GB1304677A - - Google Patents
Info
- Publication number
- GB1304677A GB1304677A GB2801371A GB2801371A GB1304677A GB 1304677 A GB1304677 A GB 1304677A GB 2801371 A GB2801371 A GB 2801371A GB 2801371 A GB2801371 A GB 2801371A GB 1304677 A GB1304677 A GB 1304677A
- Authority
- GB
- United Kingdom
- Prior art keywords
- radical
- carbon atoms
- alkyl
- initiator
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/24—Oxygen or sulfur atoms
- C07D207/26—2-Pyrrolidones
- C07D207/263—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms
- C07D207/27—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms with substituted hydrocarbon radicals directly attached to the ring nitrogen atom
-
- 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
- C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
-
- 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
- C08F4/04—Azo-compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polymerisation Methods In General (AREA)
Abstract
1304677 Oligomers MERCK PATENT GmbH 15 June 1971 [20 June 1970] 28013/71 Heading C2C [Also in Division C3] In a process for the preparation of an oligomer with identical end groups, at least one radical polymerizable monovinyl compound, except unsubstituted olefins with more than two carbon atoms, is reacted with a symmetrical, radical donating azo compound as initiator, said initiator having a half-life of at most 120 minutes at from 60 to 160‹ C., the concentration of the initiator fragments being so adjusted that, upon reaching the desired degree of polymerization of between 1 and 200, a complete chain termination takes place exclusively by initiator fragments. Preferred initiators have the general formula wherein R 1 is an alkyl radical having up to 6 carbon atoms, and the preferred oligomers have the general formula wherein R is a radical fragment derived from the initiator, R 1 is a hydrogen atom or an alkyl radical having 1 to 6 carbon atoms, R 2 is a hydrogen atom or a phenyl or substituted phenyl radical or a radical of the general formula -COOR 3 , -COR 4 , -CHO, -CN, -OR 5 or R 3 is a hydrogen atom, an alkyl radical having up to 18 carbon atoms, which can be intercepted by heteroatoms, a cycloalkyl radical having 3 to 7 carbon atoms or a phenyl or substituted phenyl radical, R 4 is an amino group or a mono- or dialkyl-amino radical, the alkyl groups of which contain up to 18 carbon atoms, a CO-alkyl group, the alkyl groups of which contain up to 18 carbon atoms, or a CO-phenyl radical, the phenyl group of which can also be substituted, R 5 is an alkyl or aliphatic acyl radical having up to 18 carbon atoms and n is an integer from 1 to 200, with the proviso that R 1 is not an alkyl radical when R 2 is a hydrogen atom. In the examples a large variety of vinyl monomers are converted to oligomers using azodiisobutyronitrile, 4,4<SP>1</SP>-azobis - 4 - cyanopentanoic acid, 2,21 - azo - bis- (2-methyl - butyronitrile), and 2,2<SP>1</SP>- azo - bisisobutyric acid ethyl ester and diethyl ester.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702030589 DE2030589A1 (en) | 1970-06-20 | 1970-06-20 | Telechelic oligomers for their preparation and process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1304677A true GB1304677A (en) | 1973-01-24 |
Family
ID=5774560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2801371A Expired GB1304677A (en) | 1970-06-20 | 1971-06-15 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE768719A (en) |
| DE (1) | DE2030589A1 (en) |
| ES (1) | ES392439A1 (en) |
| FR (1) | FR2099125A5 (en) |
| GB (1) | GB1304677A (en) |
| NL (1) | NL7108423A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2460329A1 (en) * | 1974-12-20 | 1976-07-01 | Bayer Ag | LOW MOLECULAR ACRYLATE RESINS WITH LOW DISPERSALITY AND A METHOD FOR THEIR PRODUCTION |
| DE2961103D1 (en) * | 1978-01-27 | 1981-12-10 | Bayer Ag | Use of reactive oligomers for hardening unsaturated polyester resins |
| DE3608556A1 (en) * | 1986-03-14 | 1987-10-01 | Akzo Gmbh | TELECHELE POLYMERS |
| JP2930371B2 (en) * | 1990-06-08 | 1999-08-03 | 東燃株式会社 | Both-end-modified ethylene polymer and method for producing the same |
-
1970
- 1970-06-20 DE DE19702030589 patent/DE2030589A1/en active Pending
-
1971
- 1971-06-15 GB GB2801371A patent/GB1304677A/en not_active Expired
- 1971-06-16 FR FR7121912A patent/FR2099125A5/fr not_active Expired
- 1971-06-18 NL NL7108423A patent/NL7108423A/xx unknown
- 1971-06-18 BE BE768719A patent/BE768719A/en unknown
- 1971-06-19 ES ES392439A patent/ES392439A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE768719A (en) | 1971-12-20 |
| ES392439A1 (en) | 1974-07-01 |
| NL7108423A (en) | 1971-12-22 |
| FR2099125A5 (en) | 1972-03-10 |
| DE2030589A1 (en) | 1971-12-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |