURHHOV-UHFFFAOYSA-N CCCCCCCCCCC1COC2(CC(C)(CC)N(OC(C)C3=CC=CC=C3)C(C)(CC)C2C)O1 Chemical compound CCCCCCCCCCC1COC2(CC(C)(CC)N(OC(C)C3=CC=CC=C3)C(C)(CC)C2C)O1 SHTMZGDTURHHOV-UHFFFAOYSA-N 0.000 description 1
- HZCMZWUJZDEBER-UHFFFAOYSA-N CCCCCCCCCCC1COC2(CC(C)(CC)N([O])C(C)(CC)C2C)O1 Chemical compound CCCCCCCCCCC1COC2(CC(C)(CC)N([O])C(C)(CC)C2C)O1 HZCMZWUJZDEBER-UHFFFAOYSA-N 0.000 description 1
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- UPSWDTNWUOYGHO-UHFFFAOYSA-N CCCCCCCCOC1(OCCCCCCCC)CC(C)(C)N([O])C(CC)(CC)C1 Chemical compound CCCCCCCCOC1(OCCCCCCCC)CC(C)(C)N([O])C(CC)(CC)C1 UPSWDTNWUOYGHO-UHFFFAOYSA-N 0.000 description 1
- GSXJCNRVQGNJPG-UHFFFAOYSA-N CCCCCCCCOC1(OCCCCCCCC)CC(C)(CC)N(OC(C)C2=CC=CC=C2)C(C)(CC)C1C Chemical compound CCCCCCCCOC1(OCCCCCCCC)CC(C)(CC)N(OC(C)C2=CC=CC=C2)C(C)(CC)C1C GSXJCNRVQGNJPG-UHFFFAOYSA-N 0.000 description 1
- PUXPFTMOFOLYFA-UHFFFAOYSA-N CCCCCCCCOC1(OCCCCCCCC)CC(C)(CC)N([O])C(C)(CC)C1C Chemical compound CCCCCCCCOC1(OCCCCCCCC)CC(C)(CC)N([O])C(C)(CC)C1C PUXPFTMOFOLYFA-UHFFFAOYSA-N 0.000 description 1
- OYNYUJPEIKQEBB-UHFFFAOYSA-N CCCCOC1(OCCCC)CC(C)(C)N(OC(C)C2=CC=CC=C2)C(C)(C)C1 Chemical compound CCCCOC1(OCCCC)CC(C)(C)N(OC(C)C2=CC=CC=C2)C(C)(C)C1 OYNYUJPEIKQEBB-UHFFFAOYSA-N 0.000 description 1
- HXOYPSGMAURXQR-UHFFFAOYSA-N CCCCOC1(OCCCC)CC(C)(C)N(OC(C)C2=CC=CC=C2)C(CC)(CC)C1 Chemical compound CCCCOC1(OCCCC)CC(C)(C)N(OC(C)C2=CC=CC=C2)C(CC)(CC)C1 HXOYPSGMAURXQR-UHFFFAOYSA-N 0.000 description 1
- UDWMYZXGRPHMFN-UHFFFAOYSA-N CCCCOC1(OCCCC)CC(C)(C)N([O])C(CC)(CC)C1 Chemical compound CCCCOC1(OCCCC)CC(C)(C)N([O])C(CC)(CC)C1 UDWMYZXGRPHMFN-UHFFFAOYSA-N 0.000 description 1
- MBTOKXLHGNEIQT-UHFFFAOYSA-N CCCOC1(OCCC)CC(C)(C)N(OC(C)C2=CC=CC=C2)C(C)(C)C1 Chemical compound CCCOC1(OCCC)CC(C)(C)N(OC(C)C2=CC=CC=C2)C(C)(C)C1 MBTOKXLHGNEIQT-UHFFFAOYSA-N 0.000 description 1
- GCZDXSXFMTVXBL-UHFFFAOYSA-N CCCOC1(OCCC)CC(C)(C)N(OC(C)C2=CC=CC=C2)C(CC)(CC)C1 Chemical compound CCCOC1(OCCC)CC(C)(C)N(OC(C)C2=CC=CC=C2)C(CC)(CC)C1 GCZDXSXFMTVXBL-UHFFFAOYSA-N 0.000 description 1
- RCAJNHKDWIYDEW-UHFFFAOYSA-N CCCOC1(OCCC)CC(C)(C)N([O])C(CC)(CC)C1 Chemical compound CCCOC1(OCCC)CC(C)(C)N([O])C(CC)(CC)C1 RCAJNHKDWIYDEW-UHFFFAOYSA-N 0.000 description 1
- OSDMRBLOPLDCJE-UHFFFAOYSA-N CCCOC1(OCCC)CC(C)(CC)N(OC(C)C2=CC=CC=C2)C(C)(CC)C1C Chemical compound CCCOC1(OCCC)CC(C)(CC)N(OC(C)C2=CC=CC=C2)C(C)(CC)C1C OSDMRBLOPLDCJE-UHFFFAOYSA-N 0.000 description 1
- PZTDGNTWHVMCET-UHFFFAOYSA-N CCCOC1(OCCC)CC(C)(CC)N([O])C(C)(CC)C1C Chemical compound CCCOC1(OCCC)CC(C)(CC)N([O])C(C)(CC)C1C PZTDGNTWHVMCET-UHFFFAOYSA-N 0.000 description 1
- LDQHCSNPJRYDQX-UHFFFAOYSA-N CCOC(=O)C1(C(=O)OCC)COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(C)(C)C2)OC1 Chemical compound CCOC(=O)C1(C(=O)OCC)COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(C)(C)C2)OC1 LDQHCSNPJRYDQX-UHFFFAOYSA-N 0.000 description 1
- VJDWUANEFHBGAY-UHFFFAOYSA-N CCOC(=O)C1(C(=O)OCC)COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(CC)(CC)C2)OC1 Chemical compound CCOC(=O)C1(C(=O)OCC)COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(CC)(CC)C2)OC1 VJDWUANEFHBGAY-UHFFFAOYSA-N 0.000 description 1
- HEFNFSXPVRXDSW-UHFFFAOYSA-N CCOC(=O)C1(C(=O)OCC)COC2(CC(C)(C)N([O])C(CC)(CC)C2)OC1 Chemical compound CCOC(=O)C1(C(=O)OCC)COC2(CC(C)(C)N([O])C(CC)(CC)C2)OC1 HEFNFSXPVRXDSW-UHFFFAOYSA-N 0.000 description 1
- PNSBGLIVPAUWOM-UHFFFAOYSA-N CCOC(=O)C1(C(=O)OCC)COC2(CC(C)(CC)N(OC(C)C3=CC=CC=C3)C(C)(CC)C2C)OC1 Chemical compound CCOC(=O)C1(C(=O)OCC)COC2(CC(C)(CC)N(OC(C)C3=CC=CC=C3)C(C)(CC)C2C)OC1 PNSBGLIVPAUWOM-UHFFFAOYSA-N 0.000 description 1
- IXGZRUUZGMMDHD-UHFFFAOYSA-N CCOC(=O)C1(C(=O)OCC)COC2(CC(C)(CC)N([O])C(C)(CC)C2C)OC1 Chemical compound CCOC(=O)C1(C(=O)OCC)COC2(CC(C)(CC)N([O])C(C)(CC)C2C)OC1 IXGZRUUZGMMDHD-UHFFFAOYSA-N 0.000 description 1
- XKQKGFSJIRKWPN-UHFFFAOYSA-N CCOC1(OCC)CC(C)(C)N(OC(C)C2=CC=CC=C2)C(C)(C)C1 Chemical compound CCOC1(OCC)CC(C)(C)N(OC(C)C2=CC=CC=C2)C(C)(C)C1 XKQKGFSJIRKWPN-UHFFFAOYSA-N 0.000 description 1
- SPCFITJRACXDAH-UHFFFAOYSA-N CCOC1(OCC)CC(C)(C)N([O])C(CC)(CC)C1 Chemical compound CCOC1(OCC)CC(C)(C)N([O])C(CC)(CC)C1 SPCFITJRACXDAH-UHFFFAOYSA-N 0.000 description 1
- FXGZNFLAYITGRP-UHFFFAOYSA-N CCOC1(OCC)CC(C)(CC)N([O])C(C)(CC)C1C Chemical compound CCOC1(OCC)CC(C)(CC)N([O])C(C)(CC)C1C FXGZNFLAYITGRP-UHFFFAOYSA-N 0.000 description 1
- PBKDRKXKNALAEZ-UHFFFAOYSA-N COC(=O)C1(C)COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(C)(C)C2)OC1 Chemical compound COC(=O)C1(C)COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(C)(C)C2)OC1 PBKDRKXKNALAEZ-UHFFFAOYSA-N 0.000 description 1
- PCANQICERUJQFO-UHFFFAOYSA-N COC(=O)C1OC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(C)(C)C2)OC1C(=O)OC Chemical compound COC(=O)C1OC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(C)(C)C2)OC1C(=O)OC PCANQICERUJQFO-UHFFFAOYSA-N 0.000 description 1
- GDLLBKQEVVZENO-UHFFFAOYSA-N COC1(OC)CC(C)(C)N(OC(C)C2=CC=CC=C2)C(C)(C)C1 Chemical compound COC1(OC)CC(C)(C)N(OC(C)C2=CC=CC=C2)C(C)(C)C1 GDLLBKQEVVZENO-UHFFFAOYSA-N 0.000 description 1
- LEEANUDEDHYDTG-UHFFFAOYSA-N COCC(C)OC Chemical compound COCC(C)OC LEEANUDEDHYDTG-UHFFFAOYSA-N 0.000 description 1
- HSIQNLDMIJVRIO-UHFFFAOYSA-N COCC1(C)COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(C)(C)C2)OC1 Chemical compound COCC1(C)COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(C)(C)C2)OC1 HSIQNLDMIJVRIO-UHFFFAOYSA-N 0.000 description 1
- MFMJMNSLRAKAMP-UHFFFAOYSA-N COCC1COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(C)(C)C2)O1 Chemical compound COCC1COC2(CC(C)(C)N(OC(C)C3=CC=CC=C3)C(C)(C)C2)O1 MFMJMNSLRAKAMP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
- C07D211/92—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with a hetero atom directly attached to the ring nitrogen atom
- C07D211/94—Oxygen atom, e.g. piperidine N-oxide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
- C07D491/10—Spiro-condensed systems
- C07D491/113—Spiro-condensed systems with two or more oxygen atoms as ring hetero atoms in the oxygen-containing ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/22—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains four or more hetero rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D519/00—Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
Definitions
- the present invention relates to selected 1-alkoxy-2,2,6,6 tetramethyl piperidine, 1-alkoxy-2,2 diethyl-6,6 dimethyl piperidine and 1-alkoxy-2,6 diethyl-2,3,6 dimethyl piperidine derivatives which are substituted in the 4 position by two oxygen atoms forming an open chain or cyclic ketal structure, a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) said piperidine derivatives.
- Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, and the use of 1-alkoxy-2,2,6,6 tetramethyl piperidine, 1-alkoxy-2,2 diethyl-6,6 dimethyl piperidine and 1-alkoxy-2,6 diethyl-2,3,6 dimethyl piperidine derivatives which are substituted in the 4 position by two oxygen atoms forming an open chain or cyclic ketal structure for controlled polymerization.
- the intermediate N-oxyl derivatives, a composition of the N-oxyl derivatives with ethylenically unsaturated monomers and a free radical initiator, as well as a process for polymerization are also subjects of the present invention.
- the compounds of the present invention provide polymeric resin products having low polydispersity.
- the polymerization process proceeds with good monomer to polymer conversion efficiency.
- this invention relates to stable free radical-mediated polymerization processes which provide homopolymers, random copolymers, block copolymers, multiblock copolymers, graft copolymers and the like, at enhanced rates of polymerization and enhanced monomer to polymer conversions.
- U.S. Pat. No. 4,581,429 to Solomon et al. discloses a free radical polymerization process which controls the growth of polymer chains to produce short chain or oligomeric homopolymers and copolymers, including block and graft copolymers.
- the process employs an initiator having the formula (in part) R′R′′N—O—X, where X is a free radical speci s capable of polymerizing unsaturated monomers.
- the reactions typically have low conversion rates. Specifically mentioned radical R′R′′N—O.
- EP-A-0 574 666 describes some novel 1-oxyl-2,2,6,6 tetramethylpiperidin compounds and their preparation, which have an open chain or cyclic ketal structure in the 4 position.
- U.S. Pat. No. 4,105,626 discloses also nitroxides and their preparation which are derived from 2,6-diethyl-2,6-dimethyl piperidine which have a ketal structure in 4 position.
- GB 2335190 firstly discloses polymerization regulators/initiators on the basis of 2,2,6,6-tetraalkylpiperidine, wherein the alkyl groups have from 1 to 6 carbon atoms and at least one group is different from methyl. No specific compound having a ketal structure in the 4-position is mentioned.
- the ketal structure in 4 position ensures high thermal stability which is important for storag, particularly at elevated temperatures.
- the ketal structure is thermally significantly more stable compared to the corresponding 4-oxo compound.
- the compounds exhibit an unchanged initiating/regulating activity even after storage at elevated temperatures as for example used in conventional stability tests.
- One subject of the present invention is a polymerizable composition, comprising
- n 1 or 2;
- X is selected from the group consisting of —CH 2 -phenyl, CH 3 CH-phenyl, (CH 3 ) 2 C-phenyl, (C 5 -C 6 cycloalkyl) 2 CCN, (CH 3 ) 2 CCN, —CH 2 CH ⁇ CH 2 , CH 3 CH—CH ⁇ CH 2 , 3-cyclohexenyl, 3-cyclo-pentenyl, (C 1 -C 4 alkyl)CR 20 —C(O)-phenyl, (C 1 -C 4 )alkyl-CR 20 —C(O)—(C 1 -C 4 )alkoxy, (C 1 -C 4 )alkyl-CR 20 —C(O)—(C 1 -C 4 )alkyl, (C 1 -C 4 )alkyl-CR 20 —C(O)—N-di(C 1 -C 4 )alkyl, (C 1 -C 4 )alkyl-
- R 20 is hydrogen or (C 1 -C 4 )alkyl
- R 21 is hydrogen, C 1 -C 4 alkyl or phenyl
- R 22 is C 1 -C 12 alkyl which is unsubstituted or substituted by OH or N(R 20 )(R 21 ) or which is interrupted by O or NR 20 ;
- Y and Y′ are independently C 1 -C 12 alkyl, C 3 -C 12 alkenyl, C 3 -C 12 alkinyl, C 5 -C 8 cycloalkyl, phenyl, naphthyl, C 7 -C 9 phenylalkyl; or
- Y and Y′ together form one of the bivalent groups —C(R 1 )(R 2 )—CH(R 3 )—, CH(R 1 )—CH 2 —C(R 2 )(R 3 )—, —CH(R 2 )—CH 2 —C(R 1 )(R 3 )—, —CH 2 —C(R 1 )(R 2 )—CH(R 3 )—, o-phenylene, 1,2-cyclohexyliden,
- R 1 is hydrogen, C 1 -C 12 alkyl, COOH, COO—(C 1 -C 12 )alkyl or CH 2 OR 4 ;
- R 2 and R 3 are independently hydrogen, methyl ethyl, COOH or COO—(C 1 -C 12 )alkyl;
- R 4 is hydrogen, C 1 -C 12 alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms;
- Q is a bisacyl residue which is derived from a C 2 -C 12 dicarboxylic acid or C 1 -C 12 alkylene;
- Z is C 1 -C 12 alkylene.
- Preferred is a polymerizable composition wherein the compound is of formula Ia or IIa.
- C 1 -C 12 alkyl can be linear or branched. Examples are methyl, ethyl, propyl, isopropyl, butyl, 2-butyl, isobutyl, t-butyl, pentyl, 2-pentyl, hexyl, heptyl, octyl, 2-ethylhexyl, t-octyl, nonyl, decyl, undecyl or dodecyl.
- Alkenyl having from 3 to 12 carbon atoms is a branched or unbranched radical, for example propenyl, 2-butenyl, 3-butenyl, isobutenyl, n-2,4-pentadienyl, 3-methyl-2-butenyl, n-2-octenyl, n-2-dodecenyl, isododecenyl.
- Alkinyl having from 3 to 25 carbon atoms is a branched or unbranched radical, for example propinyl (—CH 2 —C ⁇ CH ), 2-butinyl, 3-butinyl, n-2-octinyl or n-2-dodecinyl.
- alkoxy examples are methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, pentoxy, isopentoxy, hexoxy, heptoxy or octoxy.
- C 7 -C 9 phenylalkyl is for example benzyl, ⁇ -methylbenzyl, ⁇ , ⁇ -dimethylbenzyl or 2-phenylethyl, benzyl is preferred.
- C 1 -C 12 alkylene is a branched or unbranched radical, for example methylene, ethylene, propylene, trimethylene, tetramethylene, pentamethylene, hexamethylene, heptamethylene, octamethylene, decamethylene or dodecamethylene.
- C 5 -C 8 cycloalkyl is for example cyclopentyl, cyclohexyl, cycloheptyl, methylcyclopentyl or cyclooctyl.
- Examples of a monocarboxylic acid having up to 18 carbon atoms are formic acid, acetic acid, propionic acid, the isomers of valeric acid, methyl ethyl acetic acid, trimethyl acetic acid, capronic acid, lauric acid or stearic acid.
- Examples for unsaturated aliphatic acids are acrylic acid, methacrylic acid, crotonic acid, linolic acid and oleic acid.
- Typical examples of cycloaliphatic carboxylic acids are cyclohexane carboxylic acid or cyclopentane carboxylic acid.
- aromatic carboxylic acids are benzoic acid, salicylic acid or cinnamic acid.
- dicarboxylic acids are oxalic acid, malonic acid, succinic acidglutaric acid adipic acid, sebatic acid, fumaric acid, maleic acid, phthalic acid, isophthalic acid, terephthalic acid.
- X is selected from the group consisting of —CH 2 -phenyl, CH 3 CH-phenyl, (CH 3 ) 2 C-phenyl, (C 5 -C 6 cycloalkyl) 2 CCN, (CH 3 ) 2 CCN, 3-cyclohexenyl and the other substituents are as defined above, most preferably X is CH 3 CH-phenyl.
- a polymerizable composition wherein in the compound of formula Ia, IIa or IIIa X is selected from the group consisting of —CH 2 -phenyl, CH 3 CH-phenyl, (CH 3 ) 2 C-phenyl, (C 5 -C 6 cycloalkyl) 2 CCN, (CH 3 ) 2 CCN, 3-cyclohexenyl;
- n 1
- Y and Y′ are independently C 1 -C 12 alkyl, C 3 -C 12 alkenyl, C 3 -C 12 alkinyl, C 5 -C 8 cycloalkyl, phenyl, naphthyl, C 7 -C 9 phenylalkyl; or
- Y and Y′ together form one of the bivalent groups —C(R 1 )(R 2 )—CH(R 3 )—, CH(R 1 )—CH 2 —C(R 2 )(R 3 )—, —CH(R 2 )—CH 2 —C(R 1 )(R 3 )—, —CH 2 —C(R 1 )(R 2 )—CH(R 3 )—, o-phenylene, 1,2-cyclohexyliden, —CH 2 —CH ⁇ CH—CH 2 — or
- R 1 is hydrogen, C 1 -C 12 alkyl, COOH, COO—(C 1 -C 12 )alkyl or CH 2 OR 4 ;
- R 2 and R 3 are independently hydrogen, methyl ethyl, COOH or COO—(C 1 -C 12 )alkyl;
- R 4 is hydrogen, C 1 -C 12 alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms.
- n 1
- Y and Y′ are independently C 1 -C 12 alkyl, C 3 -C 12 alkenyl, phenyl or benzyl; or
- Y and Y′ together form one of the bivalent groups —C(R 1 )(R 2 )—CH(R 3 )—, CH(R 1 )—CH 2 —C(R 2 )(R 3 )—, —CH(R 2 )—CH 2 —C(R 1 )(R 3 )—, —CH 2 —C(R 1 )(R 2 )—CH(R 3 )—, —CH 2 —CH ⁇ CH—CH 2 — or;
- R 1 is hydrogen, C 1 -C 12 alkyl, COO—(C 1 -C 12 )alkyl or CH 2 OR 4 ;
- R 2 and R 3 are independently hydrog n, methyl ethyl, or COO—(C 1 -C 12 )alkyl;
- R 4 is hydrogen, C 1 -C 12 alkyl, benzyl, or a monoval nt acyl residu d rived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 12 carbon atoms.
- the ethylenically unsaturated monomer or oligomer is selected from the group consisting of ethylene, propylene, n-butylene, i-butylene, styrene, substituted styrene, conjugated dienes, acrolein, vinyl acetate, vinylpyrrolidone, vinylimidazole, maleic anhydride, (alkyl)acrylic acidanhydrides, (alkyl)acrylic acid salts, (alkyl)acrylic esters, (meth)acrylonitriles, (alkyl)acrylamides, vinyl halides or vinylidene halides.
- the ethylenically unsaturated monomers are ethylene, propylene, n-butylene, i-butylene, isoprene, 1,3-butadiene, ⁇ -C 5 -C 18 alkene, styrene, ⁇ -methyl styrene, p-methyl styrene or a compound of formula CH 2 ⁇ C(R a )—(C ⁇ Z)—R b , wherein R a is hydrogen or C 1 -C 4 alkyl, R b is NH 2 , O ⁇ (Me + ), glycidyl, unsubstituted C 1 -C 18 alkoxy, C 2 -C 100 alkoxy interrupted by at least one N and/or O atom, or hydroxy-substituted C 1 -C 18 alkoxy, unsubstituted C 1 -C 18 alkylamino, di(C 1 -C 18 alkyl)
- An ⁇ is a anion of a monovalent organic or inorganic acid
- Me is a monovalent metal atom or the ammonium ion.
- Z is oxygen or sulfur.
- R a as C 2 -C 100 alkoxy interrupted by at least one O atom are of formula
- R c is C 1 -C 25 alkyl, phenyl or phenyl substituted by C 1 -C 18 alkyl
- R d is hydrogen or methyl
- v is a number from 1 to 50.
- These monomers are for example derived from non ionic surfactants by acrylation of the corresponding alkoxylated alcohols or phenols.
- the repeating units may be derived from ethylene oxide, propylene oxide or mixtures of both.
- An ⁇ wherein An ⁇ and R a have the meaning as defined above and R e is methyl or benzyl.
- An ⁇ is preferably Cl ⁇ , Br ⁇ or ⁇ O 3 S—CH 3 .
- R a is hydrogen or methyl
- R b is NH 2 , gycidyl, unsubstituted or with hydroxy substituted C 1 -C 4 alkoxy, unsubstituted C 1 -C 4 alkylamino, di(C 1 -C 4 alkyl)amino, hydroxy-substituted C 1 -C 4 alkylamino or hydroxy-substituted di(C 1 -C 4 alkyl)amino
- Z is oxygen.
- Particularly preferred ethylenically unsaturated monomers are styrene, methylacrylate, ethylacrylate, butylacrylate, isobutylacrylate, tert. butylacrylate, hydroxyethylacrylate, hydroxypropylacrylate, dimethylaminoethylacrylate, glycidylacrylates, methyl(meth)acrylate, ethyl(meth)acrylate, butyl(meth)acrylate, hydroxyethyl(meth)acrylate, hydroxypropyl(meth)acrylate, dimethylaminoethyl(meth)acrylate, glycidyl(meth)acrylates, acrylonitrile, acrylamide, methacrylamide or dimethylaminopropyl-methacrylamide.
- the initiator compound is present in an amount of from 0.01 mol-% to 20 mol-%, more preferably in an amount of from 0.01 mol-% to 10 mol-% and most preferred in an amount of from 0.05 mol-% to 10 mol-% based on the monomer or monomer mixture.
- Another subject of the present invention is a process for preparing an oligomer, a cooligomer, a polymer or a copolymer (block or random) by free radical polymerization of at least one ethylenically unsaturated monomer or oligomer, which comprises (co)polymerizing the monomer or monomers/oligomers in the presence of an initiator compound of formula Ia, IIa or IIIa under reaction conditions capable of effecting scission of the O—C bond to form two free radicals, the radical .X being capable of initiating polymerization.
- scission of th O—C bond is eff cted by ultrasonic treatment, heating or exposure to electromagnetic radiation, ranging from ⁇ to microwaves.
- the scission of the O—C bond is effected by heating and takes place at a temperature of between 50° C. and 160° C.
- the process may be carried out in the presence of an organic solvent or in the presence of water or in mixtures of organic solvents and water. Additional cosolvents or surfactants, such as glycols or ammonium salts of fatty acids, may be present. Other suitable cosolvents are described hereinafter.
- Preferred processes use as little solvents as possible.
- the reaction mixture it is preferred to use more than 30% by weight of monomer and initiator, particularly preferably more than 50% and most preferrably more than 80%.
- suitable solvents or mixtures of solvents are typically pure alkanes (hexane, heptane, octane, isooctane), hydrocarbons (benzene, toluene, xylene), halogenated hydrocarbons (chlorobenzene), alkanols (methanol, ethanol, ethylene glycol, ethylene glycol monomethyl ether), esters (ethyl acetate, propyl, butyl or hexyl acetate) and ethers (diethyl ether, dibutyl ether, ethylene glycol dimethyl ether), or mixtures thereof.
- alkanes hexane, heptane, octane, isooctane
- hydrocarbons benzene, toluene, xylene
- chlorobenzene chlorobenzene
- alkanols methanol, ethanol, ethylene glycol, ethylene glycol monomethyl
- the aqueous polymerization reactions can be supplemented with a water-miscible or hydrophilic cosolvent to help ensure that the reaction mixture remains a homogeneous singl phase throughout the monomer conversion.
- a water-miscible or hydrophilic cosolvent Any water-soluble or water-miscible cosolvent may be used, as long as the aqueous solvent medium is effective in providing a solvent system which prevents precipitation or phase separation of the reactants or polymer products until after all polymerization reactions have been completed.
- Exemplary cosolvents useful in the present invention may be selected from the group consisting of aliphatic alcohols, glycols, ethers, glycol ethers, pyrrolidines, N-alkyl pyrrolidinones, N-alkyl pyrrolidones, polyethylene glycols, polypropylene glycols, amides, carboxylic acids and salts thereof, esters, organosulfides, sulfoxides, sulfones, alcohol derivatives, hydroxyether derivatives such as butyl carbitol or cellosolve, amino alcohols, ketones, and the like, as well as derivatives thereof and mixtures thereof.
- the water to cosolvent weight ratio is typically in the range of about 100:0 to about 10:90.
- Block copolymers are, for example, block copolymers of polystyrene and polyacrylate (e.g., poly(styrene-co-acrylate) or poly(styrene-co-acrylate-co-styrene). They are usefull as adhesives or as compatibilizers for polymer blends or as polymer toughening agents. Poly(methylmethacrylate-co-acrylate) diblock copolymers or poly(methylacrylate-co-acrylate-co-methacrylate) triblock copolymers) are useful as dispersing agents for coating systeme, as coating additives (e.g.
- Block copolymers of styrene, (meth)acrylates and/or acrylonitrile are useful for plastics, elastomers and adhesives.
- block copolymers of this invention wherein the blocks alternate between polar monomers and non-polar monomers, are useful in many applications as amphiphilic surfactants or dispersants for preparing highly uniform polymer blends.
- the (co)polymers of the present invention may have a number average molecular weight from 1 000 to 400 000 g/mol, preferably from 2 000 to 250 000 g/mol and, more preferably, from 2 000 to 200 000 g/mol. When produced in bulk, the number average molecular weight may be up to 500 000 (with the same minimum weights as mentioned above).
- the number average molecular weight may be determined by size exclusion chromatography (SEC), gel permeation chromatography (GPC), matrix assisted laser desorption/ionization mass spectrometry (MALDI-MS) or, if the initiator carries a group which can be easily distinguished from the monomer(s), by NMR spectroscopy or other conventional methods.
- SEC size exclusion chromatography
- GPC gel permeation chromatography
- MALDI-MS matrix assisted laser desorption/ionization mass spectrometry
- the polymers or copolymers of the present invention have preferably a polydispersity of from 1.0 to 2, more preferably of from 1.1 to 1.9 and most preferably from 1.1 to 1.8.
- the present invention also encompasses in the synthesis novel block, multi-block, star, gradient, random, hyperbranched and dendritic copolymers, as well as graft or copolymers.
- the polymers prepared by the present invention are useful for following applications: adhesives, det rgents, dispersants, emulsifiers, surfactants, defoamers, adhesion promoters, corrosion inhibitors, viscosity improvers, lubricants, rheology modifi rs, thickeners, crosslinkers, paper treatment, water tr atment, electronic materials, paints, coatings, photography, ink materials, imaging materials, superabsorbants, cosmetics, hair products, preservatives, biocide materials or modifiers for asphalt, leather, textiles, ceramics and wood.
- the present polymerizaton is a “living” polymerization, it can be started and stopped practically at will. Furthermore, the polymer product retains the functional alkoxyamine group allowing a continuation of the polymerization in a living matter.
- a second monomer can then be added to form a second block on the growing polymer chain in a second polymerization step. Therefore it is possible to carry out additional polymerizations with the same or different monomer(s) to prepare multi-block copolymers.
- blocks can be prepared in essentially any order.
- a multi-block copolymer in which a polyacrylonitrile or a poly(meth)acrylate block is prepared first, then a styrene or butadiene block is attached thereto, and so on.
- a plurality of specifically designed polymers and copolymers are accessible by the present invention, such as star and graft (co)polymers as described, inter alia, by C. J. Hawker in Angew. Chemie, 1995, 107, pages 1623-1627, dendrimers as described by K. Matyaszewski et al. in Macrmolecules 1996, Vol 29, No. 12, pages 4167-4171, graft (co)polymers as described by C. J. Hawker et al. in Macromol. Chem. Phys. 198, 155-166(1997), random copolymers as described by C. J. Hawker in Macromolecules 1996, 29, 2686-2688, or diblock and triblock copolymers as described by N. A. Listigovers in Macromolecules 1996, 29, 8992-8993.
- n 1 or 2;
- X is selected from the group consisting of —CH 2 -phenyl, CH 3 CH-phenyl, (CH 3 ) 2 C-phenyl, (C 5 -C 6 cycloalkyl) 2 CCN, 3-cyclohexenyl, 3-cyclopentenyl, (CH 3 ) 2 CCN, —CH 2 CH ⁇ CH 2 , CH 3 CH—CH ⁇ CH 2 (C 1 -C 4 alkyl)CR 20 —C(O)-phenyl, (C 1 -C 4 )alkyl-CR 20 —C(O)—(C 1 -C 4 )alkoxy, (C 1 -C 4 )alkyl-CR 20 —C(O)—(C 1 -C 4 )alkyl, (C 1 -C 4 )alkyl-CR 20 —C(O)—N-di(C 1 -C 4 )alkyl, (C 1 -C 4 )alkyl-CR 20 —C(O
- R 20 is hydrogen or (C 1 -C 4 )alkyl
- R 21 is hydrogen, C 1 -C 4 alkyl or phenyl
- R 22 is C 1 -C 12 alkyl which is unsubstituted or substituted by OH or N(R 20 )(R 21 ) or which is interrupted by O or NR 20 ;
- Y and Y′ are independently C 1 -C 12 alkyl, C 3 -C 12 alkenyl, C 3 -C 12 alkinyl, C 5 -C 8 cycloalkyl, phenyl, naphthyl, C 7 -C 9 phenylalkyl; or
- Y and Y′ together form one of the bivalent groups —C(R 1 )(R 2 )—CH(R 3 )—, CH(R 1 )—CH 2 —C(R 2 )(R 3 )—,
- R 1 is hydrogen, C 1 -C 12 alkyl, COOH, COO—(C 1 -C 12 )alkyl or CH 2 OR 4 ;
- R 2 and R 3 are independently hydrogen, methyl ethyl, COOH or COO—(C 1 -C 12 )alkyl;
- R 4 is hydrogen, C 1 -C 12 alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms;
- Q is a bisacyl residue which is derived from a C 2 -C 12 dicarboxylic acid or C 1 -C 12 alkylene;
- Z is C 1 -C 12 alkylene; with the proviso that compounds A, B, C are excluded
- the preparation of the compounds of the present invention is carried out according to known reaction steps.
- a general method for the preparation of the compounds of formula Ia, IIa, and IIIa starts from the 4-oxo compounds Xa or XIa which are described in GB 2335190 or from XIIa which is a known compound described for example in DE 2352127.
- nitroxides are then coupled with a compound of formula HX under oxidative conditions.
- Suitable radicals X are as defined above.
- This coupling reaction is descriebed for example in GB 2335190.
- the coupling reaction is carried out in the presence of a Cu(II) salt according to the method described in International Application No. PCT/EP01/05668.
- nitroxides can also be used as polymerization regulators in combination with a source of free radicals.
- a further subject of the invention is therefore a polymerizable composition, comprising
- n 1 or 2;
- Y and Y′ are independently C 1 -C 12 alkyl, C 3 -C 12 alkenyl, C 3 -C 12 alkinyl, C 5 -C 8 cycloalkyl, phenyl, naphthyl, C 7 -C 9 phenylalkyl; or
- Y and Y′ together form one of the bivalent groups —C(R 1 )(R 2 )—CH(R 3 )—, CH(R 1 )—CH 2 —C(R 2 )(R 3 )—,
- R 1 is hydrogen, C 1 -C 12 alkyl, COOH, COO—(C 1 -C 12 )alkyl or CH 2 OR 4 ;
- R 2 and R 3 are independently hydrogen, methyl ethyl, COOH or COO—(C 1 -C 12 )alkyl;
- R 4 is hydrogen, C 1 -C 12 alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms;
- Q is a bisacyl residue which is derived from a C 2 -C 12 dicarboxylic acid or C 1 -C 12 alkylene;
- Z is C 1 -C 12 alkylene
- Preferred is a polymerizable composition wherein in the compound of formula Ib or IIb
- n 1
- Y and Y′ are independently C 1 -C 12 alkyl, C 3 -C 12 alkenyl, ph nyl or benzyl; or
- Y and Y′ together form one of the bivalent groups —C(R 1 )(R 2 )—CH(R 3 )—, CH(R 1 )—CH 2 —C(R 2 )(R 3 )—, —CH(R 2 )—CH 2 —C(R 1 )(R 3 )—, —CH 2 —C(R 1 )(R 2 )—CH(R 3 )—, —CH 2 —CH ⁇ CH—CH 2 — or;
- R 1 is hydrogen, C 1 -C 12 alkyl, COO—(C 1 -C 12 )alkyl or CH 2 OR 4 ;
- R 2 and R 3 are independently hydrogen, methyl ethyl, or COO—(C 1 -C 12 )alkyl;
- R 4 is hydrogen, C 1 -C 12 alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 12 carbon atoms.
- the source of radicals may be a bis-azo compound, a peroxide or a hydroperoxide.
- the source of radicals is 2,2′-azobisisobutyronitrile, 2,2′-azobis(2-methyl-butyronitrile), 2,2′-azobis(2,4-dimethylvaleronitrile), 2,2′-azobis(4-methoxy-2,4-dimethylvaleronitrile), 1,1′-azobis(1-cyclohexanecarbonitrile), 2,2′-azobis(isobutyramide) dihydrate, 2-phenylazo-2,4-dimethyl-4-methoxyvaleronitrile, dimethyl-2,2′-azobisisobutyrate, 2-(carbamoylazo)isobutyronitrile, 2,2′-azobis(2,4,4-trimethylpentane), 2,2′-azobis(2-methylpropane), 2,2′-azobis(N,N′-dimethyleneisobutyramidine), free base or hydrochloride, 2,2′-azobis(2-amidinopropane
- Preferred peroxides and hydroperoxides are acetyl cyclohexane sulphonyl peroxide, diisopropyl peroxy dicarbonate, t-amyl perneodecanoate, t-butyl perneodecanoate, t-butyl perpivalate, t-amylperpivalate, bis(2,4-dichlorobenzoyl)peroxide, diisononanoyl peroxide, didecanoyl peroxide, dioctanoyl peroxide, dilauroyl peroxide, bis (2-methylbenzoyl) peroxide, disuccinic acid peroxide, diacetyl peroxide, dibenzoyl peroxide, t-butyl per 2-ethylhexanoate, bis-(4-chlorobenzoyl)-peroxide, t-butyl perisobutyrate,
- the radical source is preferably present in an amount of from 0.01 mol-% to 30 mol-%, more preferred in an amount of from 0.1 mol-% to 20 mol-% and most preferred in an amount of from 0.5 mol-% to 10 mol-% based on the monomer or monomer mixture.
- the nitroxyl compound is present in an amount of from 0.01 mol-% to 20 mol-%, more preferably in an amount of from 0.01 mol-% to 10 mol-% and most preferred in an amount of from 0.05 mol-% to 10 mol-% based on the monomer or monomer mixture.
- the molar ratio of the radical source to the compound of formulae Ib, IIb or IIIb may be from 1:10 to 10:1, preferably from 1:5 to 5:1 and more preferably from 1:2 to 2:1.
- Still another subject of the present invention is a process for preparing an oligomer, a cooligomer, a polymer or a copolymer (block or random) by free radical polymerization of at l ast one ethylenically unsaturated monomer/oligomer, which comprises subjecting the above composition to heat or actinic radiation.
- composition is preferably subjected to heat from 90° C. to 160° C.
- a further subject of the invention is a compound of formula Ib or IIb
- n 1 or 2;
- Y and Y′ are independently C 1 -C 12 alkyl, C 3 -C 12 alkenyl, C 3 -C 12 alkinyl, C 5 -C 8 cycloalkyl, phenyl, naphthyl, C 7 -C 9 phenylalkyl; or
- Y and Y′ together form one of the bivalent groups —C(R 1 )(R 2 )—CH(R 3 )—, CH(R 1 )—CH 2 —C(R 2 )(R 3 )—, —CH(R 2 )—CH 2 —C(R 1 )(R 3 )—, —CH 2 —C(R 1 )(R 2 )—CH(R 3 )—, o-phenylene, 1,2-cyclohexyliden, —CH 2 —CH ⁇ CH—CH 2 — or
- R 1 is hydrogen, C 1 -C 12 alkyl, COOH, COO—(C 1 -C 12 )alkyl or CH 2 OR 4 ;
- R 2 and R 3 are independently hydrogen, methyl ethyl, COOH or COO—(C 1 -C 12 )alkyl;
- R 4 is hydrogen, C 1 -C 12 alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms;
- Q is a bisacyl residue which is derived from a C 2 -C 12 dicarboxylic acid or C 1 -C 12 alkylene;
- Z is C 1 -C 12 alkylene; with the proviso that compounds D, E, F, G, H
- Yet another subject of the invention is a polymer or oligomer, having attached at least one oxyamine group derived from formula Ia, IIa or IIIa.
- the polymers or oligomers can also be termed macroinitiators. They can be used to start polymerization for example with a second monomer which then results in the formation of a block copolym r as already described above.
- the title compound is prepared by oxidising 7,9-diethyl-2-hydroxymethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan, prepared according to U.S. Pat. No. 4,105,626. A red oil is obtained. Elemental analysis for C 15 H 28 NO 4 calculated: C, 62.91%; H, 9.85%; N, 4.89%; found: C, 62.83%; H, 9.83%; N, 4.75%.
- the title compound is prepared by oxidising 7,9-diethyl-2-hydroxymethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan, prepared according to U.S. Pat. No. 4,105,626. A red oil is obtained. Elemental analysis for C 15 H 28 NO 4 calculated: C, 68.42%; H, 10.81; N, 4.69; found: C, 68.21%; H, 10.66%; N, 4.63%.
- the title compound is prepared in analogy to Exampl A1 by oxidizing acetic acid 3,8,10-triethyl-7,8,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undec-3-yl-methyl ester (prepared in analogy to U.S. Pat. No. 4,105,626, Example 4) as a red oil.
- reaction mixtures are flushed before polymerization with argon and evacuated under vaccum applying a freeze-thaw cycle. The reaction mixtures are then polymerized under argon atmosphere.
- Conversion is determined by removing unreacted monomers from the polymer at 80° C. and 0.002 torr for 30 minutes, weighing the remaining polymer and subtract the weight of the initiator.
- Characterization of the polymers is carried out by MALDI-MS (Matrix Assisted Laser Desorption Ionization Mass Spectrometry) and/or GPC (Gel Permeation Chromatography).
- MALDI-MS Measurements are performed on a linear TOF (Time Of Flight) MALDI-MS LDI-1700 Linear Scientific Inc., Reno, USA.
- the matrix is 2,5-dihydroxybenzoic acid and the laser wavelength is 337 nm.
- GPC Is performed using RHEOS 4000 of FLUX INSTRUMENTS. Tetrahydrofurane (THF) is us d as a solvent and is pumped at 1 ml/min.
- THF Tetrahydrofurane
- Two chromatography columns ar put in series: type Plgel 5 ⁇ m mixed-C of POLYMER INSTRUMENTS, Shropshire, UK. Measurements are performed at 40° C. The columns are calibrated with low polydispersity polystyrenes having Mn from 200 to 2 000 000 Dalton. Detection is carried out using a RI-Detector ERC-7515A of ERCATECH AG at 30° C.
- Initiator/regulator is compound 35, Table 1
- the NO radical is compound 35, Table 4:
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Abstract
The present invention relates to selected 1-alkoxy-2,2,6,6 tetramethyl piperidine, 1-alkoxy-2,2 diethyl-6,6 dimethyl piperidine and 1-alkoxy-2,6 diethyl-2,3,6 dimethyl piperidine derivatives which are substituted in the 4 position by two oxygen atoms forming an open chain or cyclic ketal structure, a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) said piperidine derivatives. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, and the use of 1-alkoxy-2,2,6,6 tetramethyl piperidine, 1-alkoxy-2,2 diethyl-6,6 dimethyl piperidine and 1-alkoxy-2,6 diethyl-2,3,6 dimethyl piperidine derivatives which are substituted in the 4 position by two oxygen atoms forming an open chain or cyclic ketal structure for controlled polymerization. The intermediate N-oxyl derivatives, a composition of the N-oxyl derivatives with ethylenically unsaturated monomers and a free radical initiator, as well as a porcess for polymerization are also subjects of the present invention.
Description
- The present invention relates to selected 1-alkoxy-2,2,6,6 tetramethyl piperidine, 1-alkoxy-2,2 diethyl-6,6 dimethyl piperidine and 1-alkoxy-2,6 diethyl-2,3,6 dimethyl piperidine derivatives which are substituted in the 4 position by two oxygen atoms forming an open chain or cyclic ketal structure, a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) said piperidine derivatives. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, and the use of 1-alkoxy-2,2,6,6 tetramethyl piperidine, 1-alkoxy-2,2 diethyl-6,6 dimethyl piperidine and 1-alkoxy-2,6 diethyl-2,3,6 dimethyl piperidine derivatives which are substituted in the 4 position by two oxygen atoms forming an open chain or cyclic ketal structure for controlled polymerization. The intermediate N-oxyl derivatives, a composition of the N-oxyl derivatives with ethylenically unsaturated monomers and a free radical initiator, as well as a process for polymerization are also subjects of the present invention.
- The compounds of the present invention provide polymeric resin products having low polydispersity. The polymerization process proceeds with good monomer to polymer conversion efficiency. In particular, this invention relates to stable free radical-mediated polymerization processes which provide homopolymers, random copolymers, block copolymers, multiblock copolymers, graft copolymers and the like, at enhanced rates of polymerization and enhanced monomer to polymer conversions.
- U.S. Pat. No. 4,581,429 to Solomon et al., issued Apr. 8, 1986, discloses a free radical polymerization process which controls the growth of polymer chains to produce short chain or oligomeric homopolymers and copolymers, including block and graft copolymers. The process employs an initiator having the formula (in part) R′R″N—O—X, where X is a free radical speci s capable of polymerizing unsaturated monomers. The reactions typically have low conversion rates. Specifically mentioned radical R′R″N—O. groups are derived from 1,1,3,3 tetraethylisoindoline, 1,1,3,3 tetrapropylisoindoline, 2,2,6,6 tetramethylpiperidine, 2,2,5,5 tetramethylpyrrolidine or di-t-butylamine. However, the suggested compounds do not fulfill all requirements. Particularly the polymerization of acrylates does not proceed fast enough and/or the monomer to polymer conversion is not as high as desired.
- EP-A-0 574 666 describes some novel 1-oxyl-2,2,6,6 tetramethylpiperidin compounds and their preparation, which have an open chain or cyclic ketal structure in the 4 position.
- U.S. Pat. No. 4,105,626 discloses also nitroxides and their preparation which are derived from 2,6-diethyl-2,6-dimethyl piperidine which have a ketal structure in 4 position.
- However none of the nitroxide and nitroxylether compounds have been described as regulators/initiators for controlled radical polymerization.
- GB 2335190 firstly discloses polymerization regulators/initiators on the basis of 2,2,6,6-tetraalkylpiperidine, wherein the alkyl groups have from 1 to 6 carbon atoms and at least one group is different from methyl. No specific compound having a ketal structure in the 4-position is mentioned.
- It has now been found, that amongst those 2,2,6,6-tetraalkylpiperidines generically disclosed in U.S. Pat. No. 4,581,429 and GB 2335190 those are of particular value which are derivatives of 1-alkoxy-2,2,6,6 tetramethyl piperidine, 1-alkoxy-2,2 diethyl-6,6 dimethyl piperidine and of 1-alkoxy-2,6 diethyl-2,3,6 dimethyl piperidine which are substituted in the 4 position by two oxygen atoms forming an open chain or cyclic ketal structure.
- The ketal structure in 4 position ensures high thermal stability which is important for storag, particularly at elevated temperatures. The ketal structure is thermally significantly more stable compared to the corresponding 4-oxo compound.
- The compounds exhibit an unchanged initiating/regulating activity even after storage at elevated temperatures as for example used in conventional stability tests.
- Another problem associated with nitroxyl or nitroxyl ether mediated free radical polymerization is the formation of a significant color of the resulting polymer. The compounds of the present invention which have a ketal structure in 4-position impart significantly less color to the polymer compared to other prior art compounds of similar structure.
- The steric hindrance introduced by the two ethyl groups instead of two methyl groups further leads to an increased initiating activity and control of polymerization.
- The particular substitution pattern in 2 and 6 position of the piperidin ring allows high monomer to polymer conversions in short times and low polydispersities which are generally below 2. High monomer to polymer conversions are even achieved with acrylates, such as ethyl- or butyl-acrylate. The temperature necessary to achieve high conversion in short times may be for example as low as 120° C.
- One subject of the present invention is a polymerizable composition, comprising
- a) at least one ethylenically unsaturated monomer or oligomer, and
-
- wherein
- n is 1 or 2;
- X is selected from the group consisting of —CH2-phenyl, CH3CH-phenyl, (CH3)2C-phenyl, (C5-C6cycloalkyl)2CCN, (CH3)2CCN, —CH2CH═CH2, CH3CH—CH═CH2, 3-cyclohexenyl, 3-cyclo-pentenyl, (C1-C4alkyl)CR20—C(O)-phenyl, (C1-C4)alkyl-CR20—C(O)—(C1-C4)alkoxy, (C1-C4)alkyl-CR20—C(O)—(C1-C4)alkyl, (C1-C4)alkyl-CR20—C(O)—N-di(C1-C4)alkyl, (C1-C4)alkyl-CR20—C(O)—
-
- wherein
- R20 is hydrogen or (C1-C4)alkyl, R21 is hydrogen, C1-C4alkyl or phenyl and R22 is C1-C12alkyl which is unsubstituted or substituted by OH or N(R20)(R21) or which is interrupted by O or NR20;
- if n is 1
- Y and Y′ are independently C1-C12alkyl, C3-C12alkenyl, C3-C12alkinyl, C5-C8cycloalkyl, phenyl, naphthyl, C7-C9phenylalkyl; or
- Y and Y′ together form one of the bivalent groups —C(R1)(R2)—CH(R3)—, CH(R1)—CH2—C(R2)(R3)—, —CH(R2)—CH2—C(R1)(R3)—, —CH2—C(R1)(R2)—CH(R3)—, o-phenylene, 1,2-cyclohexyliden,
-
- wherein
- R1 is hydrogen, C1-C12alkyl, COOH, COO—(C1-C12)alkyl or CH2OR4;
- R2 and R3 are independently hydrogen, methyl ethyl, COOH or COO—(C1-C12)alkyl;
- R4 is hydrogen, C1-C12alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms;
- if n is 2
-
- Q is a bisacyl residue which is derived from a C2-C12dicarboxylic acid or C1-C12alkylene; and
- Z is C1-C12alkylene.
- Preferred is a polymerizable composition wherein the compound is of formula Ia or IIa.
- C1-C12alkyl can be linear or branched. Examples are methyl, ethyl, propyl, isopropyl, butyl, 2-butyl, isobutyl, t-butyl, pentyl, 2-pentyl, hexyl, heptyl, octyl, 2-ethylhexyl, t-octyl, nonyl, decyl, undecyl or dodecyl.
- Alkenyl having from 3 to 12 carbon atoms is a branched or unbranched radical, for example propenyl, 2-butenyl, 3-butenyl, isobutenyl, n-2,4-pentadienyl, 3-methyl-2-butenyl, n-2-octenyl, n-2-dodecenyl, isododecenyl.
- Alkinyl having from 3 to 25 carbon atoms is a branched or unbranched radical, for example propinyl (—CH2—C≡CH ), 2-butinyl, 3-butinyl, n-2-octinyl or n-2-dodecinyl.
- Examples of alkoxy are methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, pentoxy, isopentoxy, hexoxy, heptoxy or octoxy.
- C7-C9phenylalkyl is for example benzyl, α-methylbenzyl, α,α-dimethylbenzyl or 2-phenylethyl, benzyl is preferred.
- C1-C12alkylene is a branched or unbranched radical, for example methylene, ethylene, propylene, trimethylene, tetramethylene, pentamethylene, hexamethylene, heptamethylene, octamethylene, decamethylene or dodecamethylene.
- C5-C8cycloalkyl is for example cyclopentyl, cyclohexyl, cycloheptyl, methylcyclopentyl or cyclooctyl.
- Examples of a monocarboxylic acid having up to 18 carbon atoms are formic acid, acetic acid, propionic acid, the isomers of valeric acid, methyl ethyl acetic acid, trimethyl acetic acid, capronic acid, lauric acid or stearic acid. Examples for unsaturated aliphatic acids are acrylic acid, methacrylic acid, crotonic acid, linolic acid and oleic acid.
- Typical examples of cycloaliphatic carboxylic acids are cyclohexane carboxylic acid or cyclopentane carboxylic acid.
- Examples of aromatic carboxylic acids are benzoic acid, salicylic acid or cinnamic acid.
- Examples of dicarboxylic acids are oxalic acid, malonic acid, succinic acidglutaric acid adipic acid, sebatic acid, fumaric acid, maleic acid, phthalic acid, isophthalic acid, terephthalic acid.
- Preferred is a polymerizable composition wherein in the compound of formula Ia, IIa or IIIa X is selected from the group consisting of —CH2-phenyl, CH3CH-phenyl, (CH3)2C-phenyl, (C5-C6cycloalkyl)2CCN, (CH3)2CCN, 3-cyclohexenyl and the other substituents are as defined above, most preferably X is CH3CH-phenyl.
- Also preferred is a polymerizable composition wherein in the compound of formula Ia, IIa or IIIa X is selected from the group consisting of —CH2-phenyl, CH3CH-phenyl, (CH3)2C-phenyl, (C5-C6cycloalkyl)2CCN, (CH3)2CCN, 3-cyclohexenyl;
- n is 1
- Y and Y′ are independently C1-C12alkyl, C3-C12alkenyl, C3-C12alkinyl, C5-C8cycloalkyl, phenyl, naphthyl, C7-C9phenylalkyl; or
-
- wherein
- R1 is hydrogen, C1-C12alkyl, COOH, COO—(C1-C12)alkyl or CH2OR4;
- R2 and R3 are independently hydrogen, methyl ethyl, COOH or COO—(C1-C12)alkyl;
- R4 is hydrogen, C1-C12alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms.
- More preferred is a polymerizable composition wherein in the compound of formula Ia, IIa or IIIa X is CH3CH-phenyl;
- n is 1
- Y and Y′ are independently C1-C12alkyl, C3-C12alkenyl, phenyl or benzyl; or
- Y and Y′ together form one of the bivalent groups —C(R1)(R2)—CH(R3)—, CH(R1)—CH2—C(R2)(R3)—, —CH(R2)—CH2—C(R1)(R3)—, —CH2—C(R1)(R2)—CH(R3)—, —CH2—CH═CH—CH2— or; wherein
- R1 is hydrogen, C1-C12alkyl, COO—(C1-C12)alkyl or CH2OR4;
- R2 and R3 are independently hydrog n, methyl ethyl, or COO—(C1-C12)alkyl;
- R4 is hydrogen, C1-C12alkyl, benzyl, or a monoval nt acyl residu d rived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 12 carbon atoms.
- Most suitable individual compounds are given in Tables 1, 2 and 3
TABLE 1 Compounds according to formula (Ia) 1 2,6-Diethyl-4,4-dimethoxy- 2,3,6-trimethyl-1-(1-phenyl- ethoxy)-piperidine 2 4,4-Diethoxy-2,6-diethyl- 2,3,6-trimethyl-1-(1-phenyl- ethoxy)-piperidine 3 2,6-Diethyl-2,3,6-trimethyl- 1-(1-phenyl-ethoxy)-4,4- dipropoxy-piperidine 4 4,4-Dibutoxy-2,6-diethyl- 2,3,6-trimethyl-1-(1-phenyl- ethoxy)-piperidine 5 2,6-Diethyl-4,4- diisobutoxy-2,3,6-trimethyl- 1-(1-phenyl-ethoxy)- piperidine 6 2,6-Diethyl-2,3,6-trimethyl- 4,4-bis-octyloxy-1-(1- phenyl-ethoxy)-piperidine 7 4,4-Bis-allyloxy-2,6-diethyl- 2,3,6-trimethyl-1-(1-phenyl- ethoxy)-piperidine 8 4,4-Bis-cyclohexyloxy-2,6- diethyl-2,3,6-trimethyl-1-(1- phenyl-thoxy)-piperidin 9 4,4-Bis-benzyloxy-2,6- diethyl-2,3,6-trimethyl-1-(1- phenyl-ethoxy)-piperidin 10 7,9-Diethyl-6,7,9-trimethyl-8- (1-phenyl-ethoxy)-1,4-dioxa- 8-aza-spiro[4.5]decane 11 7,9-Diethyl-2,6,7,9- tetramethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 12 2,7,9-Triethyl-6,7,9- trimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 13 7,9-Diethyl-6,7,9-trimethyl-8- (1-phenyl-ethoxy)-2-propyl- 1,4-dioxa-8-aza- spiro[4.5]decane 14 2-Butyl-7,9-diethyl-6,7,9- trimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 15 7,9-Diethyl-6,7,9-trimethyl- 2-octyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 16 2-Decyl-7,9-diethyl-6,7,9- trimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 17 2-Dodecyl-7,9-diethyl- 6,7,9-trimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 18 [7,9-Diethyl-6,7,9-trimethyl- 8-(1-phenyl-ethoxy)-1,4- dioxa-8-aza-spiro[4.5]d c- 2-yl]-methanol 19 Acetic acid 7,9-diethyl-8- hydroxy-6,7,9-trimethyl-1,4- dioxa-8-aza-spiro[4.5]dec-2- ylmethyl ester, compound with isopropyl-benzene 20 Octadecanoic acid 7,9- diethyl-6,7,9-trimethyl-8-(1- phenyl-ethoxy)-1,4-dioxa- 8-aza-spiro[4.5]dec-2- ylmethyl ester 21 Benzoic acid 7,9-diethyl-8- hydroxy-6,7,9-trimethyl- 1,4-dioxa-8-aza- spiro[4.5]dec-2-ylmethyl ester; compound with isopropyl-benzene 22 7,9-Diethyl-2- methoxymethyl-6,7,9- trimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 23 2-Cyclohexyloxymethyl- 7,9-diethyl-6,7,9-trimethyl- 8-(1-phenyl-ethoxy)-1,4- dioxa-8-aza- spiro[4.5]decane 24 2-Benzyloxymethyl-7,9- diethyl-6,7,9-trimethyl-8-(1- phenyl-ethoxy)-1,4-dioxa- 8-aza-spiro[4.5]decane 25 Octanedioic acid bis-[7,9- diethyl-6,7,9-trimethyl-8-(1- phenyl-ethoxy)-1,4-dioxa-8- aza-spiro[4.5]dec-2-ylmethyl] ester 26 Terephthalic acid bis-[7,9- diethyl-6,7,9-trimethyl-8-(1- phenyl-ethoxy)-1,4-dioxa- 8-aza-spiro[4.5]dec-2- ylmethyl] ester 27 1,4-Bis-{[7,9-diethyl-6,7,9- trimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]dec-2-yl]- methyloxy}-butane 28 7,9-Diethyl-2,2,6,7,9- pentamethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 29 7,9-Diethyl-2,3,6,7,9- pentamethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 30 2,3-Benzo-7,9-diethyl- 6,7,9-trimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 31 2,3-Cyclohexano-7,9-diethyl- 6,7,9-trimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 32 7,9-Diethyl-6,7,9-trimethyl- 8-(1-phenyl-ethoxy)-1,4- dioxa-8-aza- spiro[4.5]decane-2,3- dicarboxylic acid 33 7,9-Diethyl-6,7,9-trimethyl- 8-(1-phenyl-ethoxy)-1,4- dioxa-8-aza- spiro[4.5]decane-2,3- dicarboxylic acid dimethyl ester 34 8,10_diethyl-7,8,10- trimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 35 8,10-Diethyl-3,3,7,8,10- pentamethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 36 3,8,10-Triethyl-3,7,8,10- tetramethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 37 3,3,8,10-Tetraethyl-7,8,10- trimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 38 8,10-Diethyl-3,7,8,10- tetramethyl-9-(1-phenyl- ethoxy)-3-propyl-1,5-dioxa- 9-aza-spiro[5.5]undecane 39 3-Butyl-3,8,10-triethyl- 7,8,10-trimethyl-9-(1- phenyl-ethoxy)-1,5-dioxa- 9-aza-spiro[5.5]undecane 40 2,4-Diethyl-1,2,4-trimethyl-3- (1-phenyl-ethoxy)-7,16- dioxa-3-aza- dispiro[5.2.5.2]hexadec-11- ene 41 [8,10-Diethyl-3,7,8,10- tetramethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undec-3-yl]- methanol 42 [3,8,10-Triethyl-7,8,10- trimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undec-3-yl]- methanol 43 8,10-Diethyl-3- methoxymethyl-3,7,8,10- tetramethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 44 3-Cyclohexyloxymethyl- 8,10-diethyl-3,7,8,10- tetramethyl-9-(1-phenyl- ethoxy)1,5-dioxa-9-aza- spiro[5.5]undecane 45 3-Benzyloxymethyl-8,10- diethyl-3,7,8,10- tetramethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 46 Acetic acid 8,10-diethyl- 3,7,8,10-tetramethyl-9-(1- phenyl-ethoxy)-1,5-dioxa-9- aza-spiro[5.5]undec-3- ylmethyl ester 47 Octanedioic acid bis-[8,10- diethyl-3,7,8,10- tetramethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undec-3-ylmethyl] ester 48 1,6-Bis-{3,8,10-triethyl- 7,8,10-trimethyl-9-(1- phenyl-ethoxy)-1,5-dioxa- 9-aza-spiro[5.5]undec-3- methyloxy}-hexane 49 8,10-Diethyl-3,7,8,10- tetramethyl-9-(1-phenyl)- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane-3- carboxylic acid 50 8,10-Diethyl-3,7,8,10- tetramethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane-3- carboxylic acid methyl ester 51 8,10-Diethyl-7,8,10- trimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane-3,3- dicarboxylic acid diethyl ester 52 1,6-Bis{3,8,10-triethyl- 7,8,10-trimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]end c-3- methyloxy}-hexane 53 2,4-Diethyl-1,2,4-trimethyl- 3-(1-phenyl-ethoxy)-7,12- dioxa-3-aza- spiro[5.6]dodec-9-ene 54 2-(8,10-Diethyl-3,3,7,8,10- pentamethyl-1,5-dioxa-9- aza-spiro[5.5]undec-9- yloxy)-propionic acid 2- hydroxy-ethyl ester -
TABLE 2 Compounds according to formula IIa 1 2,2-Diethyl-4,4-dimethoxy- 6,6-dimethyl-1-(1-phenyl- ethoxy)-piperidine 2 4,4-Diethyloxy-2,2-diethyl- 6,6-dimethyl-1-(1-phenyl- ethoxy)-piperidine 3 2,2-Diethyl-6,6-dimethyl-1- (1-phenyl-ethoxy)-4,4- dipropoxy-piperidine 4 4,4-Dibutoxy-2,2-diethyl-6,6- dimethyl-1-(1-phenyl-ethoxy)- piperidine 5 2,2-Diethyl-4,4- diisobutoxy-6,6-dimethyl-1- (1-phenyl-ethoxy)- piperidine 6 2,2-Diethyl-6,6-dimethyl-4,4- bis-octyloxy-1-(1-phenyl- ethoxy)-piperidine 7 4,4-Bis-allyloxy-2,2-diethyl- 6,6-dimethyl-1-(1-phenyl- ethoxy)-piperidine 8 4,4-Bis-cyclohexyloxy-2,2- diethyl-6,6-dimethyl-1-(1- phenyl-ethoxy)-piperidine 9 4,4-Bis-benzyloxy-2,2- diethyl-6,6-dimethyl-1-(1- phenyl-ethoxy)-piperidine 10 7,7-Diethyl-9,9-dimethyl-8-(1- phenyl-ethoxy)-1,4-dioxa-8- aza-spiro[54.5]decane 11 7,7-Diethyl-2,9,9-trimethyl- 8-(1-phenyl-ethoxy)-1,4- dioxa-8-aza-spiro[4.5]- decane 12 2,7,7-Triethyl-9,9-dimethyl- 8-(1-phenyl-ethoxy)-1,4- dioxa-8-aza- spiro[4.5]decane 13 7,7-Diethyl-9,9-dimethyl-8-(1- phenyl-ethoxy)-2-propyl-1,4- dioxca-8-aza-spiro[4.5]decane 14 2-Butyl-7,7-diethyl-9,9- dimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 15 7,7-Diethyl-9,9-dimethyl-2- octyl-8-(1-phenyl-ethoxy)- 1,4-dioxa-8-8-aza- spiro[4.5]decane 16 2-Decyl-7,7-diethyl-9,9- dimethyl-8-(1-phenyl-ethoxy)- 1,4-dioxa-8-aza- spiro[4.5]decane 17 2-Dodecyl-7,7-diethyl-9,9- dimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 18 [7,7-Diethyl-9,9-dimethyl-8- (1-phenyl-ethoxy)-1,4-dioxa- 8-aza-spiro[4.5]dec-2-yl]- methanol 19 Acetic acid 7,7-diethyl-8- hydroxy-9,9-dimethyl-1,4- dioxa-8-aza-spiro[4.5]dec-2- ylmethyl ester; compound with isopropyl-benzene 20 Octadecanoic acid 7,7- diethyl-9,9-dimethyl-8-(1- phenyl-ethoxy)-1,4-dioxa- 8-aza-spiro[4.5]dec-2- ylmethyl ester 21 Benzoic acid 7,7-diethyl-8- hydroxy-9,9-dimethyl-1,4- dioxa-8-aza-spiro[4.5]dec-2- ylmethyl ester; compound with isopropyl-benzene 22 7,7-Diethyl-2-methoxymethyl- 9,9-dimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 23 2-Cyclohexyloxymethyl- 7,7-diethyl-9,9-dimethyl-8- (1-phenyl-ethoxy)-1,4- dioxa-8-aza- spiro[4.5]decane 24 2-Benzyloxymethyl-7,7- diethyl-9,9-dimethyl-8-(1- phenyl-ethoxy)-1,4-dioxa-8- aza-spiro[4.5]decane 25 Octanedioic acid bis-[7,7- diethyl-9,9-dimethyl-8-(1- ph nyl- thoxy)-1,4-dioxa-8- aza-spiro[4.5]dec-2-ylmethyl] ester 26 Terephthalic acid bis-[7,7- diethyl-9,9-dimethyl-8-(1- phenyl-ethoxy)-1,4-dioxa- 8-aza-spiro[4.5]dec-2- ylmethyl ester 27 1,4-Bis{[7,7-diethyl-9,9- dimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]dec-2-yl]- methyloxy}-butane 28 7,7-Diethyl-2,2,9,9- tetramethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 29 7,7-Diethyl-2,3,9,9- tetramethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 30 2,3-Benzo-7,7-diethyl-9,9- dimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 31 2,3-Cyclohexano-7,7-diethyl- 9,9-dimethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 32 7,7-Diethyl-9,9-dimethyl-8- (1-phenyl-ethoxy)-1,4- dioxa-8-aza- spiro[4.5]decane-2,3- dicarboxylic acid 33 7,7-Diethyl-9,9-dimethyl-8- (1-phenyl-ethoxy)-1,4-dioxa- 8-aza-spiro[4.5]decane-2,3- dicarboxylic acid dimethyl ester 34 8,8-Diethyl-10,10-dimethyl-9- (1-phenyl-ethoxy)-1,5-dioxa- 9-aza-spiro[5.5]undercane 35 8,8-Diethyl-3,3,10,10- tetramethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 36 3,8,8-Triethyl-3,10,10- trimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 37 3,3,8,8-Tetraethyl-10,10- dimethyl-9-(1-phenyl-ethoxy)- 1,5-dioxa-9-aza- spiro[5.5]undecane 38 8,8-Diethyl-3,10,10- trimethyl-9-(1-phenyl- ethoxy)-3-propyl-1,5-dioxa- 9-aza-spiro[5.5]undecane 39 3-Butyl-3,8,8-triethyl-10,10- dimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 40 2,2-Diethyl-4,4-dimethyl-3-(1- phenyl-ethoxy)-7,16-dioxa-3- aza-dispiro[5.2.5.2]hexadec- 11-ene 41 [8,8-Diethyl-3,10,10-tri- methyl-9-(1-phenyl-eth- oxy)-1,5-dioxa-9-aza- spiro[5.5]undec-3-yl]- methanol 42 [3,8,8-Triethyl-10,10- dimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undec-3-yl]- methanol 43 8,8-Diethyl-3-methoxymethyl- 3,10,10-trimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 44 3-Cyclohexyloxymethyl- 8,8-diethyl-3,10,10- trimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 45 3-Benzyloxymethyl-8,8- diethyl-3,10,10-trimethyl-9- (1-phenyl-ethoxy)-1,5-dioxa- 9-aza-spiro[5.5]undecane 46 Acetic acid 8,8-diethyl- 3,10,10-trimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undec-3-ylmethyl ester 47 Octandioic acid bis-[8,8- diethyl-3,10,10-trimethyl-9- (1-phenyl-ethoxy-1,5- dioxa-9-aza- spiro[5.5]undec-3-ylmethyl] ester 48 1,6-Bis{[3,8,8-triethyl-10,10- dimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undec-3-yl]- methyloxy}-hexane 49 8,8-Diethyl-3,10,10-trimethyl- 9-(1-phenyl-ethoxy)-1,5- dioxa-9-aza- spiro[5.5]undecane-3- carboxylic acid 50 8,8-Diethyl-3,10,10- trimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane-3- carboxylic acid methyl ester 51 8,8-Diethyl-10,10-dimethyl- 9-(1-phenyl-ethoxy)-1,5- dioxa-9-aza- spiro[5.5]undecane-3,3- dicarboxylic acid diethyl ester 52 3,3-Bisspiro{8,8-diethyl- 10,10-dimethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane} 53 2,2-Diethyl-4,4-dimethyl-3- (1-phenyl-ethoxy)-7,12- dioxa-3-aza- spiro[5.6]dodec-9-ene -
TABLE 3 Compounds according to formula IIIa 1 4,4-Dimethoxy-2,2,6,6- tetramethyl-1-(1-phenyl- ethoxy)-piperidine 2 4,4-Diethoxy-2,2,6,6- tetramethyl-1-(1-phenyl- ethoxy)-piperidine 3 2,2,6,6-Tetramethyl-1-(1- phenyl-ethoxy)-4,4- dipropoxy-piperidine 4 4,4-Dibutoxy-2,2,6,6- tetramethyl-1-(1-phenyl- ethoxy)-piperidine 5 4,4-Diisobutoxy-2,2,6,6- tetramethyl-1-(1-phenyl- ethoxy)-piperidine 6 2,2,6,6-Tetramethyl-4,4-bis- octyloxy-1-(1-phenyl- ethoxy)-piperidine 7 4,4-Bis-allyloxy-2,2,6,6- tetramethyl-1-(1-phenyl- ethoxy)-piperidine 8 4,4-Bis-cyclohexyloxy- 2,2,6,6-tetramethyl-1-(1- phenyl-ethoxy)-piperidine 9 4,4-Bis-benzyloxy-2,2,6,6- tetramethyl-1-(1-phenyl- ethoxy)-piperidine 10 2,7,7,9,9-Pentamethyl-8-(1- phenyl-ethoxy)-1,4-dioxa-8- aza-spiro[4.5]decane 11 2-Ethyl-7,7,9,9-tetramethyl- 9-(1-phenyl-ethoxy)-1,4- dioxa-8-aza- spiro[4.5]decane 12 7,7,9,9-Tetramethyl-8-(1- phenyl-ethoxy)-2-propyl- 1,4-dioxa-8-aza- spiro[4.5]decane 13 2-Butyl-7,7,9,9-tetramethyl- 8-(1-phenyl-ethoxy)-1,4- dioxa-8-aza- spiro[4.5]decane 14 7,7,9,9-Tetramethyl-2- octyl-8-(1-phenyl-ethoxy)- 1,4-dioxa-8-aza- spiro[5.5]decane 15 2-Decyl-7,7,9,9- tetramethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 16 2-Dodecyl-7,7,9,9- tetramethyl-8-(1-phenyl- ethoxy)-1,4-dioxy-8-aza- spiro[4.5]decane 17 [7,7,9,9-Tetramethyl-8-(1- phenyl-ethoxy)-1,4-dioxa-8- aza-spiro[4.5]dec-2-yl]- methanol 18 Acetic acid 8-hydroxy- 7,7,9,9-tetramethyl-1,4- dioza-8-aza-spiro[4.5]dec- 2-ylmethyl ester; compound with isopropyl-benzene 19 Octadecanoic acid 7,7,9,9- tetramethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]dec-2-ylmethyl ester 20 Benzoic acid 7,7,9,9- tetramethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]dec-2-ylmethyl ester 21 2-Methoxymethyl-7,7,9,9- tetramethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 22 2-Cyclohexyloxymethyl- 7,7,9,9-tetramethyl-8-(1- phenyl-ethoxy)-1,4-dioxa-8- aza-spiro[4.5]decane 23 2-Benzyloxymethyl-7,7,9,9- tetramethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 24 Octanedioic acid bis- [7,7,9,9-tetramethyl-8-(1- phenyl-ethoxy)-1,4-dioxa-8- aza-spiro[4.5]dec-2- ylmethyl] ester 25 Terephthalic acid bis- [7,7,9,9-tetramethyl-8-(1- phenyl-ethoxy)-1,4-dioxa-8- aza-spiro[4.5]dec-2- ylmethyl] ester 26 1,4-Bis-{[7,7,9,9- tetramethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]dec-2-yl]- methyloxy}-butane 27 2,2,7,7,9,9-Hexamethyl-8- (1-phenyl-ethoxy)-1,4- dioxa-8-aza- spiro[4.5]decane 28 2,3,7,7,9,9-Hexamethyl-8- (1-phenyl-ethoxy)-1,4- dioxa-8-aza- spiro[4.5]decane 29 2,3-Benzo-7,7,9,9- tetramethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 30 2,3-Cyclohexano-7,7,9,9- tetramethyl-8-(1-phenyl- ethoxy)-1,4-dioxa-8-aza- spiro[4.5]decane 31 7,7,9,9-Tetramethyl-8-(1- phenyl-ethoxy)-1,4-dioxa-8- aza-spiro[4.5]decane-2,3- dicarboxylic acid 32 7,7,9,9-Tetramethyl-8-(1- phenyl-ethoxy)-1,4-dioxa-8- aza-spiro[4.5]decane-2,3- dicarboxylic acid dimethyl ester 33 8,8,10,10-Tetramethyl-9-(1- phenyl-ethoxy)-1,5-dioxa-9- aza-spiro[5.5]undecane 34 3,3,8,8,10,10-Hexamethyl- 9-(1-phenyl-ethoxy)-1,5- dioxa-9-aza- spiro[5.5]undecane 35 3-Ethyl-3,8,8,10,10- pentamethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 36 3,3-Diethyl-8,8,10,10- tetramethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 37 3,8,8,10,10-Pentamethyl-9- (1-phenyl-ethoxy)-3-propyl- 1,5-dioxa-9-aza- spiro[5.5]undecane 38 3-Butyl-3-ethyl-8,8,10,10- tetramethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undecane 39 2,2,4,4-Tetramethyl-3-(1- phenyl-ethoxy)-7,16-dioxa- 3-aza- dispiro[5.2.5.2]hexadec-11- ene 40 [3,8,8,10,10-Pentamethyl-9- (1-phenyl-ethoxy)-1,5- dioxa-9-aza- spiro[5.5]undec-3-yl]- methanol 41 [3-Ethyl-8,8,10,10- tetramethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undec-3-yl]- methanol 42 Acetic acid 3,8,8,10,10- pentamethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undec-3-ylmethyl ester 43 3-Methoxymethyl- 3,8,8,10,10-pentamethyl-9- (1-phenyl-ethoxy)-1,5- dioxa-9-aza- spiro[5.5]undecane 44 3-Cyclohexyloxymethyl- 3,8,8,10,10-pentamethyl-9- (1-phenyl-ethoxy)-1,5- dioxa-9-aza- spiro[5.5]undecane 45 3-Benzyloxymethyl- 3,8,8,10,10-pentamethyl-9- (1-phenyl-ethoxy)-1,5- dioxa-9-aza- spiro[5.5]undecane 46 Octanedioic acid bis- [3,8,8,10,10-pentamethyl-9- (1-phenyl-ethoxy)-1,5- dioxa-9-aza- spiro[5.5]undec-3-ylmethyl] ester 47 1,6-Bis-{[3-ethyl-8,8,10,10- tetramethyl-9-(1-phenyl- ethoxy)-1,5-dioxa-9-aza- spiro[5.5]undec-3-yl]- methyloxy}-hexane 48 3,8,8,10,10-Pentamethyl-9- (1-phenyl-ethoxy)-1,5- dioxa-9-aza- spiro[5.5]undecane-3- carboxylic acid 49 3,8,8,10,10-Pentamethyl-9- (1-phenyl-ethoxy)-1,5- dioxa-9-aza- spiro[5.5]undecane-3- carboxylic acid methyl ester 50 8,8,10,10-Tetramethyl-9- (1-phenyl-ethoxy)-1,5- dioxa-9-aza- spiro[5.5]undecane-3,3- dicarboxylic acid diethyl ester 51 2,2,4,4-Tetramethyl-3-(1- phenyl-ethoxy)-7,12-dioxa- 3-aza-spiro[5.6]dodec-9- ene - Particularly preferred are the compounds of Table 1 and 2.
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- 9-(Cyclohex-2-enyloxy)-8,10-diethyl-3,3,7,8,10-pentamethyl-1,5-dioxa-9-aza-spiro[5.5]undecane
- Preferably the ethylenically unsaturated monomer or oligomer is selected from the group consisting of ethylene, propylene, n-butylene, i-butylene, styrene, substituted styrene, conjugated dienes, acrolein, vinyl acetate, vinylpyrrolidone, vinylimidazole, maleic anhydride, (alkyl)acrylic acidanhydrides, (alkyl)acrylic acid salts, (alkyl)acrylic esters, (meth)acrylonitriles, (alkyl)acrylamides, vinyl halides or vinylidene halides.
- Particularly the ethylenically unsaturated monomers are ethylene, propylene, n-butylene, i-butylene, isoprene, 1,3-butadiene, α-C5-C18alkene, styrene, α-methyl styrene, p-methyl styrene or a compound of formula CH2═C(Ra)—(C═Z)—Rb, wherein Ra is hydrogen or C1-C4alkyl, Rb is NH2, O−(Me+), glycidyl, unsubstituted C1-C18alkoxy, C2-C100alkoxy interrupted by at least one N and/or O atom, or hydroxy-substituted C1-C18alkoxy, unsubstituted C1-C18alkylamino, di(C1-C18alkyl)amino, hydroxy-substituted C1-C18alkylamino or hydroxy-substituted di(C1-C18alkyl)amino, —O—CH2—CH2—N(CH3)2 or —O—CH2—CH2—N+H(CH3)2 An−;
- An− is a anion of a monovalent organic or inorganic acid;
- Me is a monovalent metal atom or the ammonium ion.
- Z is oxygen or sulfur.
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- wherein Rc is C1-C25alkyl, phenyl or phenyl substituted by C1-C18alkyl, Rd is hydrogen or methyl and v is a number from 1 to 50. These monomers are for example derived from non ionic surfactants by acrylation of the corresponding alkoxylated alcohols or phenols. The repeating units may be derived from ethylene oxide, propylene oxide or mixtures of both.
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- An−, wherein An− and Ra have the meaning as defined above and Re is methyl or benzyl. An− is preferably Cl−, Br− or −O3S—CH3.
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- Preferably Ra is hydrogen or methyl, Rb is NH2, gycidyl, unsubstituted or with hydroxy substituted C1-C4alkoxy, unsubstituted C1-C4alkylamino, di(C1-C4alkyl)amino, hydroxy-substituted C1-C4alkylamino or hydroxy-substituted di(C1-C4alkyl)amino; and Z is oxygen.
- Particularly preferred ethylenically unsaturated monomers are styrene, methylacrylate, ethylacrylate, butylacrylate, isobutylacrylate, tert. butylacrylate, hydroxyethylacrylate, hydroxypropylacrylate, dimethylaminoethylacrylate, glycidylacrylates, methyl(meth)acrylate, ethyl(meth)acrylate, butyl(meth)acrylate, hydroxyethyl(meth)acrylate, hydroxypropyl(meth)acrylate, dimethylaminoethyl(meth)acrylate, glycidyl(meth)acrylates, acrylonitrile, acrylamide, methacrylamide or dimethylaminopropyl-methacrylamide.
- Preferably the initiator compound is present in an amount of from 0.01 mol-% to 20 mol-%, more preferably in an amount of from 0.01 mol-% to 10 mol-% and most preferred in an amount of from 0.05 mol-% to 10 mol-% based on the monomer or monomer mixture.
- When monomer mixtures are used mol-% is calculated on the average molecular weight of the mixture.
- Another subject of the present invention is a process for preparing an oligomer, a cooligomer, a polymer or a copolymer (block or random) by free radical polymerization of at least one ethylenically unsaturated monomer or oligomer, which comprises (co)polymerizing the monomer or monomers/oligomers in the presence of an initiator compound of formula Ia, IIa or IIIa under reaction conditions capable of effecting scission of the O—C bond to form two free radicals, the radical .X being capable of initiating polymerization.
- Preferably scission of th O—C bond is eff cted by ultrasonic treatment, heating or exposure to electromagnetic radiation, ranging from γ to microwaves.
- More preferably the scission of the O—C bond is effected by heating and takes place at a temperature of between 50° C. and 160° C.
- Preferred initiators and ethylenically unsaturated monomers have already been mentioned above.
- The process may be carried out in the presence of an organic solvent or in the presence of water or in mixtures of organic solvents and water. Additional cosolvents or surfactants, such as glycols or ammonium salts of fatty acids, may be present. Other suitable cosolvents are described hereinafter.
- Preferred processes use as little solvents as possible. In the reaction mixture it is preferred to use more than 30% by weight of monomer and initiator, particularly preferably more than 50% and most preferrably more than 80%.
- If organic solvents are used, suitable solvents or mixtures of solvents are typically pure alkanes (hexane, heptane, octane, isooctane), hydrocarbons (benzene, toluene, xylene), halogenated hydrocarbons (chlorobenzene), alkanols (methanol, ethanol, ethylene glycol, ethylene glycol monomethyl ether), esters (ethyl acetate, propyl, butyl or hexyl acetate) and ethers (diethyl ether, dibutyl ether, ethylene glycol dimethyl ether), or mixtures thereof.
- The aqueous polymerization reactions can be supplemented with a water-miscible or hydrophilic cosolvent to help ensure that the reaction mixture remains a homogeneous singl phase throughout the monomer conversion. Any water-soluble or water-miscible cosolvent may be used, as long as the aqueous solvent medium is effective in providing a solvent system which prevents precipitation or phase separation of the reactants or polymer products until after all polymerization reactions have been completed. Exemplary cosolvents useful in the present invention may be selected from the group consisting of aliphatic alcohols, glycols, ethers, glycol ethers, pyrrolidines, N-alkyl pyrrolidinones, N-alkyl pyrrolidones, polyethylene glycols, polypropylene glycols, amides, carboxylic acids and salts thereof, esters, organosulfides, sulfoxides, sulfones, alcohol derivatives, hydroxyether derivatives such as butyl carbitol or cellosolve, amino alcohols, ketones, and the like, as well as derivatives thereof and mixtures thereof. Specific examples include methanol, ethanol, propanol, dioxane, ethylene glycol, propylene glycol, diethylene glycol, glycerol, dipropylene glycol, tetrahydrofuran, and other water-soluble or water-miscible materials, and mixtures thereof. When mixtures of water and water-soluble or water-miscible organic liquids are selected as the aqueous reaction media, the water to cosolvent weight ratio is typically in the range of about 100:0 to about 10:90.
- The process is particularly useful for the preparation of block copolymers.
- Block copolymers are, for example, block copolymers of polystyrene and polyacrylate (e.g., poly(styrene-co-acrylate) or poly(styrene-co-acrylate-co-styrene). They are usefull as adhesives or as compatibilizers for polymer blends or as polymer toughening agents. Poly(methylmethacrylate-co-acrylate) diblock copolymers or poly(methylacrylate-co-acrylate-co-methacrylate) triblock copolymers) are useful as dispersing agents for coating systeme, as coating additives (e.g. rheological agents, compatibilizers, reactive diluents) or as resin component in coatings (e.g. high solid paints) Block copolymers of styrene, (meth)acrylates and/or acrylonitrile are useful for plastics, elastomers and adhesives.
- Furthermore, block copolymers of this invention, wherein the blocks alternate between polar monomers and non-polar monomers, are useful in many applications as amphiphilic surfactants or dispersants for preparing highly uniform polymer blends. The (co)polymers of the present invention may have a number average molecular weight from 1 000 to 400 000 g/mol, preferably from 2 000 to 250 000 g/mol and, more preferably, from 2 000 to 200 000 g/mol. When produced in bulk, the number average molecular weight may be up to 500 000 (with the same minimum weights as mentioned above). The number average molecular weight may be determined by size exclusion chromatography (SEC), gel permeation chromatography (GPC), matrix assisted laser desorption/ionization mass spectrometry (MALDI-MS) or, if the initiator carries a group which can be easily distinguished from the monomer(s), by NMR spectroscopy or other conventional methods.
- The polymers or copolymers of the present invention have preferably a polydispersity of from 1.0 to 2, more preferably of from 1.1 to 1.9 and most preferably from 1.1 to 1.8.
- Thus, the present invention also encompasses in the synthesis novel block, multi-block, star, gradient, random, hyperbranched and dendritic copolymers, as well as graft or copolymers.
- The polymers prepared by the present invention are useful for following applications: adhesives, det rgents, dispersants, emulsifiers, surfactants, defoamers, adhesion promoters, corrosion inhibitors, viscosity improvers, lubricants, rheology modifi rs, thickeners, crosslinkers, paper treatment, water tr atment, electronic materials, paints, coatings, photography, ink materials, imaging materials, superabsorbants, cosmetics, hair products, preservatives, biocide materials or modifiers for asphalt, leather, textiles, ceramics and wood.
- Because the present polymerizaton is a “living” polymerization, it can be started and stopped practically at will. Furthermore, the polymer product retains the functional alkoxyamine group allowing a continuation of the polymerization in a living matter. Thus, in one embodiment of this invention, once the first monomer is consumed in the initial polymerizing step a second monomer can then be added to form a second block on the growing polymer chain in a second polymerization step. Therefore it is possible to carry out additional polymerizations with the same or different monomer(s) to prepare multi-block copolymers.
- Furthermore, since this is a radical polymerization, blocks can be prepared in essentially any order. One is not necessarily restricted to preparing block copolymers where the sequential polymerizing steps must flow from the least stabilized polymer intermediate to the most stabilized polymer intermediate, such as is the case in ionic polymerization. Thus it is possible to prepare a multi-block copolymer in which a polyacrylonitrile or a poly(meth)acrylate block is prepared first, then a styrene or butadiene block is attached thereto, and so on.
- Furthermore, there is no linking group required for joining the different blocks of the present block copolymer. One can simply add successive monomers to form successive blocks.
- A plurality of specifically designed polymers and copolymers are accessible by the present invention, such as star and graft (co)polymers as described, inter alia, by C. J. Hawker in Angew. Chemie, 1995, 107, pages 1623-1627, dendrimers as described by K. Matyaszewski et al. in Macrmolecules 1996, Vol 29, No. 12, pages 4167-4171, graft (co)polymers as described by C. J. Hawker et al. in Macromol. Chem. Phys. 198, 155-166(1997), random copolymers as described by C. J. Hawker in Macromolecules 1996, 29, 2686-2688, or diblock and triblock copolymers as described by N. A. Listigovers in Macromolecules 1996, 29, 8992-8993.
-
- wherein
- n is 1 or 2;
-
- wherein R20 is hydrogen or (C1-C4)alkyl, R21 is hydrogen, C1-C4alkyl or phenyl and R22 is C1-C12alkyl which is unsubstituted or substituted by OH or N(R20)(R21) or which is interrupted by O or NR20;
- if n is 1
- Y and Y′ are independently C1-C12alkyl, C3-C12alkenyl, C3-C12alkinyl, C5-C8cycloalkyl, phenyl, naphthyl, C7-C9phenylalkyl; or
- Y and Y′ together form one of the bivalent groups —C(R1)(R2)—CH(R3)—, CH(R1)—CH2—C(R2)(R3)—,
-
- wherein
- R1 is hydrogen, C1-C12alkyl, COOH, COO—(C1-C12)alkyl or CH2OR4;
- R2 and R3 are independently hydrogen, methyl ethyl, COOH or COO—(C1-C12)alkyl;
- R4 is hydrogen, C1-C12alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms;
- if n is 2
-
- Q is a bisacyl residue which is derived from a C2-C12dicarboxylic acid or C1-C12alkylene; and
-
- The definitions and preferrences given above apply also for the compounds.
- The preparation of the compounds of the present invention is carried out according to known reaction steps. A general method for the preparation of the compounds of formula Ia, IIa, and IIIa starts from the 4-oxo compounds Xa or XIa which are described in GB 2335190 or from XIIa which is a known compound described for example in DE 2352127.
- These starting compounds are reacted for example with suitable monoalcohols, diols or tetrafunctional alcohols to form intermediates of formula Xb, XIb or XIIb wherein Y, Y′ and n are as defined above. Such ketalization reactions are well known in the art and the corresponding compounds are mostly known. The reaction is for example described in U.S. Pat. No. 3,790,525, U.S. Pat. No. 3,899,464, U.S. Pat. No. 4,007,158 and U.S. Pat. No. 4,105,626.
-
- The nitroxides are then coupled with a compound of formula HX under oxidative conditions. Suitable radicals X are as defined above. This coupling reaction is descriebed for example in GB 2335190. Preferably the coupling reaction is carried out in the presence of a Cu(II) salt according to the method described in International Application No. PCT/EP01/05668.
- These nitroxides can also be used as polymerization regulators in combination with a source of free radicals.
- A further subject of the invention is therefore a polymerizable composition, comprising
- a) at least one ethylenically unsaturated monomer or oligomer;
-
- wherein
- n is 1 or 2;
- if n is 1
- Y and Y′ are independently C1-C12alkyl, C3-C12alkenyl, C3-C12alkinyl, C5-C8cycloalkyl, phenyl, naphthyl, C7-C9phenylalkyl; or
- Y and Y′ together form one of the bivalent groups —C(R1)(R2)—CH(R3)—, CH(R1)—CH2—C(R2)(R3)—,
-
- wherein
- R1 is hydrogen, C1-C12alkyl, COOH, COO—(C1-C12)alkyl or CH2OR4;
- R2 and R3 are independently hydrogen, methyl ethyl, COOH or COO—(C1-C12)alkyl;
- R4 is hydrogen, C1-C12alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms;
- if n is 2
-
- Q is a bisacyl residue which is derived from a C2-C12dicarboxylic acid or C1-C12alkylene; and
- Z is C1-C12alkylene; and
- c) a source of free radicals capable of initiating polymerization of ethylenically unsaturated monomers.
- Preferred is a polymerizable composition wherein in the compound of formula Ib or IIb
- n is 1
- Y and Y′ are independently C1-C12alkyl, C3-C12alkenyl, ph nyl or benzyl; or
- Y and Y′ together form one of the bivalent groups —C(R1)(R2)—CH(R3)—, CH(R1)—CH2—C(R2)(R3)—, —CH(R2)—CH2—C(R1)(R3)—, —CH2—C(R1)(R2)—CH(R3)—, —CH2—CH═CH—CH2— or; wherein
- R1 is hydrogen, C1-C12alkyl, COO—(C1-C12)alkyl or CH2OR4;
- R2 and R3 are independently hydrogen, methyl ethyl, or COO—(C1-C12)alkyl;
- R4 is hydrogen, C1-C12alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 12 carbon atoms.
- Specific nitroxide compounds useful in the present invention are given in Tables 4 and 5.
TABLE 4 Compounds according to formula (Ib) 1 2,6-Diethyl-4,4-dimethoxy- 2,3,6-trimethyl-piperidin-1- oxyl 2 4,4-Diethoxy-2,6-diethyl- 2,3,6-trimethyl-piperidin-1- oxyl 3 2,6-Diethyl-2,3,6-trimethyl- 4,4-dipropoxy-piperidin-1- oxyl 4 4,4-Dibutoxy-2,6-diethyl- 2,3,6-trimethyl-piperidin-1- oxyl 5 2,6-Diethyl-4,4- diisobutoxy-2,3,6- trimethyl-piperidin-1-oxyl 6 2,6-Diethyl-2,3,6-trimethyl- 4,4-bis-octyloxy-piperidin-1- oxyl 7 4,4-Bis-allyoxy-2,6-diethyl- 2,3,6-trimethyl-piperidin-1- oxyl 8 4,4-Bis-cyclohexyl-2,6- di thyl-2,3,6-trimethyl- piperidin-1-oxyl 9 4,4-Bis-benzyloxy-2,6- diethyl-2,3,6-trimethyl- piperidin-1-oxyl 10 7,9-Diethyl-6,7,9-trimethyl- 1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 11 7,9-Diethyl-2,6,7,9- tetramethyl-1,4-dioxa-8- aza-spiro[4.5]decane-8-oxyl 12 2,7,9-Triethyl-6,7,9- trimethyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 13 7,9-Diethyl-6,7,9-trimethyl- 2-propyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 14 2-Butyl-7,9-diethyl-6,7,9- trimethyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 15 7,9-Diethyl-6,7,9-trimethyl- 2-oxyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 16 2-Decyl-7,9-diethyl-6,7,9- trimethyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 17 2-Dodecyl-7,9-diethyl- 6,7,9-trimethyl-1,4-dioxa- 8-aza-spiro[4.5]decan-8- oxyl 18 7,9-Diethyl-2- hydroxymethyl-6,7,9- trimethyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 19 Acetic acid 7,9-diethyl- 6,7,9-trimethyl-1,4-dioxa-8- aza-spiro[4.5]dec-2- ylmethyl ester-8-oxyl 20 Octadecanoic acid 7,9- diethyl-6,7,9-trimethyl-1,4- dioxa-8-aza-spiro[4.5]dec- 2-ylmethyl ester-8-oxyl 21 Benzoic acid 7,9-diethyl- 6,7,9-trimethyl-1,4-dioxa-8- aza-spiro[4.5]dec-2- ylmethyl ester-8-ixyl 22 7,9-Diethyl-2- methoxymethyl-6,7,9- trimethyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 23 2-Cyclohexyloxymethyl- 7,9-diethyl-6,7,9-trimethyl- 1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 24 2-Benzyloxymethyl-7,9- diethyl-6,7,9-trimethyl-1,4- dioxa-8-aza- spiro[4.5]decan-8-oxyl 25 Octanedoic acid bis-(7,9- diethyl-8-oxyl-6,7,9- trimethyl-1,4-dioxa-8-aza- spiro[4.5]dec-2-ylmdethyl) ester 26 Terephthalic acid bis-(7,9- diethyl-8-oxyl-6,7,9- trimethyl-1,4-dioxa-8-aza- spiro[4.5]dec-2-ylmethyl) ester 27 1,4-Bis-{[7,9-diethyl-6,7,9- trimethyl-8-oxyl-1,4-dioxa- 8-aza-spiro[4.5]dec-2-yl]- methyloxy}-butane 28 7,9-Diethyl-2,2,6,7,9- pentamethyl-1,4-dioxa-8- aza-spiro[4.5]decan-8-oxyl 29 7,9-Diethyl-2,3,6,7,9- pentamethyl-1,4-dioxa-9- aza-spiro[4.5]decan-8-oxyl 30 2,3-Benzo-7,9-diethyl- 6,7,9-trimethyl-8-oxyl-1,4- dioxa-8-aza- spiro[4.5]decane 31 2,3-Cyclohexano-7,8,10- trimethyl-1,5-dioxa-9-aza- spiro[5.5]undecan-9-oxyl 32 7,9-Diethyl-6,7,9-trimethyl- 1,4-dioxa-8-aza- spiro[4.5]decane-2,3- dicarboxylic acid-8-oxyl 33 7,9-Diethyl-6,7,9-trimethyl- 1,4-dioxa-8-aza- spiro[4.5]decane-2,3- dicarboxylic acid dimethyl ester-8-oxyl 34 8,10-Diethyl-7,8,10- trimethyl-1,5-dioxa-9-aza- spiro[5.5]undecan-9-oxyl 35 8,10-Diethyl-3,3,7,8,10- pentamethyl-1,5-dioxa-9- aza-spiro[5.5]undecan-9- oxyl 36 3,8,10-Triethyl-3,7,810- tetramethyl-1,5-dioxa-9- aza-spiro[5.5]undecan-9- oxyl 37 3,3,8,10-Tetramethyl-7,8,10- trimethyl-1,5-dioxa-9-aza- spiro[5.5]undecan-9-oxyl 38 8,10-Diethyl-3,7,8,10- tetramethyl-3-propyl-1,5- dioxa-9-aza- spiro[5.5]undecan-9-oxyl 39 3-Butyl-3,8,10-triethyl- 7,8,10-trimethyl-1,5-dioxa- 9-aza-spiro[5.5]undecan-9- oxyl 40 2,4-Diethyl-1,2,4-trimethyl- 7,16-dioxa-3-aza- dispiro[5.2.5.2]hexadec-11- en-3-oxyl 41 8,10-Diethyl-3- hydroxymethyl-3,7,8,10- tetramethyl-1,5-dioxa-9- aza-spiro[5.5]undecan-9- oxyl 42 3,8,10-Triethyl-3- hydroxymethyl-7,8,10- trimethyl-1,5-dioxa-9-aza- spiro[5.5]undecan-9-oxyl 43 8,10-Diethyl-3- methoxymethyl-3,7,8,10- tetramethyl-1,5-dioxa-9- aza-spiro[5.5]undecan-9- oxyl 44 3-Cyclohexyloxymethyl- 8,10-diethyl-3,7,8,10- tetramethyl-1,5-dioxa-9- aza-spiro[5.5]undecan-9- oxyl 45 3-Benzyloxymethyl-8,10- diethyl-3,7,8,10- tetramethyl-1,5-dioxa-9- aza-spiro[5.5]undecan-9- oxyl 46 Acetic acid 8,10-diethyl- 3,7,8,10-tetramethyl-1,5- dioxa-9-aza- spiro[5.5]undec-3-ylmethyl ester-9-oxyl 47 Octandioic acid bis- (8,10-diethyl-9-oxyl- 3,7,8,10-tetramethyl-1,5- dioxa-9-aza- spiro[5.5]undec-3- ylmethyl) ester 48 1,6-Bis{3,8,10-triethyl- 7,8,10-trimethyl-9-oxyl-1,5- dioxa-9- azaspiro[5.5]undec-3- methyloxy}-hexane 49 8,10-Diethyl-3,7,8,10- tetramethyl-1,5-dioxa-9- aza-spiro[5.5]undecane-3- carboxylic acid-9-oxyl 50 8,10-Diethyl-3,7,8,10- tetramethyl-1,5-dioxa-9- aza-spiro[5.5]undecane-3- carboxylic acid methyl ester-9-oxyl 51 8,10-Diethyl-7,8,10- trimethyl-1,5-dioxa-9-aza- spiro[5.5]undecane-3,3- dicarboxylic acid diethyl ester-9-oxyl 52 3,3-Bisspiro-{8,10-diethyl- 7,8,10-trimethyl-9-oxyl-1,5- dioxa-9-aza- spiro[5.5]undecane} 53 2,4-Diethyl-1,2,4-trimethyl- 7,12-dioxa-3-aza- spiro[5.6]dodec-9-en-3- oxyl 54 Acetic acid 3,8,10-triethyl- 7,8,10-trimethyl-1,5-dioxa- 9-aza-spiro[5.5]undec-3-yl- methyl ester-9-oxyl 55 Octadecanoic acid 3,8,10- triethyl-7,8,10-trimethyl-1,5- dioxa-9-aza-spiro[5.5]un- dec-3-ylmethyl ester-9-oxyl -
TABLE 5 Compounds according to formula (IIb) 1 2,2-Diethyl-4,4-dimethoxy- 6,6-dimethyl-piperidin-1- oxyl 2 4,4-Diethoxy-2,2-diethyl- 6,6-dimethyl-piperidin-1- oxyl 3 2,2-Diethyl-6,6-dimethyl-4,4- dipropoxy-piperidin-1-oxyl 4 4,4-Dibutoxy-2,2-diethyl- 6,6-dimethyl-piperidin-1- oxyl 5 2,2-Diethyl-4,4-diisobutoxy- 6,6-dimethyl-piperidin-1- oxyl 6 2,2-Diethyl-6,6-dimethyl-4,4- bis-octyloxy-piperidin-1-oxyl 7 4,4-Bis-allyloxy-2,2-diethyl- 6,6-dimethyl-piperidin-1- oxyl 8 4,4-Bis-cyclohexyloxy-2,2- diethyl-6,6-dimethyl- piperidin-1-oxyl 9 4,4-Bis-benzyloxy-2,2- diethyl-6,6-dimethyl- piperidin-1-oxyl 10 7,7-Diethyl-9,9-dimethyl- 1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 11 7,7-Diethyl-2,9,9-trimethyl- 1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 12 2,7,7-Triethyl-9,9-dimethyl- 1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 13 7,7-Diethyl-9,9-dimethyl-2- propyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 14 2-Butyl-7,7-diethyl-9,9- dimethyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 15 7,7-Diethyl-9,9-dimethyl-2- octyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 16 2-Decyl-7,7-diethyl-9,9- dimethyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 17 2-Dodecyl-7,7-diethyl-9,9- dimethyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 18 7,7-Diethyl-2-hydroxymethyl- 9,9-dimethyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 19 Acetic acid 7,7-diethyl-9,9- dimethyl-1,4-dioxa-8-aza- spiro[4.5]dec-2-ylmethyl ester-8-oxyl 20 Octadecanoic acid 7,7- diethyl-9,9-dimethyl-1,4- dioxa-8-aza-spiro[4.5]dec- 2-ylmethyl ester-8-oxyl 21 Benzoic acid 7,7-diethyl-9,9- dimethyl-1,4-dioxa-8-aza- spiro[4.5]dec-2-ylmethyl ester-8-oxyl 22 7,7-Diethyl-2- methoxymethyl-9,9- dimethyl-1,4-dioxa-8-aza- spiro[4.5]decan-8-oxyl 23 2-Cyclohexyloxymethyl-7,7- diethyl-9,9-dimethyl-1,4- dioxa-8-aza- spiro[4.5]decan-8-oxyl 24 2-Benzyloxymethyl-7,7- diethyl-9,9-dimethyl-1,4- dioxa-8-aza-spiro[4.5]decan- 8-oxyl 25 Octanedioic acid bis(7,7- diethyl-8-oxyl-9,9-dimethyl- 1,4-dioxa-8-aza- spiro[4.5]dec-2-ylmethyl)_ ester 26 Terephthalic acid bis-(7,7- diethyl-8-oxyl-9,9-dimethyl- 1,4-dioxa-8-aza- spiro[4.5]dec-2-ylmethyl) ester 27 1,4-Bis-{[7,7-diethyl-9,9- dimethyl-8-oxyl-1,4-dioxa-8- aza-spiro[4.5]dec-2-yl]- methyloxy}-butane 28 7,7-Diethyl-2,2,9,9- tetramethyl-1,4-dioxa-8- aza-spiro[4.5]decan-8-oxyl 29 7,7-Diethyl-2,3,9,9- tetramethyl-1,4-dioxa-8- aza-spiro[4.5]decan-8-oxyl 30 2,3-Benzo-7,7-diethyl-9,9- dimethyl-8-oxyl-1,4-dioxa-8- aza-spiro[4.5]decane 31 2,3-Cyanohexano-7,7- diethyl-9,9-dimethyl-8-oxyl- 1,4-dioxa-8-azaspiro [4.5]decane 32 7,7-Diethyl-9,9-dimethyl- 1,4-dioxa-8-aza- spiro[4.5]decane-2,3- dicarboxylic acid-8-oxyl 33 7,7-Diethyl-9,9-dimethyl-1,4- dioxa-8-aza- spiro[4.5]decane-2,3- dicarboxylic acid dimethyl ester-8-oxyl 34 8,8-Diethyl-10,10-dimethyl- 1,5-dioxa-9-aza- spiro[5.5]undecan-9-oxyl 35 8,8-Diethyl-3,3,10,10- tetramethyl-1,5-dioxa-9- aza-spiro[5.5]undecan-9- oxyl 36 3,8,8-Triethyl-3,10,10- trimethyl-1,5-dioxa-9-aza- spiro[5.5]undecane-9-oxyl 37 3,3,8,8-Tetraethyl-10,10- dimethyl-1,5-dioxa-9-aza- spiro[5.5]undecan-9-oxyl 38 8,8-Diethyl-3,10,10- trimethyl-3-propyl-1,5- dioxa-9-aza- spiro[5.5]undecan-9-oxyl 39 3-Butyl-3,8,8-triethyl-10,10- dimethyl-1,5-dioxa-9-aza- spiro[5.5]undecan-9-oxyl 40 2,2-Diethyl-4,4-dimethyl- 7,16-dioxa-3-aza- dispiro[5.2.5.2]hexadec-11- en-3-oxyl 41 8,8-Diethyl-3- hydroxymethyl-3,10,10- trimethyl-1,5-dioxa-9-aza- spiro[5.5]undecan-9-oxyl 42 3,8,8-Triethyl-3- hydroxymethyl-10,10- dimethyl-1,5-dioxa-9-aza- spiro[5.5]undecan-9-oxyl 43 8,8-Diethyl-3- methoxymethyl-3,10,10- trimethyl-1,5-dioxa-9-aza- spiro[5.5]undecan-9-oxyl 44 3-Cyclohexyloxymethyl-8,8- diethyl-3,10,10-trimethyl- 1,5-dioxa-9-aza- spiro[5.5]undecan-9-oxyl 45 3-Benzyloxymethyl-8,8- diethyl-3,10,10-trimethyl-1,5- dioxa-9-aza- spiro[5.5]undecan-9-oxyl 46 Acetic acid 8,8-diethyl- 3,10,10-trimethyl-1,5-dioxa- 9-aza-spiro[5.5]undec-3- ylmethyl ester-9-oxyl 47 Octanedioic acids bis-(8,8- diethyl-9-oxyl-3,10,10- trimethyl-1,5-dioxa-9-aza- spiro[5.5]undec-3-ylmethyl) ester 48 1,6-Bis{[3,8,8-triethyl-10,10- dimethyl-9-oxyl-1,5-dioxa-9- aza-spiro[5.5]undec-3-yl]- methyloxy}-hexane 49 8,8-Diethyl-3,10,10- trimethyl-1,5-dioxa-9-aza- spiro[5.5]undecane-3- carboxylic acid-9-oxyl 50 8,8-Diethyl-3,10,10- trimethyl-1,5-dioxa-9-aza- spiro[5.5]undecane-3- carboxylic acid methyl ester-9-oxyl 51 8,8-Diethyl-10,10-dimethyl- 1,5-dioxa-9-aza- spiro[5.5]undecane-3,3- dicarboxylic acid diethyl ester-9-oxyl 52 3,3-Bisspiro{8,8-diethyl- 10,10-dimethyl-9-oxyl-1,5- dioxa-9-aza- spiro[5.5]undecane} 53 2,2-Diethyl-4,4-dimethyl- 7,12-dioxa-3-aza- spiro[5.6]dodec-9-en-3-oxyl - The compounds of Table 4, and 5 are particularly preferred.
-
-
-
-
-
-
-
-
- 8,10-Diethyl-3-hydroxymethyl-3,7,8,10-tetramethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl (Tab. 4, No.41)
- The source of radicals may be a bis-azo compound, a peroxide or a hydroperoxide.
- The production of C-centered radicals is described, inter alia, in Houben Weyl, Methoden der Organischen Chemie, Vol. E 19a, pages 60-147. These methods can be applied in general analogy.
- Preferably, the source of radicals is 2,2′-azobisisobutyronitrile, 2,2′-azobis(2-methyl-butyronitrile), 2,2′-azobis(2,4-dimethylvaleronitrile), 2,2′-azobis(4-methoxy-2,4-dimethylvaleronitrile), 1,1′-azobis(1-cyclohexanecarbonitrile), 2,2′-azobis(isobutyramide) dihydrate, 2-phenylazo-2,4-dimethyl-4-methoxyvaleronitrile, dimethyl-2,2′-azobisisobutyrate, 2-(carbamoylazo)isobutyronitrile, 2,2′-azobis(2,4,4-trimethylpentane), 2,2′-azobis(2-methylpropane), 2,2′-azobis(N,N′-dimethyleneisobutyramidine), free base or hydrochloride, 2,2′-azobis(2-amidinopropane), free base or hydrochloride, 2,2′-azobis{2-methyl-N-[1,1-bis(hydroxymethyl)ethyl]propionamide} or 2,2′-azobis{2-methyl-N-[1,1-bis(hydroxymethyl)-2-hydroxyethyl]propionamide.
- Preferred peroxides and hydroperoxides are acetyl cyclohexane sulphonyl peroxide, diisopropyl peroxy dicarbonate, t-amyl perneodecanoate, t-butyl perneodecanoate, t-butyl perpivalate, t-amylperpivalate, bis(2,4-dichlorobenzoyl)peroxide, diisononanoyl peroxide, didecanoyl peroxide, dioctanoyl peroxide, dilauroyl peroxide, bis (2-methylbenzoyl) peroxide, disuccinic acid peroxide, diacetyl peroxide, dibenzoyl peroxide, t-butyl per 2-ethylhexanoate, bis-(4-chlorobenzoyl)-peroxide, t-butyl perisobutyrate, t-butyl permaleinate, 1,1-bis(t-butylperoxy)3,5,5-trimethylcyclohexane, 1,1-bis(t-butylperoxy)cyclohexane, t-butyl peroxy isopropyl carbonate, t-butyl perisononaoate, 2,5-dimethylhexane 2,5-dibenzoate, t-butyl peracetate, t-amyl perbenzoate, t-butyl perbenzoate, 2,2-bis (t-butylperoxy) butane, 2,2 bis (t-butylperoxy) propane, dicumyl peroxide, 2,5-dimethylhexane-2,5-di-t-butylperoxide, 3-t-butylperoxy 3-phenylphthalide, di-t-amyl peroxide, α,α′-bis(t-butylperoxy isopropyl) benzene, 3,5-bis (t-butylperoxy)3,5-dimethyl 1,2-dioxolane, di-t-butyl peroxide, 2,5-dimethylhexyne-2,5-di-t-butylperoxide, 3,3,6,6,9,9-hexamethyl 1,2,4,5-tetraoxa cyclononane, p-menthane hydroperoxide, pinane hydroperoxide, diisopropylbenzene mono-α-hydroperoxide, cumene hydroperoxide or t-butyl hydroperoxide.
- These compounds are commercially available.
- If more than one radical source is used, a mixture of substitution patterns is obtainable.
- The radical source is preferably present in an amount of from 0.01 mol-% to 30 mol-%, more preferred in an amount of from 0.1 mol-% to 20 mol-% and most preferred in an amount of from 0.5 mol-% to 10 mol-% based on the monomer or monomer mixture.
- Preferably the nitroxyl compound is present in an amount of from 0.01 mol-% to 20 mol-%, more preferably in an amount of from 0.01 mol-% to 10 mol-% and most preferred in an amount of from 0.05 mol-% to 10 mol-% based on the monomer or monomer mixture.
- The molar ratio of the radical source to the compound of formulae Ib, IIb or IIIb may be from 1:10 to 10:1, preferably from 1:5 to 5:1 and more preferably from 1:2 to 2:1.
- Still another subject of the present invention is a process for preparing an oligomer, a cooligomer, a polymer or a copolymer (block or random) by free radical polymerization of at l ast one ethylenically unsaturated monomer/oligomer, which comprises subjecting the above composition to heat or actinic radiation.
- The composition is preferably subjected to heat from 90° C. to 160° C.
-
- wherein
- n is 1 or 2;
- if n is 1
- Y and Y′ are independently C1-C12alkyl, C3-C12alkenyl, C3-C12alkinyl, C5-C8cycloalkyl, phenyl, naphthyl, C7-C9phenylalkyl; or
-
- wherein
- R1 is hydrogen, C1-C12alkyl, COOH, COO—(C1-C12)alkyl or CH2OR4;
- R2 and R3 are independently hydrogen, methyl ethyl, COOH or COO—(C1-C12)alkyl;
- R4 is hydrogen, C1-C12alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms;
- if n is 2
-
- Q is a bisacyl residue which is derived from a C2-C12dicarboxylic acid or C1-C12alkylene; and
-
- are excluded.
- Yet another subject of the invention is a polymer or oligomer, having attached at least one oxyamine group derived from formula Ia, IIa or IIIa.
- The polymers or oligomers can also be termed macroinitiators. They can be used to start polymerization for example with a second monomer which then results in the formation of a block copolym r as already described above.
- Further subjects of the invention are the use of a compound of formulae Ia, IIa or IIIa for the polymerization of ethylenically unsaturated monomers and the use of a compound of formulae Ib or IIb together with a source of free radicals for the polymerization of an ethylenically unsaturated monomer.
- Definitions and preferences for the various substituents have already been mentioned. They apply also for the other subjects of the invention including the preferences and the individual compounds.
- The following examples illustrate the invention.
-
- The compound is prepared according to U.S. Pat. No. 4,105,626 (example 5).
-
- The title compound is prepared by oxidising 7,9-diethyl-2-hydroxymethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan, prepared according to U.S. Pat. No. 4,105,626. A red oil is obtained. Elemental analysis for C15H28NO4 calculated: C, 62.91%; H, 9.85%; N, 4.89%; found: C, 62.83%; H, 9.83%; N, 4.75%.
-
- The title compound is prepared by oxidising 7,9-diethyl-2-hydroxymethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan, prepared according to U.S. Pat. No. 4,105,626. A red oil is obtained. Elemental analysis for C15H28NO4 calculated: C, 68.42%; H, 10.81; N, 4.69; found: C, 68.21%; H, 10.66%; N, 4.63%.
-
- To a solution of 10.3 g (0.04 mol) 7,9-diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl (Table 2, compound 10) in 40 ml ethylbenzene 8.3 ml (0.06 mol) 70% t-butyl-hydroperoxide in water and 0.7 ml of a catalyst solution (containing 13.44 g CuCl2 and 4.24 g LiCl in 153 ml ethanol) are added. The mixture is stirred at 65° C. until it is colorless (approximately 90 minutes). After cooling to room temperature 25 ml water and 5 g Na2S2O5 are added and the mixture is vigorously stirred for 10 minutes. The organic phase is separated, washed with H2O and the remaining ethylbenzene is evaporated. The residue chromatographically purified (SiO2 hexane-ethylacetate (19:1)) and 10.3 g of the title compound is obtained as colorless oil. Elemental analysis for C22H35NO3 calculated: C, 73.09%; H, 9.76%; N, 3.87%; found: C, 72.95%; H, 9.79%; N, 3.68%.
-
- The title compound is prepared in analogy to exampla A4 from 7,9-diethyl-2-hydroxymethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl (Table 4, compound 18). Colorless oil,1H-NMR(CDCl3, 300 MHz, d ppm): 7.4-7.1 m, (5 ArH), 4.7-4.55 m (1H), 4.3-3.55 m (5H), 2.1-0.5 m (26H).
-
- The title compound is prepared in analogy to example A4 from 8,10-diethyl-3,3,7,8,10-pentamethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl (Table 4, compound 35). Colorless oil. Elemental analysis for C25H41NO3 calculated: C, 74.40%; H, 10.24%; N, 3.47%; found: C, 74.19%; H, 10.43%; N, 3.43%.
-
- The title compound is prepared in analogy to Example A1 by oxidizing (3,8,10-triethyl-7,8,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undec-3-yl)-methanol (prepared as described in U.S. Pat. No. 4,105,626) as a red oil. GC-MS: narrow bundle of 4 peaks (diastereomers) with M+=328 (C18H34NO4=328.48).
-
- The title compound is prepared in analogy to Exampl A1 by oxidizing acetic acid 3,8,10-triethyl-7,8,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undec-3-yl-methyl ester (prepared in analogy to U.S. Pat. No. 4,105,626, Example 4) as a red oil.
-
- The title compound is prepared in analogy to Example 1 by oxidizing octadecanoic acid 3,8,10-triethyl-7,8,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undec-3-yl-methyl ester (prepared in analogy to U.S. Pat. No. 4,105,626, Example 4) as a red oil. MS (Cl): MH+=595 (C36H88NO5=594.95).
-
- The title compound is prepared in analogy to Example A1 by oxidizing acetic acid 7,9-diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-yl-methyl ester (prepared as described in U.S. Pat. No. 4,105,626, Example 4) as a red oil. GC-MS: narrow bundle of 6 peaks (diastereomers) with M+=328 (C17H30NO5=328.43).
-
- To a stirred mixture of 89.54 g (0.3 mol) 8,10-diethyl-3,3,7,8,10-pentamethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl (Tab. 4, Nr. 35), 43.04 (0.3 mol) copper (I) bromide, 19.06 (0.3 mol) copper powder and 103.9 g (0.6 mol) pentamethyl-ethylene-triamine in 500 ml toluene are added dropwis within 30 minutes and under nitrogen 59.1 g (0.3 mol) 2-bromopropionic acid-2-hydroxyethylester. The mixture is stirred at rt for 17 h and then filtered. The filtrate is washed with water (3×500 ml) and th n with a solution of EDTA (300 ml, 1%). The organic layer is dried over Na2SO4 and then evaporated to afford 122.8 g (98.5%) of the title compound as a slightly yellow oil.
-
- B) Polymerizations with n-butylacrylate Using Compounds of Formulae Ia, IIa or IIIa as Initiators/Regulators
- General Remarks:
- Solvents and monomers are distilled over a Vigreux column under argon atmosphere or under vacuum, shortly before being used.
- To remove oxygen all polymerization reaction mixtures are flushed before polymerization with argon and evacuated under vaccum applying a freeze-thaw cycle. The reaction mixtures are then polymerized under argon atmosphere.
- At the start of the polymerization reaction, all starting materials are homogeneously dissolved.
- Conversion is determined by removing unreacted monomers from the polymer at 80° C. and 0.002 torr for 30 minutes, weighing the remaining polymer and subtract the weight of the initiator.
- Characterization of the polymers is carried out by MALDI-MS (Matrix Assisted Laser Desorption Ionization Mass Spectrometry) and/or GPC (Gel Permeation Chromatography).
- MALDI-MS: Measurements are performed on a linear TOF (Time Of Flight) MALDI-MS LDI-1700 Linear Scientific Inc., Reno, USA. The matrix is 2,5-dihydroxybenzoic acid and the laser wavelength is 337 nm.
- GPC: Is performed using RHEOS 4000 of FLUX INSTRUMENTS. Tetrahydrofurane (THF) is us d as a solvent and is pumped at 1 ml/min. Two chromatography columns ar put in series: type Plgel 5 μm mixed-C of POLYMER INSTRUMENTS, Shropshire, UK. Measurements are performed at 40° C. The columns are calibrated with low polydispersity polystyrenes having Mn from 200 to 2 000 000 Dalton. Detection is carried out using a RI-Detector ERC-7515A of ERCATECH AG at 30° C.
- Polymerization of n-butylacrylate with Compound 10, Table 1 (Example A4) at 145° C.
- In a 50 ml three neck flask, equipped with thermometer, cooler and magnetic stirrer, 644 mg (1.78 mmol) of compound 10, Table 1 and 15 g (117 mmol) of n-butylacrylate are mixed and degased. The clear solution obtained is heated under argon to 145° C. and polymerization is carried out during 5 h. The reaction mixture is then cooled to 60° C. The remaining monomer is removed by evaporation under high vacuum. 11.1 g (74%) of the initial monomer have reacted. A clear yellow viscous fluid is obtained.
- Mn=6460, Mw=8280, PD=1.28
- Polymerization of n-butylacrylate with Compound 35, Table 1 (Example A6) at 145° C.
- In a 50 ml three neck flask, equipped with thermometer, cooler and magnetic stirrer, 718 mg (1.78 mmol) of compound 35, Table 1 and 15 g (117 mmol) of n-butylacrylate are mixed and degased. The clear solution obtained is heated under argon to 145° C. and polymerization is carried out during 5 h. The reaction mixture is then cooled to 60° C. The remaining monomer is removed by evaporation under high vacuum. 12.3 g (82%) of the initial monomer have reacted. A clear yellow viscous fluid is obtained.
- Mn=6630, Mw=8450, PD=1.27
- Polymerization of n-butylacrylate with Compound 18, Table 1 (Example A5) at 145° C.
- In a 50 ml three neck flask, equipped with thermometer, cooler and magnetic stirrer, 679 mg (1.78 mmol) of compound 18, Table 1 and 15 g (117 mmol) of n-butylacrylate are mixed and degased. The clear solution obtained is heated under argon to 145° C. and polymerization is carried out during 5 h. The reaction mixture is then cooled to 60° C. The remaining monomer is removed by evaporation under high vacuum. 12.37 g (82.5%) of the initial monomer have reacted. A clear yellow viscous fluid is obtained.
- Mn=7000, Mw=9000, PD=1.29
- Preparation of a Block Copolym r from n-butylacrylat and N,N-dim thylaminoethylacrylat (DMAEA) Using Compound 10, Table 1
- 1) Preparation of Poly-n-butylacrylate
- In a 50 ml three neck flask, equipped with thermometer, cooler and magnetic stirrer, 644 mg (1.78 mmol) of compound 10, Table 1 and 15 g (117 mmol) of n-butylacrylate are mixed and degased. The clear solution obtained is heated under argon to 145° C. and polymerization is carried out during 5 h. The reaction mixture is then cooled to 60° C. The remaining monomer is removed by evaporation under high vacuum. 11.1 g (74%) of the initial monomer have reacted. A yellow viscous fluid is obtained.
- Mn=5700, Mw=8050, PD=1.41
- 2) Preparation of a Block Copolymer with DMAEA
- In a 50 ml three neck flask, equipped with thermometer, cooler and magnetic stirrer, 6.5 g of the above poly(n-butylacrylate and 6.5 g (45.5 mmol) N,N-dimethylaminoethylacrylate are mixed and degased. The clear solution obtained is heated under argon to 145° C. and polymerization is carried out during 3 h. The reaction mixture is then cooled to 70° C. The remaining monomer is removed by evaporation under high vacuum. 1. g (15%) of the monomer have reacted. A yellow/brownish viscous fluid is obtained.
- Composition (NMR): 87 weight-% butylacrylat/13 weight-% N,N-dimethylaminoethylacrylat Mn=5700, Mw=8170, PD=1.43
- Preparation of a Block Copolymer from n-butylacrylat and N,N-dimethyl-aminoethylacrylat (DMAEA) Using Compound 35, Table 1
- 1) Preparation of Poly-n-butylacrylate
- In a 50 ml three neck flask, equipped with thermometer, cooler and magnetic stirrer, 718 mg (1.78 mmol) of compound 35, Table 1 and 15 g (117 mmol) of n-butylacrylate are mixed and degased. The clear solution obtained is heated under argon to 145° C. and polymerization is carried out during 5 h. The reaction mixture is then cooled to 60° C. The remaining monomer is removed by evaporation under high vacuum. 12.3 g (82%) of the initial monomer have reacted. A clear yellow viscous fluid is obtained.
- Mn=6170, Mw=8300, PD=1.34
- 2) Preparation of a Block Copolymer with DMAEA
- In a 50 ml three neck flask, equipped with thermometer, cooler and magnetic stirrer, 6.5 g of the above poly(n-butylacrylate and 5 g (35 mmol) N,N-dimethylaminoethylacrylate are mixed and degased. The clear solution obtained is heated under argon to 145° C. and polymerization is carried out during 3 h. The reaction mixture is then cooled to 70° C. The remaining monomer is removed by evaporation under high vacuum. 1. g (22%) of the monomer have reacted. A yellow/brownish viscous fluid is obtained.
- Composition (NMR): 82 weight-% butylacrylat/18 weight-% N,N-dimethylaminoethylacrylat Mn=5700, Mw=8350, PD=1.46
- C) Polymerizations with Styrene Using Compounds of Formulae Ia, IIa or IIIa as Initiators/Regulators
- In an evacuated Schlenk tube, flushed with Argon and equipped with magnetic stirrer, the amount of nitroxylether given in Table 6 is added to 50 mol freshly distilled n-styrene under an Argon atmosphere. The Schlenk tube is closed and the remaining oxygen is removed in two freeze thaw cycles with liquid nitrogen. The tube is filled with Argon and heated to the temperatures given in Table 6 for 6 hours with stirring. The remaining monomer is removed under vacuum at room temperature. Drying is continued until constant weight of the residue. Molecular weight and distribution are determined using gel permeation chromatography with tetrahydrofurane and calibrated with polystyrene standards. The results are given in Table 6.
TABLE 6 Temp Amount of Conversion Mn Mw Exp. No. (° C.) regulator (%) (GPC) (GPC) Mw/Mn C0 130 1 mol % 82 7600 9500 1.24 C1 130 0.1 mol % 81 42700 62800 1.47 C2 120 1 mol % 165 6200 7400 1.19 C3 120 0.1 mol % 55 35000 47900 1.37 C4 110 1 mol % 40 3800 4700 1.25 C5 110 0.1 mol % 28 22700 28300 1.26 C6 100 1 mol % 20 1700 2800 1.65 C7 100 0.1 mol % 15 13100 17800 1.36 - 1 mol % corresponds to 8.72×10−2 mol NOR/I styr ne, 0.1 mol % corresponds to 8.72×10−3 mol NOR/I styrene.
-
- Polymerizations with Styrene Using Compounds of Formulae Ib, IIb and Dibenzoylperoxide (BPO) as Regulators/Initiators
- In an evacuated Schlenk tube, flushed with argon and equipped with magnetic stirrer, the amount of nitroxyl and BPO given in Table 7 is added to 50 mol freshly distilled n-styrene under an argon atmosphere. The Schlenk tube is closed and the remaining oxygen is removed in two freeze thaw cycles with liquid nitrogen. The tube is filled with argon and heated to the temperatures given in Table 7 for 6 hours with stirring. The remaining monomer is removed under vacuum at room temperature. Drying is continued until constant weight of the residue. Molecular weight and distribution are determined using gel permeation chromatography with tetrahydrofurane and calibrated with polystyrene standards. The results are given in Table 7.
TABLE 7 Exp. Temp Concen- Yield Mn Mn Mw Mw/ No. (° C.) trations (%) (calc) (GPC) (GPC) Mn C8 130 [NO·] = 44 5100 5300 6600 1.24 8.72 × 10−2 mol/l [BPO] = 6.7 × 10−2 mol/l C9 130 [NO·] = 47 5300 5400 7100 1.32 8.72 × 10−2 mol/l [BPO] = 6.7 × 10−2 mol/l C10 130 [NO·] = 77 81000 39000 55900 1.43 8.72 × 10−3 mol/l [BPO] = 6.7 × 10−3 mol/l C11 120 [NO·] = 43 45500 29400 38900 1.33 8.72 × 10−3 mol/l [BPO] = 6.7 × 10−3 mol/l -
- D. Blockcopolymerizations
- 20 grams of a styrene macroinitiator obtained by polymerizing styrene at 120° C. following the procedure as described in section C with a concentration of 0.05 mol % of compound 35 (Table 1) (molecular weight data see table) are dissolved in a glass autoclave in 1) 100 g styrene, 2) a mixture of 90 g of styrene and 30 g of acrylonitrile.
- The solutions are degassed by argon purge for 30 minutes and subsequently heated in an oil bath at 110° C. for 6 hours. The polymer is obtained by precipitation into a 10 fold excess of methanol and dried in vacuo to remove unreacted monomer until constant weight. Molecular weights were determined by GPC as described in section C. The shift in molecular weight from D 0 to experiments D1 und D2 (Table 8) clearly indicates the formation of a block copolymer and confirms the capability of reinitiation of polymers synthesized using the instant compounds.
TABLE 8 Yield of added Exp. # Comonomer(s) monomer(s) (%) Mn Mw Mw/Mn D 0 60400 108600 1.80 D 1 Styrene 45 96700 165600 1.71 D 2 Sty/AN 50 143900 258700 1.80
Claims (23)
1. A polymerizable composition, comprising
a) at least one ethylenically unsaturated monomer or oligomer, and
b) a compound of formula Ia, IIa or IIIa
wherein
n is 1 or 2;
X is selected from the group consisting of —CH2-phenyl, CH3CH-phenyl, (CH3)2C-phenyl, (C5-C6cycloalkyl)2CCN, (CH3)2CCN, —CH2CH═CH2, CH3CH—CH═CH2, 3-cyclohexenyl, 3-cyclopentenyl, (C1-C4alkyl)CR20—C(O)-phenyl, (C1-C4)alkyl-CR20—C(O)—(C1-C4)alkoxy, (C1-C4)alkyl-CR20—C(O)—(C1-C4)alkyl, (C1-C4)alkyl-CR20—C(O)—N-di(C1-C4)alkyl, (C1-C4)alkyl-CR20—C(O)—NH(C1-C4)alkyl, (C1-C4)alkyl-CR20—C(O)—NH2, and a group of formula
wherein R20 is hydrogen or (C1-C4)alkyl, R21 is hydrogen, C1-C4alkyl or phenyl and R22 is C1-C12alkyl which is unsubstituted or substituted by OH or N(R20)(R21) or which is interrupted by O or NR20;
if n is 1
Y and Y′ are independently C1-C12alkyl, C3-C12alkenyl, C3-C12alkinyl, C5-C8cycloalkyl, phenyl, naphthyl, C7-C9phenylalkyl; or
Y and Y′ together form one of the bivalent groups —C(R1)(R2)—CH(R3)—, CH(R1)—CH2—C(R2)(R3)—, —CH(R2)—CH2—C(R1)(R3)—, —CH2—C(R1)(R2)—CH(R3)—, o-phenylene, 1,2-cyclohexyliden,
—CH2—CH═CH—CH2— or
wherein
R1 is hydrogen, C1-C12alkyl, COOH, COO—(C1-C12)alkyl or CH2OR4;
R2 and R3 are independently hydrogen, methyl ethyl, COOH or COO—(C1-C12)alkyl;
R4 is hydrogen, C1-C12alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms;
2. A polymerizable composition according to claim 1 wherein the compound is of formula Ia or IIa.
3. A polymerizable composition according to claim 1
wherein in the compound of formula Ia, IIa or IIIa
X is selected from the group consisting of —CH2-phenyl, CH3CH-ph nyl, (CH3)2C-phenyl, (C5-C6cycloalkyl)2CCN, (CH3)2CCN, 3-cyclohexenyl and the other substituents are as defined in claim 1 .
4. A polymerizable composition according to claim 1
wherein in the compound of formula Ia, IIa or IIIa X is CH3CH-phenyl and the other substituents are as defined in claim 1 .
5. A polymerizable composition according to claim 1
wherein in the compound of formula Ia, IIa or IIIa
X is selected from the group consisting of —CH2-phenyl, CH3CH-phenyl, (CH3)2C-phenyl, (C5-C6cycloalkyl)2CCN, (CH3)2CCN, 3-cyclohexenyl,
n is 1
Y and Y′ are independently C1-C12alkyl, C3-C12alkenyl, C3-C12alkinyl, C5-C8cycloalkyl, phenyl, naphthyl, C7-C9phenylalkyl; or
Y and Y′ together form one of the bivalent groups —C(R1)(R2)—CH(R3)—, CH(R1)—CH2—C(R2)(R3)—, —CH(R2)—CH2—C(R1)(R3)—, —CH2—C(R1)(R2)—CH(R3)—, o-phenylene, 1,2-cyclohexyliden,
—CH2—CH═CH—CH2— or
wherein
R1 is hydrogen, C1-C12alkyl, COOH, COO—(C1-C12)alkyl or CH2OR4;
R2 and R3 are independently hydrogen, methyl ethyl, COOH or COO—(C1-C12)alkyl;
R4 is hydrogen, C1-C12alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms.
6. A polymerizable composition according to claim 5
wherein in the compound of formula Ia, IIa or IIIa
X is CH3CH-phenyl;
n is 1
Y and Y′ are independently C1-C12alkyl, C3-C12alkenyl, phenyl or benzyl; or
Y and Y′ together form one of the bivalent groups —C(R1)(R2)—CH(R3)—, CH(R1)—CH2—C(R2)(R3)—, —CH(R2)—CH2—C(R1)(R3)—, —CH2—C(R1)(R2)—CH(R3)—, —CH2—CH═CH—CH2— wherein
R1 is hydrogen, C1-C12alkyl, COO—(C1-C12)alkyl or CH2OR4;
R2 and R3 are independently hydrogen, methyl ethyl, or COO—(C1-C12)alkyl;
R4 is hydrogen, C1-C12alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 12 carbon atoms.
6. A polymerizable composition according to claim 1 wherein the compound of formula Ia or IIa is
1.) 2,6-Diethyl-4,4-dimethoxy-2,3,6-trimethyl-1-(1-phenyl-ethoxy)-piperidine
2.) 4,4-Diethoxy-2,6-diethyl-2,3,6-trimethyl-1-(1-phenyl-ethoxy)-piperidine
3.) 2,6-Diethyl-2,3,6-trimethyl-1-(1-phenyl-ethoxy)-4,4dipropoxy-piperidine
4.) 4,4-Dibutoxy-2,6-diethyl-2,3,6-trimethyl-1-(1-phenyl-ethoxy)-piperidine
5.) 2,6-Diethyl-4,4-diisobutoxy-2,3,6-trimethyl-1-(1-phenyl-ethoxy)-piperidine
6.) 2,6-Diethyl-2,3,6-trimethyl-4,4-bis-octyloxy-1-(1-phenyl-ethoxy)-piperidine
7.) 4,4-Bis-allyloxy-2,6-diethyl-2,3,6-trimethyl-1-(1-phenyl-ethoxy)-piperidine
8.) 4,4Bis-cyclohexyloxy-2,6-diethyl-2,3,6-trimethyl-1-(1-phenyl-ethoxy)-piperidine
9.) 4,4-Bis-benzyloxy-2,6diethyl-2,3,6-trimethyl-1-(1-phenyl-ethoxy)-piperidine
10.) 7,9-Diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
11.) 7,9-Diethyl-2,6,7,9-tetramethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
12.) 2,7,9-Triethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
13.) 7,9-Diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-2-propyl-1,4-dioxa-8-aza-spiro-[4.5]decane
14.) 2-Butyl-7,9-diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
15.) 7,9-Diethyl-6,7,9-trimethyl-2-octyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decan
16.) 2-Decyl-7,9-diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
17.) 2-Dodecyl-7,9-diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro-[4.5]decane
18.) [7,9-Diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]dec-2yl-]-methanol
19.) Acetic acid 7,9-diethyl-8-hydroxy-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl ester; compound with isopropyl-benzene
20.) Octadecanoic acid 7,9-diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl ester
21.) Benzoic acid 7,9-diethyl-8-hydroxy-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl ster; compound with isopropyl-benzene
22.) 7,9-Diethyl-2-methoxymethyl-6,7,9-trimethyl-8-(1-ph nyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
23.) 2-Cyclohexyloxymethyl-7,9-diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4dioxa-8-aza-spiro[4.5]decane
24.) 2-Benzyloxymethyl-7,9-diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
25.) Octanedioic acid bis-[7,9diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,dioxa-8-aza-spiro[4.5]dec-2-ylmethyl] ester
26.) Terephthalic acid bis-[7,9-diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl] ester
27.) 1,4-Bis-{[7,9-diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]dec-2-yl]-methyloxy}-butane
28.) 7,9-Diethyl-2,2,6,7,9-pentamethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
29.) 7,9-Diethyl-2,3,6,7,9-pentamethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
30.) 2,3-Benzo-7,9-diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
31.) 2,3-Cyclohexano-7,9-diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
32.) 7,9-Diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane-2,3-dicarboxylic acid
33.) 7,9-Diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane-2,3-dicarboxylic acid dimethyl ester
34.) 8,10-Diethyl-7,8,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane
35.) 8,10-Diethyl-3,3,7,8,10-pentamethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro-[5.5]undecane
36.) 3,8,10-Triethyl-3,7,8,10-tetramethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane
37.) 3,3,8,10-Tetraethyl-7,8,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro-[5.5]undecane
38.) 8,10-Diethyl-3,7,8,10-tetramethyl-9-(1-phenyl-ethoxy)-3-propyl-1,5-dioxa-9-aza-spiro-[5.5]undecane
39.) 3-Butyl-3,8,10-triethyl-7,8,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro-[5.5]undecane
40.) 2,4-Diethyl-1,2,4-trimethyl-3-(1-phenyl-ethoxy)-7,16-dioxa-3aza-dispiro[5.2.5.2]-hexadec-11-ene
41.) [8,10-Diethyl-3,7,8,10-tetramethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undec-3-yl]-methanol
42.) [3,8,10-Triethyl-7,8,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undec-3-yl]-methanol
43.) 8,10-Diethyl-3-methoxymethyl-3,7,8,10-tetramethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane
44.) 3-Cyclohexyloxymethyl-8,10-diethyl-3,7,8,10-tetramethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane
45.) 3-Benzyloxymethyl-8,10-diethyl-3,7,8,10-tetramethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane
46.) Acetic acid 8,10-diethyl-3,7,8,10-tetramethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undec-3-ylmethyl ester
47.) Octanedioic acid bis-[8,10-diethyl-3,7,8,10-tetramethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undec-3-ylmethyl] ester
48.) 1,6-Bis-{3,8,10-triethyl-7,8,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undec-3-methyloxy}-hexane
49.) 8,10-Diethyl-3,7,8,10-tetramethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]-undecane-3-carboxylic acid
50.) 8,10-Diethyl-3,7,8,10-tetramethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]-undecane-3-carboxylic acid methyl ester
51.) 8,10-Diethyl-7,8,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane-3,3-dicarboxylic acid diethyl ester
52.) 3,3-Bisspiro-{8,10-diethyl-7,8,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane}
53.) 2,4-Diethyl-1,2,4-trimethyl-3-(1-phenyl-ethoxy)-7,12-dioxa-3-aza-spiro[5.6]dodec-9-en
54.) 2,2-Diethyl-4,4-dimethoxy-6,6-dimethyl-1-(1-phenyl-ethoxy)-piperidine
55.) 4,4-Diethoxy-2,2-diethyl-6,6-dimethyl-1-(1-phenyl-ethoxy)-piperidine
56.) 2,2-Diethyl-6,6-dimethyl-1-(1-phenyl-ethoxy)4,4-dipropoxy-piperidine
57.) 4,4-Dibutoxy-2,2-diethyl-6,6-dimethyl-1-(1-phenyl-ethoxy)-piperidine
58.) 2,2-Diethyl-4,4-diisobutoxy-6,6-dimethyl-1-(1-phenyl-ethoxy)-piperidine
59.) 2,2-Diethyl-6,6-dimethyl-4,4-bis-octyloxy-1-(1-phenyl- thoxy)-pip ridine
60.) 4,4-Bis-allyloxy-2,2-diethyl-6,6-dimethyl-1-(1-phenyl-ethoxy)-piperidine
61.) 4,4-Bis-cyclohexyloxy-2,2-diethyl-6,6-dimethyl-1-(1-phenyl-ethoxy)-piperidine
62.) 4,4-Bis-benzyloxy-2,2diethyl-6,6-dimethyl-1-(1-phenyl-thoxy)-piperidine
63.) 7,7-Diethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
64.) 7,7-Diethyl-2,9,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
65.) 2,7,7-Triethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
66.) 7,7-Diethyl-9,9dimethyl-8-(1-phenyl-ethoxy)-2-propyl-1,4-dioxa-8-aza-spiro[4.5]decane
67.) 2-Butyl-7,7-diethyl-9,9dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
68.) 7,7-Diethyl-9,9-dimethyl-2-octyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.51]decane
69.) 2-Decyl-7,7-diethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
70.) 2-Dodecyl-7,7-diethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
71.) [7,7-Diethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]dec-2-yl]-methanol
72.) Acetic acid 7,7-diethyl-8-hydroxy-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl ester; compound with isopropyl-benzene
73.) Octadecanoic acid 7,7-diethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl ester
74.) Benzoic acid 7,7-diethyl-8-hydroxy-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl ester; compound with isopropyl-benzene
75.) 7,7-Diethyl-2-methoxymethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro-[4.5]decane
76.) 2-Cyclohexyloxymethyl-7,7diethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
77.) 2-Benzyloxymethyl-7,7-diethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro-[4.5]decane
78.) Octanedioic acid bis-[7,7-diethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro-[4.5]dec-2-ylmethyl] ester
79.) Terephthalic acid bis-[7,7-diethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl] ester
80.) 1,4-Bis-{[7,7-Diethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]dec-2-yl]-methyloxy}-butane
81.) 7,7-Diethyl-2,2,9,9-tetramethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]d cane
82.) 7,7-Di thyl-2,3,9,9-tetramethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decan
83.) 2,3-Benzo-7,7-diethyl-9,9-dim thyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
84.) 2,3-Cyclohexano-7,7-diethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane
85.) 7,7-Diethyl-9,9dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane-2,3-dicarboxylic acid
86.) 7,7-Diethyl-9,9-dimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane-2,3-dicarboxylic acid dimethyl ester
87.) 8,8-Diethyl-10,10-dimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane
88.) 8,8-Diethyl-3,3,10,10-tetramethyl-9-(1-phenyl-ethoxy)-1,5dioxa-9-aza-spiro[5.5]-undecane
89.) 3,8,8-Triethyl-3,10,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane
90.) 3,3,8,8-Tetraethyl-10,10-dimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]-undecane
91.) 8,8-Diethyl-3,10,10-trimethyl-9-(1-phenyl-ethoxy)-3-propyl-1,5-dioxa-9-aza-spiro[5.5]undecane
92.) 3-Butyl-3,8,8-triethyl-10,10-dimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]-undecane
93.) 2,2-Diethyl-4,4-dimethyl-3-(1-phenyl-ethoxy)-7,16-dioxa-3-aza-dispiro[5.2.5.2]hexadec-11-ene
94.) [8,8-Diethyl-3,10,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undec-3-yl]-methanol
95.) [3,8,8-Triethyl-10,10-dimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undec-3-yl]-methanol
96.) 8,8-Diethyl-3-methoxymethyl-3,10,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane
97.) 3-Cyclohexyloxymethyl-8,8-diethyl-3,10,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane
98.) 3-Benzyloxymethyl-8,8-diethyl-3,10,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane
99.) Acetic acid 8,8-diethyl-3,10,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]-undec-3-ylmethyl ster
100.) Octanedioic acid bis-[8,8diethyl-3,10,10-trimethyl-9-(1-phenyl- thoxy)-1,5-dioxa-9-aza-spiro[5.5]undec-3-ylmethyl] ester
101.) 1,6-Bis{[3,8,8-triethyl-10,10-dimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undec-3-yl]-methyloxy}-hexane
102.) 8,8-Diethyl-3,10,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane-3-carboxylic acid
103.) 8,8-Diethyl-3,10,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane-3-carboxylic acid methyl ester
104.) 8,8-Diethyl-10,10dimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane-3,3dicarboxylic acid diethyl ester
105.) 3,3-Bisspiro{8,8-diethyl-10,10-dimethyl-9-(1-phenyl-ethoxy)-1,5dioxa-9-aza-spiro[5.5]undecane}
106.) 2,2-Diethyl-4,4-dimethyl-3-(1-phenyl-ethoxy)-7,12-dioxa-3-aza-spiro[5.6]dodec-9-ene
7. A composition according to claim 1 wherein the compound of formula Ia or IIa is
4,4-Dibutoxy-2,6-diethyl-2,3,6-trimethyl-1-(1-phenyl-ethoxy)-piperidine;
7,9-Diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane;
7,9-Diethyl-2,6,7,9-tetramethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]decane;
[7,9-Diethyl-6,7,9-trimethyl-8-(1-phenyl-ethoxy)-1,4-dioxa-8-aza-spiro[4.5]dec-2-yl]-methanol;
8,10-Diethyl-7,8,10-trimethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane;
8,10-Diethyl-3,3,7,8,10-pentamethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undecane;
2,4-Diethyl-1,2,4-trimethyl-3-(1-phenyl-ethoxy)-7,16-dioxa-3-aza-dispiro[5.2.5.2]hexadec-11-ene;
[8,10-Diethyl-3,7,8,10-tetramethyl-9-(1-phenyl-ethoxy)-1,5-dioxa-9-aza-spiro[5.5]undec-3-yl]-methanol or
9-(Cyclohex-2-enyloxy)-8,10-diethyl-3,3,7,8,10-pentamethyl-1,5-dioxa-9-aza-spiro[5.5]undecane.
8. A composition according to claim 1 , wherein the ethylenically unsaturated monomer or oligomer is selected from the group consisting of ethylene, propylene, n-butylene, i-butylene, styrene, substituted styrene, conjugated dienes, acrolein, vinyl acetate, vinylpyrrolidone, vinylimidazole, maleic anhydride, (alkyl)acrylic acidanhydrides, (alkyl)acrylic acid salts, (alkyl)acrylic esters, (meth)acrylonitriles, (alkyl)acrylamides, vinyl halides or vinylidene halides.
9. A composition according to claim 8 , wherein the ethylenically unsaturated monomers are ethylene, propylene, n-butylene, i-butylene, isoprene, 1,3-butadiene, α-C5-C18alkene, styrene, α-methyl styrene, p-methyl styrene or a compound of formula CH2═C(Ra)—(C═Z)—Rb, wherein Ra is hydrogen or C1-C4alkyl, Rb is NH2, O−(Me+), glycidyl, unsubstituted C1-C18alkoxy, C2-C100alkoxy interrupted by at least one N and/or O atom, or hydroxy-substituted C1-C18alkoxy, unsubstituted C1-C18alkylamino, di(C1-C18alkyl)amino, hydroxy-substituted C1-C18alkylamino or hydroxy-substituted di(C1-C18alkyl)amino, —O—CH2—CH2—N(CH3)2 or —O—CH2—CH2—N+H(CH3)2 An−;
An− is a anion of a monovalent organic or inorganic acid;
Me is a monovalent metal atom or the ammonium ion.
Z is oxygen or sulfur.
10. A composition according to claim 1 , wherein the compound of formula Ia, IIa or IIIa is present in an amount of from 0.01 mol-% to 20 mol-%,
11. A process for preparing an oligomer, a cooligomer, a polymer or a copolymer (block or random) by free radical polymerization of at least one ethylenically unsaturated monomer or oligomer, which comprises (co)polymerizing the monomer or monomers/oligomers in the presence of an initiator compound of formula Ia, IIa or IIIa under reaction conditions capable of effecting scission of the O—C bond to form two free radicals, the radical .X being capable of initiating polymerization.
12. A process according to claim 11 , wherein the scission of the O—C bond is effected by heating and takes place at a temperature of between 50° C. and 160° C.
13. A compound of formula Ia, IIa or IIIa
wherein
n is 1 or 2;
X is selected from the group consisting of —CH2-phenyl, CH3CH-phenyl, (CH3)2C-phenyl, (C5-C6cycloalkyl)2CCN, (CH3)2CCN, —CH2CH═CH2, CH3CH—CH═CH2, 3, cycloh xenyl, 3-cyclo-pentenyl, (C1-C4alkyl)CR20—C(O)-phenyl, (C1-C4)alkyl-CR20—C(O)—(C1-C4)alkoxy, (C1-C4)alkyl-CR20—C(O)—(C1-C4)alkyl, (C1-C4)alkyl-CR20—C(O)—N-di(C1-C4)alkyl, (C1-C4)alkyl-CR20—C(O)—NH(C1-C4)alkyl, (C1-C4)alkyl-CR20—C(O)—NH2, and a group of formula
wherein R20 is hydrogen or (C1-C4)alkyl, R21 is hydrogen, C1-C4alkyl or phenyl and R22 is C1-C12alkyl which is unsubstituted or substituted by OH or N(R20)(R21) or which is interrupted by O or NR20;
if n is 1
Y and Y′ are independently C1-C12alkyl, C3-C12alkenyl, C3-C12alkinyl, C5-C8-cycloalkyl, phenyl, naphthyl, C7-C9phenylalkyl; or
Y and Y′ together form one of the bivalent groups —C(R1)(R2)—CH(R3)—, CH(R1)—CH2—C(R2)(R3)—, —CH(R2)—CH2—C(R1)(R3)—, —CH2—C(R1)(R2)—CH(R3)—, o-phenylene, 1,2-cyclohexyliden,
—CH2—CH═CH—CH2— or
wherein
R1 is hydrogen, C1-C12alkyl, COOH, COO—(C1-C12)alkyl or CH2OR4;
R2 and R3 are independently hydrogen, methyl ethyl, COOH or COO—(C1-C12)alkyl;
R4 is hydrogen, C1-C12alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms;
14. A polymerizable composition, comprising
a) at least one ethylenically unsaturated monomer or oligomer;
b) a compound of formula Ib or IIb
wherein
n is 1 or 2;
if n is 1
Y and Y′ are independently C1-C12alkyl, C3-C12alkenyl, C3-C12alkinyl, C5-C8cycloalkyl, phenyl, naphthyl, C7-C9phenylalkyl; or
Y and Y′ together form one of the bivalent groups —C(R1)(R2)—CH(R3)—, CH(R1)—CH2—C(R2)(R3)—,
—CH(R2)—CH2—C(R1)(R3)—, —CH2—C(R1)(R2)—CH(R3)—, o-phenylene, 1,2-cyclohexyliden, —CH2—CH═CH—CH2— or
wherein
R1 is hydrogen, C1-C12alkyl, COOH, COO—(C1-C12)alkyl or CH2OR4;
R2 and R3 are independently hydrogen, methyl ethyl, COOH or COO—(C1-C12)alkyl;
R4 is hydrogen, C1-C12alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms;
15. A polymerizable composition according to claim 14
wherein in the compound of formula Ib, IIb or IIIb
n is 1
Y and Y′ are independently C1-C12alkyl, C3-C12alkenyl, phenyl or benzyl; or
Y and Y′ together form one of the bivalent groups —C(R1)(R2)—CH(R3)—, CH(R1)—CH2—C(R2)(R3)—, —CH(R2)—CH2—C(R1)(R3)—, —CH2—C(R1)(R2)—CH(R3)—, —CH2—CH═CH—CH2— or; wherein
R1 is hydrogen, C1-C12alkyl, COO—(C1-C12)alkyl or CH2OR4;
R2 and R3 are independently hydrogen, methyl ethyl, or COO—(C1-C12)alkyl;
R4 is hydrogen, C1-C12alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 12 carbon atoms.
16. A polymerizable composition according to claim 14 wherein the compound of formula Ib or IIb is
1.) 2,6-Diethyl-4,4-dim thoxy-2,3,6-trimethyl-piperidin-1-oxyl
2.) 4,4-Diethoxy-2,6-diethyl-2,3,6-trimethyl-piperidin-1-oxyl
3.) 2,6-Diethyl-2,3,6-trimethyl-4,4-dipropoxy-piperidin-1-oxyl
4.) 4,4-Dibutoxy-2,6-diethyl-2,3,6-trimethyl-piperidin-1-oxyl
5.) 2,6-Diethyl-4,4-diisobutoxy-2,3,6-trimethyl-piperidin-1-oxyl
6.) 2,6-Diethyl-2,3,6-trimethyl-4,4-bis-octyloxy-piperidin-1-oxyl
7.) 4,4-Bis-allyloxy-2,6-diethyl-2,3,6-trimethyl-piperidin-1-oxyl
8.) 4,4-Bis-cyclohexyloxy-2,6-diethyl-2,3,6-trimethyl-piperidin-1-oxyl
9.) 4,4-Bis-benzyloxy-2,6-diethyl-2,3,6-trimethyl-piperidin-1-oxyl
10.) 7,9-Diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
11.) 7,9-Diethyl-2,6,7,9-tetramethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
12.) 2,7,9-Triethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
13.) 7,9-Diethyl-6,7,9-trimethyl-2-propyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
14.) 2-Butyl-7,9-diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
15.) 7,9-Diethyl-6,7,9-trimethyl-2-octyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
16.) 2-Decyl-7,9-diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
17.) 2-Dodecyl-7,9-diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
18.) 7,9-Diethyl-2-hydroxymethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
19.) Acetic acid 7,9-diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl ester-8-oxyl
20.) Octadecanoic acid 7,9-diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl ester-8-oxyl
21.) Benzoic acid 7,9-diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl ester-8-oxyl
22.) 7,9-Diethyl-2-methoxymethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
23.) 2-Cyclohexyloxymethyl-7,9-diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
24.) 2-Benzyloxymethyl-7,9-diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
25.) Octanedioic acid bis-(7,9-diethyl-8-oxyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl) ester
26.) Terephthalic acid bis-(7,9diethyl-8-oxyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl) ester
27.) 1,4-Bis-{[7,9-diethyl-6,7,9-trimethyl-8-oxyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-yl]-methyloxy}-butane
28.) 7,9-Diethyl-2,2,6,7,9-pentamethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
29.) 7,9-Diethyl-2,3,6,7,9-pentamethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
30.) 2,3-Benzo-7,9-diethyl-6,7,9-trimethyl-8-oxyl-1,4-dioxa-8-aza-spiro[4.5]decan
31.) 2,3-Cyclohexano-7,9-diethyl-6,7,9-trimethyl-8-oxyl-1,4-dioxa-8-aza-spiro[4.5]decane
32.) 7,9-Diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decane2,3-dicarboxylic acid-8-oxyl
33.) 7,9-Diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decane-2,3-dicarboxylic acid dimethyl ester-8-oxyl
34.) 8,10-Diethyl-7,8,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
35.) 8,10-Diethyl-3,3,7,8,10-pentamethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
36.) 3,8,10-Triethyl-3,7,8,10-tetramethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
37.) 3,3,8,10-Tetraethyl-7,8,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
38.) 8,10-Diethyl-3,7,8,10-tetramethyl-3-propyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
39.) 3-Butyl-3,8,10-triethyl-7,8,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
40.) 2,4-Diethyl-1,2,4-trimethyl-7,16-dioxa-3-aza-dispiro[5.2.5.2]hexadec-11-en-3-oxyl
41.) 8,10-Diethyl-3-hydroxymethyl-3,7,8,10-tetramethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
42.) 3,8,10-Triethyl-3-hydroxymethyl-7,8,10-trimethyl-1,5dioxa-9-aza-spiro[5.5]undecan-9-oxyl
43.) 8,10-Diethyl-3-methoxymethyl-3,7,8,10-tetramethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
44.) 3-Cyclohexyloxymethyl-8,10-diethyl-3,7,8,10-tetramethyl-1,5-dioxa-9-aza-spiro[5.5]-undecan-9-oxyl
45.) 3-Benzyloxymethyl-8,10-diethyl-3,7,8,10-tetramethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
46.) Acetic acid 8,10-diethyl-3,7,8,10-tetramethyl-1,5-dioxa-9-aza-spiro[5.5]undec-3-ylmethyl ester-9-oxyl
47.) Octanedioic acid bis-(8,10-diethyl-9-oxyl-3,7,8,10-tetramethyl-1,5-dioxa-9-aza-spiro[5.5]undec-3-ylmethyl) ester
48.) 1,6-Bis-{3,8,10-triethyl-7,8,10-trimethyl-9-oxyl-1,5-dioxa-9-azaspiro[5.5]undec-3-methyloxy}-hexane
49.) 8,10-Diethyl-3,7,8,10-tetramethyl-1,5-dioxa-9-aza-spiro[5.5]undecane-3-carboxylic acid-9-oxyl
50.) 8,10-Diethyl-3,7,8,10-tetramethyl-1,5-dioxa-9-aza-spiro[5.5]undecane-3-carboxylic acid methyl ester-9-oxyl
51.) 8,10-Diethyl-7,8,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-3,3-dicarboxylic acid diethyl ester-9-oxyl
52.) 3,3-Bisspiro-{8,10-diethyl-7,8,10-trimethyl-9-oxyl-1,5-dioxa-9-aza-spiro[5.5]undecane}
53.) 2,4-Diethyl-1,2,4-trimethyl-7,12-dioxa-3-aza-spiro[5.6]dodec-9-en-3-oxyl
54.) 2,2-Diethyl-4,4-dimethoxy-6,6-dimethyl-piperidin-1-oxyl
55.) 4,4-Diethoxy-2,2-diethyl-6,6-dimethyl-piperidin-1-oxyl
56.) 2,2-Diethyl-6,6-dimethyl-4,4-dipropoxy-piperidin-1-oxyl
57.) 4,4-Dibutoxy-2,2-diethyl-6,6-dimethyl-piperidin-1-oxyl
58.) 2,2-Diethyl-4,4-diisobutoxy-6,6-dimethyl-piperidin-1-oxyl
59.) 2,2-Diethyl-6,6-dimethyl-4,4-bis-octyloxy-piperidin-1-oxyl
60.) 4,4-Bis-allyloxy-2,2-diethyl-6,6-dimethyl-piperidin-1-oxyl
61.) 4,4-Bis-cyclohexyloxy-2,2-diethyl-6,6-dimethyl-piperidin-1-oxyl
62.) 4,4-Bis-benzyloxy-2,2-diethyl-6,6-dimethyl-piperidin-1-oxyl
63.) 7,7-Diethyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
64.) 7,7-Diethyl-2,9,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
65.) 2,7,7-Triethyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
66.) 7,7-Diethyl-9,9-dimethyl-2-propyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
67.) 2-Butyl-7,7-diethyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
68.) 7,7-Diethyl-9,9-dimethyl-2-octyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
69.) 2-Decyl-7,7-diethyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
70.) 2-Dodecyl-7,7-diethyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
71.) 7,7-Diethyl-2-hydroxymethyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
72.) Acetic acid 7,7-diethyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl ester-8-oxyl
73.) Octadecanoic acid 7,7-diethyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl ester-8-oxyl
74.) Benzoic acid 7,7-diethyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl ester-8-oxyl
75.) 7,7-Diethyl-2-methoxymethyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
76.) 2-Cyclohexyloxymethyl-7,7-diethyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
77.) 2-Benzyloxymethyl-7,7-diethyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
78.) Octanedioic add bis-(7,7-diethyl-8-oxyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl) ester
79.) Terephthalic acid bis-(7,7-diethyl-8-oxyl-9,9-dim thyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-ylmethyl) ester
80.) 1,4-Bis-{[7,7-diethyl-9,9-dimethyl-8-oxyl-1,4-dioxa-8-aza-spiro[4.5]dec-2-yl]-methyloxy}-butane
81.) 7,7-Diethyl-2,2,9,9-tetramethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
82.) 7,7-Diethyl-2,3,9,9tetramethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl
83.) 2,3-Benzo-7,7-diethyl-9,9-dimethyl-8-oxyl-1,4-dioxa-8-aza-spiro[4.5]decane
84.) 2,3-Cyclohexano-7,7diethyl-9,9-dimethyl-8-oxyl-1,4dioxa-8-azaspiro [4.5]decane
85.) 7,7-Diethyl-9,9dimethyl-1,4-dioxa-8-aza-spiro[4.5]decane-2,3-dicarboxylic acid-8-oxyl
86.) 7,7-Diethyl-9,9-dimethyl-1,4-dioxa-8-aza-spiro[4.5]decane-2,3-dicarboxylic acid dimethyl ester-8-oxyl
87.) 8,8-Diethyl-10,10-dimethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
88.) 8,8-Diethyl-3,3,10,10-tetramethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
89.) 3,8,8-Triethyl-3,10,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
90.) 3,3,8,8-Tetraethyl-10,10-dimethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
91.) 8,8-Diethyl-3,10,10-trimethyl-3-propyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
92.) 3-Butyl-3,8,8-triethyl-10,10-dimethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
93.) 2,2-Diethyl-4,4-dimethyl-7,16-dioxa-3-aza-dispiro[5.2.5.2]hexadec-11-en-3-oxyl
94.) 8,8-Diethyl-3-hydroxymethyl-3,10,10-trimethyl-1,5dioxa-9-aza-spiro[5.5]undecan-9-oxyl
95.) 3,8,8-Triethyl-3-hydroxymethyl-10,10-dimethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
96.) 8,8-Diethyl-3-methoxymethyl-3,10,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
97.) 3-Cyclohexyloxymethyl-8,8-diethyl-3,10,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
98.) 3-Benzyloxymethyl-8,8-diethyl-3,10,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl
99.) Acetic acid 8,8-diethyl-3,10,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undec-3-ylmethyl ester-9-oxyl
100.) Octanedioic acid bis-(8,8-diethyl-9-oxyl-3,10,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undec-3-ylmethyl) ester
101.) 1,6-Bis{[3,8,8-triethyl-10,10-dimethyl-9-oxyl-1,5-dioxa-9-aza-spiro[5.5]undec-3-yl]-methyloxy}-hexane
102.) 8,8-Diethyl-3,10,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undecane-3-carboxylic acid-9-oxyl
103.) 8,8-Diethyl-3,10,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undecane-3-carboxylic acid methyl ester-9-oxyl
104.) 8,8-Diethyl-10,10-dimethyl-1,5-dioxa-9-aza-spiro[5.5]undecane-3,3-dicarboxylic acid diethyl ester-9-oxyl
105.) 3,3-Bisspiro{8,8-diethyl-10,10-dimethyl-9-oxyl-1,5-dioxa-9-aza-spiro[5.5]undecane}
106.) 2,2-Diethyl-4,4-dimethyl-7,12-dioxa-3-aza-spiro[5.6]dodec-9-en-3-oxyl
17. A polymerizable composition according to claim 14 wherein the compound of formula Ib or IIb is
4,4-Dibutoxy-2,6-diethyl-2,3,6-trimethyl-piperidin-1-oxyl;
7,9-Diethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl;
7,9-Diethyl-2,6,7,9-tetramethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl;
7,9-Diethyl-2-hydroxymethyl-6,7,9-trimethyl-1,4-dioxa-8-aza-spiro[4.5]decan-8-oxyl;
8,10-Diethyl-7,8,10-trimethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxyl;
8,10-Diethyl-3,3,7,8,10-pentamethyl-1,5dioxa-9-aza-spiro[5.5]undecan-9-oxyl;
2,4-Diethyl-1,2,4-trimethyl-7,16-dioxa-3-aza-dispiro[5.2.5.2]hexadec-11-en-3-oxyl;
8,10-Diethyl-3-hydroxymethyl-3,7,8,10-tetramethyl-1,5-dioxa-9-aza-spiro[5.5]undecan-9-oxy
18. A process for preparing an oligomer, a cooligomer, a polymer or a copolymer (block or random) by free radical polymerization of at least one ethylenically unsaturated monomer/oligomer, which comprises subjecting the composition according to claim 14 to heat or actinic radiation.
19. A compound of formula Ib or IIb
wherein
n is 1 or 2;
if n is 1
Y and Y′ are independ ntly C1-C12alkyl, C3-C12alkenyl, C3-C12alkinyl, C5-C8cycloalkyl, phenyl, naphthyl, C7-C9phenylalkyl; or
Y and Y′ together form one of th bivalent groups —C(R1)(R2)—CH(R3)—, CH(R1)—CH2—C(R2)(R3)—, —CH(R2)—CH2—C(R1)(R3)—, —CH2—C(R1)(R2)—CH(R3)—, o-phenylene, 1,2-cyclohexyliden,
—CH2—CH═CH—CH or
wherein
R1 is hydrogen, C1-C12alkyl, COOH, COO—(C1-C12)alkyl or CH2OR4;
R2 and R3 are independently hydrogen, methyl ethyl, COOH or COO—(C1-C12)alkyl;
R4 is hydrogen, C1-C12alkyl, benzyl, or a monovalent acyl residue derived from an aliphatic, cycloaliphatic or aromatic monocarboxylic acid having up to 18 carbon atoms;
20. A polymer or oligomer, having attached at least one oxyamine group derived from formula Ia, IIa or IIIa according to claim 1 .
21. Use of a compound of formulae Ia, IIa or IIIa according to claim 1 for the polymerization of ethylenically unsaturated monomers.
22. Use of a compound of formulae Ib or IIb according to claim 14 for the polymerization of ethylenically unsaturated monomers together with a source of free radicals.
Priority Applications (2)
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US11/364,537 US7288613B2 (en) | 2000-12-14 | 2006-02-28 | N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds, their corresponding N-oxides and controlled radical polymerization therewith |
US11/903,093 US7572869B2 (en) | 2000-12-14 | 2007-09-20 | N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds, their corresponding n-oxides and controlled radical polymerization therewith |
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EP00811190 | 2000-12-14 | ||
EP008111908 | 2000-12-14 | ||
PCT/EP2001/013072 WO2002048205A1 (en) | 2000-12-14 | 2001-11-12 | N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds, their corresponding n-oxides and controlled radical polymerization therewith |
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US11/364,537 Continuation US7288613B2 (en) | 2000-12-14 | 2006-02-28 | N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds, their corresponding N-oxides and controlled radical polymerization therewith |
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US11/364,537 Expired - Fee Related US7288613B2 (en) | 2000-12-14 | 2006-02-28 | N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds, their corresponding N-oxides and controlled radical polymerization therewith |
US11/903,093 Expired - Fee Related US7572869B2 (en) | 2000-12-14 | 2007-09-20 | N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds, their corresponding n-oxides and controlled radical polymerization therewith |
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US11/903,093 Expired - Fee Related US7572869B2 (en) | 2000-12-14 | 2007-09-20 | N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds, their corresponding n-oxides and controlled radical polymerization therewith |
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EP (1) | EP1343827A1 (en) |
JP (2) | JP4602638B2 (en) |
KR (1) | KR100838217B1 (en) |
CN (1) | CN1198851C (en) |
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US20100249386A1 (en) * | 2009-03-26 | 2010-09-30 | Universite De Provence | Dinitroxide-type biradical compounds optimized for dynamic nuclear polarization (dnp) |
US8900779B2 (en) | 2006-07-11 | 2014-12-02 | Ciba Corporation | Color filter composition |
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US7868171B2 (en) * | 2001-11-12 | 2011-01-11 | Ciba Specialty Chemicals Corp. | N-alkoxy-4, 4-dioxy-polyalkyl-piperidines as radical polymerization initiators |
US7253232B2 (en) | 2002-09-26 | 2007-08-07 | Ciba Specialty Chemicals Corp. | Thermoplastic compositions with enhanced melt flow and compatibility |
CN100586963C (en) * | 2004-05-27 | 2010-02-03 | 西巴特殊化学品控股有限公司 | Alkoxyamines containing a radical polymerization group |
WO2006024621A1 (en) * | 2004-09-03 | 2006-03-09 | Ciba Specialty Chemicals Holding Inc. | In-can stabilizers |
JP5642150B2 (en) * | 2009-03-23 | 2014-12-17 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | Photoresist composition |
RU2013103600A (en) | 2010-06-29 | 2014-08-10 | Басф Се | METHOD FOR IMPROVING PROPERTIES OF FLOW OF POLYMER MELTS |
CA2853318A1 (en) | 2011-10-25 | 2013-05-02 | Basf Se | Use of comb or block copolymers as soil antiredeposition agents and soil release agents in laundry processes |
EP2978786A1 (en) | 2013-03-27 | 2016-02-03 | Basf Se | Block copolymers as soil release agents in laundry processes |
FR3004450B1 (en) | 2013-04-15 | 2015-12-18 | Univ Aix Marseille | RIGID DINITROXIDE-LIKE BIRDICAL COMPOUNDS AS PERFECTED POLARIZATION AGENTS FOR NUCLEAR DYNAMIC POLARIZATION (PDN) TECHNIQUES |
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- 2001-11-12 US US10/450,229 patent/US20040082742A1/en not_active Abandoned
- 2001-11-12 WO PCT/EP2001/013072 patent/WO2002048205A1/en active Application Filing
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US20030065184A1 (en) * | 2000-03-22 | 2003-04-03 | Peter Nesvadba | 2,2,6,6 diethyl-dimethyl-1-alkoxy-piperidine compounds and their corresponding 1-oxides |
US20030216494A1 (en) * | 2000-05-19 | 2003-11-20 | Michael Roth | Hydroxylamine esters as polymerization initiators |
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US20100249386A1 (en) * | 2009-03-26 | 2010-09-30 | Universite De Provence | Dinitroxide-type biradical compounds optimized for dynamic nuclear polarization (dnp) |
US8648193B2 (en) | 2009-03-26 | 2014-02-11 | Universite D'aix Marseille | Dinitroxide-type biradical compounds optimized for dynamic nuclear polarization (DNP) |
US9035054B2 (en) | 2009-03-26 | 2015-05-19 | Universite D'aix-Marseille | Dinitroxide-type biradical compounds optimized for dynamic nuclear polarization (DNP) |
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JP2004526683A (en) | 2004-09-02 |
US7572869B2 (en) | 2009-08-11 |
KR100838217B1 (en) | 2008-06-13 |
CA2431393A1 (en) | 2002-06-20 |
JP2010065058A (en) | 2010-03-25 |
CN1481393A (en) | 2004-03-10 |
WO2002048205A1 (en) | 2002-06-20 |
CN1198851C (en) | 2005-04-27 |
US20060149011A1 (en) | 2006-07-06 |
TW557305B (en) | 2003-10-11 |
JP4602638B2 (en) | 2010-12-22 |
EP1343827A1 (en) | 2003-09-17 |
US20080015276A1 (en) | 2008-01-17 |
US7288613B2 (en) | 2007-10-30 |
AU2002224841A1 (en) | 2002-06-24 |
KR20040010572A (en) | 2004-01-31 |
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