WO2000011043A1 - Verfahren zur herstellung von definierten schichten oder schichtsystemen - Google Patents
Verfahren zur herstellung von definierten schichten oder schichtsystemen Download PDFInfo
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- WO2000011043A1 WO2000011043A1 PCT/EP1999/006009 EP9906009W WO0011043A1 WO 2000011043 A1 WO2000011043 A1 WO 2000011043A1 EP 9906009 W EP9906009 W EP 9906009W WO 0011043 A1 WO0011043 A1 WO 0011043A1
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- group
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- groups
- alkyl
- solid
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- 0 CCC12C(CC3CC3)*CC1C2 Chemical compound CCC12C(CC3CC3)*CC1C2 0.000 description 2
- YOCIJWAHRAJQFT-UHFFFAOYSA-N CC(C)(C(Br)=O)Br Chemical compound CC(C)(C(Br)=O)Br YOCIJWAHRAJQFT-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2984—Microcapsule with fluid core [includes liposome]
- Y10T428/2985—Solid-walled microcapsule from synthetic polymer
- Y10T428/2987—Addition polymer from unsaturated monomers only
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2998—Coated including synthetic resin or polymer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31536—Including interfacial reaction product of adjacent layers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
- Y10T428/31794—Of cross-linked polyester
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
- Y10T428/31797—Next to addition polymer from unsaturated monomers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31826—Of natural rubber
- Y10T428/31841—Next to cellulosic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
Definitions
- the invention relates to a process for producing defined layers or layer systems from polymers or oligomers with controlled
- Another object of the invention are solid surfaces with oligomer or polymer layers and various compounds with an anchor group and a group, of which the polymer
- the present invention relates to a method based on the mechanism of "living" / controlled radical reaction and polymerization for chemical modification of any solid surface.
- the solid body can consist of any material, be of solid or porous nature, be in finely divided form, be of natural or synthetic origin or have a heterogeneous surface structure or composition.
- a surface generally refers to any phase interfaces.
- a surface can also be the inner surface between two different components within a composite material. Examples of this type are composite materials made of a polymer matrix and an inorganic see reinforcers, polymers filled with dyes or a polymer-metal composite, generally speaking composite materials made from a polymer matrix and a functional additive
- Chemical properties of solid surfaces can be used to tailor surface properties.
- the surface can be given the desired quality.
- the quality of the physical interaction of the surface-modified solid with other substances, the chemical reactivity and the ability to chemically bind other substances can be adjusted
- the properties of the original surface can be changed in individual cases so that the properties of the overall system are only determined by the coating. This makes it possible, for example, to provide a composite system with the necessary mechanical material using a suitable carrier material To give strength and on the other hand to set the desired mechanical, physical and / or chemical properties of the surface through the coating system
- Polymer molecules can also be chemically bonded to solid surfaces by forming a covalent chemical bond to the solid surface via mostly terminal groups of the polymer molecules ("grafting to", for example via a condensation reaction).
- a disadvantage of this process is that the yields of such surface reactions and thus the graft densities of the polymer molecules on the surface are generally not very high, since polymer molecules which have already been bound hinder the approach of further molecules to the surface.
- the method is limited to polymers with a relatively low molecular weight, since only with small molecules is there a sufficiently high probability that the functional group of the polymer molecule is within reach of the attachment points on the solid surface and a chemical reaction between the two is possible.
- azo-bis-isobutyronitrile (AiBN) or benzoyl peroxide (BPO) is covalently bound to the solid surface as an initiating radical, the second radical fragment remains unbound and can initiate a polymerization reaction that does not take place on the solid surface but unbound. If the polymerization is triggered with the above Conventional initiators are therefore always formed in addition to unbound polymer and also unbound polymer.
- the LB method described in this document can only be used on planar substrate surfaces, and here limited in size, but not on solid surfaces of any size, shape and shape, and not on inner surfaces of open-pored materials.
- the density of the molecules in the layer can only be influenced incompletely.
- the degree of polymerization of the grafted-on polymer molecules is only verified indirectly; the grafted-on polymer molecules themselves are not used for this purpose. Furthermore, it is not stated that the chain ends can still be initiated.
- the technical problem to be solved is to provide a method for producing layers or layer systems from polymers or oligomers, in which initiators are used which do not have the disadvantages mentioned above and a coating of systems of any size, surface structure or composition enable. Furthermore, it should be possible to suppress the occurrence of thermal polymerization by using lower reaction temperatures and suitable reaction control.
- A is an anchor group
- I the initiating group for ATRP polymerization
- L the link between A and I.
- the invention relates to a method of using the "living" / controlled radical polymerization for the targeted and defined chemical modification of any solid surface. Oligomer or polymer molecules are formed in a "living" / controlled radical polymerization reaction directly on the surface of the solid.
- free radical polymerization reactions triggered from solid surfaces with respect to the chain length of the growing polymer chains were difficult or impossible to control.
- radical reactions which start from chemically equipped solid surfaces can now be stopped without interruption, i.e. controllable, executed. This allows the length of the graft branch to be tailored with a narrow graft branch length distribution at the same time; block copolymers are also easily accessible as graftlings.
- the advantage of the process according to the invention is to apply the "living" / controlled radical polymerization method to any solid surface using initiator groups which, owing to their stability, are easy to handle and use and whose property is at temperatures below 120 ° C to enable "living" / controlled radical polymerizations according to the ATRP mechanism, without thermal polymerization occurring to any appreciable extent at the same time.
- the solid body can consist of any material, be of solid or porous nature, be in finely divided form, natural or To be of synthetic origin or to have a heterogeneous surface structure or composition.
- the only requirement is that the solid used on its surface already has chemical properties or that chemical properties can be generated on it which allow the connection of chemical compounds via main valence bonds to understand the term "main valence bond" the entire spectrum of chemical bonds, which is given by the three border traps covalent, ionic and metallic bond and the transitions between the three border cases.
- Solids which already have the suitable chemical properties for the attachment of chemical compounds have, for example, hydroxyl groups on their surface.
- surfaces of non-polar substances such as poly (propylene) or poly (tetrafluoroethylene) readily react with reactive ones Have groups, for example hydroxyl groups, equipped, for example by means of plasma treatment
- initiators designated chemical compounds of the general formula I linked to ALI
- the choice of the initiator group is depending on the desired reaction conditions and the monomer to be polymerized
- anchor group A which is capable of binding the compound ⁇ to the surface in the form of a chemical main with the functionalities on the solid surface via a reaction - Achieve valence bond
- This bond must be stable under the given reaction conditions of "living" / controlled radical polymerization
- R substituent, each independently selected from the group: H, alkyl, preferably methyl to propyl, aryl, also substituted, preferably phenyl, also mixed alkyl and aryl; applies to all R in this table that have no indices.
- the anchor group A can be a metallic radical M, with which AL becomes a group in the sense of an organometallic reagent ML.
- M is selected such that the reactants ML and functional groups on the Allow solid surface cross-couplings.
- ML can therefore use organometallic groups with lithium (Murahashi), sodium, magnesium (Grignard, Kumada- Tamao, Corriu), boron (Suzuki-Miyaura), aluminum (Nozaki-Oshima, Negishi), zircon (Negishi), zinc (Negishi, Normant) copper or copper-lithtum or copper-zinc (Normant, Sonogashira), tin (Migita-Kosugi, Stille), silicon (also a variant of Hiyama), mercury, cadmium and silver
- a suitable catalyst and the property of the respective functional groups on the solid surface As a catalyst, depending on the organometallic grouping ML, elemental metal or a compound (salt or complex) of the metals Pd (0), Pd (ll), N ⁇ (0), N ⁇ (ll), Pt (0) , Cu (I), Co
- the structural element L present as part of A-L-I can be selected independently from the list 1 -3 below
- 1 L is a structural element which, according to formula III of the patent WO 98/01480 by K Matyjaszewski et al, has the groups R 11 , R 12 , R 3 specified therein and which are selected in a chemically sensible manner independently of one another, at least one H or halogen in all three, preferably in two, but particularly preferably in one of the groups R 11 , R 2 , R 13 is A (note only the group definitions of R 11 , R 12 , R 13 correspond to those of patent WO 98/01480 by K Matyjaszewski et al)
- at least one H or halogen in all three, only two or even only one of the groups R 11 , R 12 , R 13 can be further functional groups, which are described in patent WO 98/01480 by K Matyjaszewski et al in the variability of R 11 , R 12 , R 13 hold, can already perform the function of anchor groups A or they can serve to introduce A.
- L is a structural element in which all groups R 11 , R 12 , R 13 (according to formula III of patent WO 98/01480 by K. Matyjaszewski et al.) Or two of these groups or only one group are replaced by a ) Oligo (oxialkylene) with Ci to C 20 , also alternating Ci and C 2 groups, b) oligo (ethyleneimine), c) oligosiloxanyl with Sii to Si 20 , SiR 1 R 2 with R 1 and R 2 equal to alkyl, preferably methyl, also aryl, preferably phenyl, also mixed alkyl and aryl, where in a) to c) at least one H, in c) at least one H or at least one aryl, in all three, preferably in two, particularly preferably in one of the groups R 11 , R 12 , R 13 is equal to A. In addition, in a) to c) at least one H or in c) at least one H or an H
- L is a structural element in which in groups R 11 , R 2 , R 3 (according to formula III of patent WO 98/01480 by K. Matyjaszewski et al.)
- An optionally contained group R 5 via the specification in patent WO 98/01480 is one of the following groups: a) oligo (oxialkylene) with Ci to C 20 , also alternating d and C 2 groups, b) Oiigo (ethyleneimine), c) oligosiloxanyl with Sii to Si 2 o, SiR 1 R 2 with R 1 and R 2 being alkyl, preferably methyl, also aryl, preferably phenyl, also mixed alkyl and aryl, where in a) to c) at least one H, in c) at least one H or at least one aryl, in all three, preferably in two, particularly preferably in one of the groups R 1 , R 12 , R 13 is equal to A.
- the silylic anchor group A is tri-, di- or monofunctional.
- Chlorine is preferably used as halogen, since there is a large selection of compounds and their price is cheap.
- the choice of solvent depends on the reactants used. With chlorine as halogen, the reaction is preferably carried out in the presence of an auxiliary base, for example tri-5-ethylamine, and in a dry organic solvent.
- linkages are also possible which are characterized by a sulfide, disulfide, ether, ester, thioester, sulfonate, amide, amine, CC, CN Bond or through the interaction between counterions. These links can be generated by substitution, addition or condensation reactions. The reactions required for this have long been known in the field of organic synthesis, as have the solvents and other process chemicals and process parameters which can be used advantageously.
- Carboxylic acid derivatives 3 have proven useful for binding to solids, especially those which have OH groups.
- L and I are as specified above.
- Thiol and disulfide anchor groups of the general formulas 4 and 5 have proven useful for binding to semi-precious or noble metals, the solid surface of which is not functionalized:
- the initiators of type - 6 mentioned above and below can contain in their structural element L, as specified above, a bond which can be cleaved under suitable conditions, e.g. have an ester function.
- a cleavable bond is established according to the invention especially with regard to the analysis of the polymers formed on the solid surface, even if statements about the molecular weights, their distribution and the number of polymer chains formed are to be made.
- Compounds of the general formula A-L-I 1 are used as initiators which are able to initiate a "living" / controlled free-radical polymerization reaction according to the ATRP mechanism on solid surfaces.
- the constituents A, L and I contained in FIG. 1 can each be selected independently from the specifications for A, L and I given above. With an advantageous selection from the above specification of A in 1, the initiators are compounds of the formulas 2-6:
- L is a chemical bond; Alkyl with d to C 20 , preferably Ci to C 8 ; Aryl, preferably phenyl, also substituted; Aralkyl with the aryl component preferably phenyl and with the alkyl component Ci to C 2 o; or a structural element with which compounds of the formulas 7 to 1_1 result as initiators:
- R 3 , R 4 definition of the Silyi anchors as specified above
- R 8 H, alkyl, preferably methyl, ethyl
- Z ' atom or group transferable according to the ATRP mechanism
- a "living" / controlled radical polymerization is carried out with radically polymerizable monomers.
- Radically polymerizable monomers are advantageously styrene and its derivatives, acrylates, methacrylates, acrylonitrile, but also macromonomers and generally all compounds equipped with a polymerizable CC double bond, it being possible for different monomers to be mixed or successively to form a copolymer on the solid surface or to produce block copolymer.
- the oligomer or polymer chains formed on the solid surface in a "living" / controlled radical polymerization reaction can be linear or branched.
- each chain started by an initiator continues to grow as long as monomers are still present in the reaction mixture. Since this is a "living” polymerization, the chain ends are still active after the monomer has been completely consumed, ie they are capable of further "living” / controlled radical polymerization reactions. For this reason, solid particles from which the "living" / controlled radical polymerization is triggered during the Polymerization and also individual solid particles after the polymerization.
- a second-generation polymer layer can be produced on the first polymer layer by means of a renewed “living” / controlled radical polymerization.
- This second generation polymer layer can consist of different polymer or macromonomer species than the first generation polymer layer or of a mixture of different monomer or macromonomer species or of mixtures of monomers and macromonomers.
- the second-generation polymer layer is linked to the first-generation polymer layer by main chemical valence bonds.
- polymer layers can be modified, for example by chemical conversions of functional groups of the oligomer or polymer chains attached to the solids by means of suitable ones
- the functional groups can be given by each individual monomer unit or by the "living" end group.
- the suitable reactants can be low-molecular or high-molecular compounds or mixtures thereof.
- Another object of the invention are oligomer or polymer layers produced by the process according to the invention, and the initiators of the general formula 1, for which on the one hand the following formulas 2 - 28, on the other hand and especially those in Examples 1-11.
- formulas 29-39 are exemplary.
- the components A, L and I contained in the formulas 1 - H can each be selected independently from the specifications for A, L and I given above.
- R 1 , R 2 definition in the siloxane link L, as specified above
- R 3 , R 4 definition of the silyl anchor as specified above
- R 8 H, alkyl, preferably methyl, ethyl
- R 11 , R 12 independently selectable substituents according to formula III of patent WO 98/01480 by K. Matyjaszewski et al.
- the method according to the invention can be used to produce layers or layer systems which change the properties of the original surfaces to such an extent that they are only determined as such by the coating.
- Typical surface properties are - in addition to the chemical reactivity - for example adhesion and permeation behavior, interfacial tension, adsorption capacity, optical properties such as reflectivity, surface conductivity, appearance, hardness, etc.
- adhesion and permeation behavior for example adhesion and permeation behavior
- interfacial tension for example adhesion and permeation behavior
- adsorption capacity for example optical properties
- reflectivity for example
- porous, oligo- or polymer-coated materials to prevent the permeation and / or sorption of gases and liquids, e.g.
- surfaces of implants of natural or synthetic origin can be conditioned in such a way that a better connection of body cells is made possible and thus a better incorporation of the implant is achieved.
- suitable molecules chemically bound in the polymer to implant surfaces, rejection reactions against the implant can be further reduced.
- Tetrahydrofuran (THF) is dried by refluxing it over sodium wire. It is distilled off directly before use. Pyridine is dried over KOH and fractionally distilled. 4-allyloxy-4'-hydroxybiphenyl is prepared according to known literature [Finkelmann, H .; Lühmann, B .; Rehage, G .; Macromol. Chem. 186, 1095 (1985)]. 2-bromo-2-methylpropionic acid bromide 30 is fractionally distilled in vacuo. Petroleum ether is fractionally distilled, using the fraction with the boiling range between 40 ° C and 65 ° C. Diethyl ether is distilled.
- Fig. 1 shows the 1 H-NMR spectrum of the compound 3_1.
- Fig. 2 shows the 13 C-NMR spectrum of the compound 3J.
- Fig. 3 shows the 1 H-NMR spectrum of the compound 32
- Fig. 4 shows the 13 C-NMR spectrum of the compound 32 Admission requirement: Solution of initiator 32 in CDCI 3 with TMS as internal standard.
- 2-chloro-2-phenylacetic acid chloride 29 is fractionally distilled in vacuo. Triethyiamine is dried over CaH 2 and distilled under protective gas. 10-Undecen-1-ol is used without further purification. The pretreatment of other chemicals and solvents is described in Examples 3 and 4 above.
- Admission requirement Solution of initiator 33 in CDCI 3 with TMS as internal standard.
- 2-bromo-2-methylpropionic acid bromide 30 is distilled in vacuo. The pretreatment of other chemicals and solvents is described in the above Examples 3.-5. described.
- Fig. 7 shows the 1 H-NMR spectrum of the compound 34
- Fig. 8 shows the 13 C-NMR spectrum of the compound 34
- Chlorodimethylsilane is distilled to the exclusion of moisture. Ethanol is distilled. Hexachloroplatinic acid hexahydrate and dimethoxyethane are used without further purification. The pretreatment of dichloromethane is described in the above Example 4 described.
- the excess chlorodimethylsilane is distilled off and the residue in 20 ml abs.
- Dichloromethane added.
- the solution is filtered through finely powdered Na 2 SO 4 and the solvent is removed in vacuo.
- the initiator 35 is used without further purification.
- Bis (11-hydroxyundecyl) disulfide is prepared according to known literature [Bain, CB; Troughton, EB; Tao, YT; Evall, J .; Whitesides, GM; Nuzzo, RG, J. Am. Chem. Soc. 111, 321 (1989)].
- N, N-dimethylaminopyridine is used without further purification. The pretreatment of other chemicals and solvents is described in Examples 3 and 5 above.
- reaction solution is concentrated on a rotary evaporator and the residue is taken up in diethyl ether.
- the organic phase is washed with 50 ml of 2N sodium hydroxide solution and three times with 50 ml of dist. Washed water.
- the organic phase is dried over sodium sulfate and the solvent is removed in vacuo.
- Poly (p-hydroxystyrene-co-divinylbenzene) is prepared according to known literature [Spittel, A., diploma thesis, University of Hanover (1991)]. Ethanol is distilled. The pretreatment of other chemicals and solvents is described in the above Examples 3 and 4 are described.
- microgel coated with 30 is filtered off and washed successively with 100 ml of diethyl ether, ethanol, ethanol / water (1/1 v / v), ethanol and diethyl ether.
- the product is dried in a vacuum (10 mbar) at 50 ° C.
- Silica gel (Ultrasil 3370, Degussa) is dried for 36 h at 110 ° C and 10 mbar. Toluene is dried by refluxing it over sodium wire. It is distilled off directly before use. The preliminary The treatment of other chemicals and solvents is described in Examples 3, 5 and 7 above.
- the silica gel is separated from the reaction solution via a frit and then in portions with 150 ml of toluene, ethanol / water (1/1 v / v) pH 3, ethanol / water (1/1 v / v), Washed ethanol and diethyl ether.
- the silica gel coated with 35 is then dried to constant weight at 30 ° C. and 10 mbar.
- the glass beads are separated from the reaction solution and washed successively with 70 ml of toluene, ethanol / water (1/1 v / v) pH 3, ethanol / water (1/1 5 v / v), ethanol and diethyl ether.
- the product is dried for 48 hours at room temperature in a vacuum (10 mbar).
- the ratios of initiator 35 to silica gel used are varied (see Table 1).
- Triethylamine is 1 eq in all experiments. to 3 eq.
- Methyl methacrylate is dried over CaH 2 , distilled under reduced pressure, flushed with argon and stored at -20 ° C. CuBr is used with conc. Washed acetic acid, water and ethanol. N- (n-butyl) -2-pyridylmethanimine is prepared according to known literature [Haddleton, DM; Jasieczek, CB; Hannon, MJ; Shooter, AJ, Macromolecules 30, 2190 (1997)]. The pretreatment of other chemicals and solvents is described in Examples 3 and 13 above.
- Figure 19 shows the GPC chromatogram of the poly (methyl methacrylate).
- the pretreatment of other chemicals and solvents is carried out according to the 18th example.
- the mixture is cooled in an ice bath and diluted with THF.
- the microgel is separated off and extracted with THF in a Soxhiet extractor for 24 h.
- the product is dried under constant weight in a vacuum (10 mbar) at 50 ° C.
- Styrene is dried over CaH 2 , distilled under reduced pressure, flushed with argon and stored at -20 ° C.
- CuCI is made with 5N HCI, water and ethanol washed.
- 2,2'-bipyridine is made from dist. Petroleum ether recrystallized. Methanol is distilled. ( ⁇ ) -Propylene carbonate is used without further purification.
- the silica gel is washed several times with toluene and then with methanol.
- the silica gel is suspended in an Erlenmeyer flask in chloroform and water is added to this suspension. This mixture is stirred vigorously and the aqueous phase is replaced until the blue phase of the aqueous phase is no longer discernible.
- the organic phase is separated from the aqueous. Then the organic suspending agent is largely removed in vacuo. The product is then dried to constant weight at 60 ° C. and 10 mbar.
- Curve 1 is the DSC signal that is obtained the first time it is heated.
- Curve 2 shows the DSC signal that is obtained on the second heating up after the first heating has been programmed to cool down.
- Curve 2 shows the glass transition stage of poly (styrene) in the range between approximately 100 ° C and 110 ° C.
- Fig. 21 shows the FT-IR spectrum of the first generation poly (styrene) on the silica gel surface.
- reaction temperature is set to 90.degree.
- silica gel grafted with pol (styrene) is worked up in the same way. 5
- Isoprene is washed with dilute sodium hydroxide solution and water and dried over CaH 2 . It is distilled under a protective gas and at a temperature of -20 ° C. preserved. The pretreatment of other chemicals and solvents is described in Examples 13 and 21 above.
- silica gel coated with 35 250 mg are placed in a screw-cap test tube with a stirring fish with ice cooling. 10 ml (100 mmol) of isoprene and 312 mg (2 mmol) of 2,2'-bipyridine are added. The reaction mixture is flushed with argon to remove oxygen. Then 102 mg (1.02 mmol) of CuCl are added in a weak protective gas stream and the reaction vessel is tightly closed. The reaction mixture is then heated to 130 ° C. for 14 h under protective gas.
- reaction is cooled in an ice bath and the suspension is transferred to a round bottom flask. 20 ml of toluene are added and the excess isoprene is removed in vacuo. The silica gel coated with poly (isoprene) is separated off by centrifugation and extracted several times with toluene. The product is dried at room temperature in vacuo (10 mbar) to constant weight.
- the DSC curve shows the gias transition stage of the poly (isoprene) between -57 ° C and -50 ° C. 24.
- a heated Schlenk flask is charged with 300 mg of silica gel from the 14th example coated with 36, 4 ml (37 mmol) of methyl methacrylate, 4 ml of diphenyl ether and 71 mg (0.2 mmol) of 4,4'-diheptyl-2,2'-bipyridine.
- the solution is flushed with argon for 10 min.
- 14 mg (0.1 mmol) of CuBr are added to the reaction mixture, rinsed again with argon and the reaction vessel sealed with a septum.
- the reaction mixture is heated under protective gas for 18 h at 90 ° C. in an oil bath. After the mixture has cooled in an ice bath, the reaction mixture is diluted with THF and the coated silica gel is separated off by centrifugation. The silica gel is extracted with THF in a Soxhiet extractor.
- the supernatant solution is removed and the occupied glass beads are washed several times with 20 ml of THF.
- the product is then extracted again with THF in a Soxhiet extractor for 48 h.
- the poly (styrene) silica gel is suspended in chloroform, covered with water, and the aqueous phase is replaced until the aqueous phase is no longer blue.
- the poly (styrene) silica gel is then filtered off from the organic phase and extracted in a Soxhiet extractor with toluene for 12 h.
- the product is then dried to constant weight at 60 ° C. and 10 mbar.
- FIG. 26 shows the DSC curves of the poly (styrene) formed in the first and second generations on the silica surface.
- Curve 1 and curve 2 are the heating curves obtained one after the other, with programmed cooling following the first heating. In both curves, the glass transition stage of poly (styrene) can be seen in the range between 105 ° C and 20 110 ° C.
- the reaction is stopped by cooling in an ice bath. After dilution of the reaction mixture with toluene, the silica gel coated with poly (styrene-b / oc / (- p-tert-butylstyrene) is separated from the reaction solution by centrifugation.
- the solid is washed several times with toluene and finally with methanol
- the silica gel grafted with poly (styrene-ö / oc -p-tert.-butyistyrene) is suspended in toluene, underlayered with water 5 and the aqueous phase is replaced until the aqueous phase is no longer blue in color
- the poly (styrene-block-p-tert-butylstyrene) silica gel is then separated from the organic phase and extracted in a Soxhiet extractor with toluene for 12 h.
- FIG. 29 shows the DSC curves of the 0 poly (styrene-b / oc / fp-tert.-butylstyrene) formed on the silica gel surface.
- the upper curve and the lower curve are the heating curves obtained one after the other, with programmed cooling following the first heating.
- the lower curve clearly shows two glass transition stages of the block copolymer in the range between 100 ° C and 105 ° C and in the range between 137 ° C and 145 ° C.
- the first transition is assigned to the poly (styrene) block, the second transition to the poly (p-tert-butylstyrene) block.
- Trifluoroacetic acid is used without further purification.
- the pretreatment of dichloromethane is described in the above Example 4 described.
- the grafted microgel is separated off via a glass frit and washed with ethanol, ethanol / water (1/1 v / v), ethanol and diethyl ether.
- the product is dried in a vacuum oven at 60 ° C and 10 mbar.
- 500 mg of the silica gel grafted with poly (styrene) from the 21st example are suspended in 150 ml of toluene. 100 mg of p-toluenesulfonic acid monohydrate and 10 ml of methanol are added to this suspension and the reaction mixture is heated under reflux for 16 h. The poly (styrene) solution is then separated from the silica gel by centrifugation. The silica gel is suspended three times in toluene and centrifuged to remove any poly (styrene) still adhering to the silica gel.
- Figure 30 shows the GPC chromatogram of the first generation cleaved poly (styrene).
- Silica gel from Example 22 grafted with poly (styrene) is used. S The procedure and processing are carried out as described in Example 29.
- Fig. 31 shows the GPC chromatogram of the split poly (styrene).
- silica gel grafted with poly (methyl methacrylate) from Example 24 250 mg of silica gel grafted with poly (methyl methacrylate) from Example 24, 75 ml of toluene, 5 ml of methanol and 50 mg of p-toluenesulfonic acid monohydrate are used. The procedure and processing is carried out analogously to that described in Example 29. The silica gel is washed with THF instead of toluene.
- Fig. 33 shows the GPC chromatogram of the split-off poly (styrene) s first and second generation
- 250 mg of the polymer-coated silica gel from Example 27 are suspended in a mixture of 25 ml of toluene, 40 ml of dioxane and 40 ml of 5N sodium hydroxide solution and heated under reflux for 48 h After the aqueous phase has been separated off, the organic phase is concentrated in vacuo. The polymer is then precipitated in methanol. The polymer is again dissolved in toluene and the solution is centrifuged to separate any silica gel particles that may be present. The supernatant solution is carefully removed, concentrated in vacuo, then the polymer precipitated in methanol. The polymer is separated off and dried at 60 ° C. in vacuo (10 mbar).
- Fig. 34 shows the GPC chromatogram of the cleaved poly (styrene-fc / oc / c-p-tert-butylstyrene) s.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Medicinal Preparation (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Silicon Polymers (AREA)
- Graft Or Block Polymers (AREA)
- Silicon Compounds (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polymerisation Methods In General (AREA)
- Materials For Medical Uses (AREA)
Abstract
Description
Claims
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DE19981629T DE19981629D2 (de) | 1998-08-22 | 1999-08-17 | Verfahren zur Herstellung von definierten Schichten oder Schichtsystemen |
EP99945985A EP1124857B1 (de) | 1998-08-22 | 1999-08-17 | Verfahren zur herstellung von definierten schichten oder schichtsystemen |
DE59904996T DE59904996D1 (de) | 1998-08-22 | 1999-08-17 | Verfahren zur herstellung von definierten schichten oder schichtsystemen |
CA002341387A CA2341387C (en) | 1998-08-22 | 1999-08-17 | Method for producing defined layers or layer systems |
AU58525/99A AU5852599A (en) | 1998-08-22 | 1999-08-17 | Method for producing defined layers or layer systems |
US09/763,588 US6653415B1 (en) | 1998-08-22 | 1999-08-17 | Method for producing defined layers or layer systems |
AT99945985T ATE236936T1 (de) | 1998-08-22 | 1999-08-17 | Verfahren zur herstellung von definierten schichten oder schichtsystemen |
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DE19838241A DE19838241A1 (de) | 1998-08-22 | 1998-08-22 | Verfahren zur chemischen Modifizierung von Feststoffoberflächen durch "lebende"/kontrollierte Radikalreaktionen |
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US (2) | US6653415B1 (de) |
EP (1) | EP1124857B1 (de) |
AT (1) | ATE236936T1 (de) |
AU (1) | AU5852599A (de) |
CA (1) | CA2341387C (de) |
DE (3) | DE19838241A1 (de) |
ES (1) | ES2195610T3 (de) |
WO (1) | WO2000011043A1 (de) |
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US7452572B1 (en) * | 2004-03-11 | 2008-11-18 | The North Carolina State University | Procedure for preparing redox-active polymers on surfaces |
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US8062756B2 (en) * | 2005-08-26 | 2011-11-22 | The Regents oft the University of California | Stepwise growth of oligomeric redox-active molecules on a surface without the use of protecting groups |
DE102006009131A1 (de) | 2006-02-24 | 2007-09-06 | Eckart Gmbh & Co.Kg | Mit anorganisch/organischen Mischschichten beschichtete Perlglanzpigmente und Verfahren zu deren Herstellung |
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EP2284275A1 (de) | 2009-08-10 | 2011-02-16 | Sensile Pat AG | Auf Stimuli reagierende Membran |
CA2949948A1 (en) | 2013-05-22 | 2014-11-27 | Triblue Corporation | Methods of forming a polymer layer on a polymer surface |
JP6196169B2 (ja) * | 2014-02-04 | 2017-09-13 | 国立大学法人東北大学 | 表面修飾バイオファイバーの製造方法 |
US9529265B2 (en) | 2014-05-05 | 2016-12-27 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method of preparing and using photosensitive material |
CN112280827B (zh) * | 2020-09-18 | 2022-12-06 | 赛纳生物科技(北京)有限公司 | 一种核壳型核酸固载微球的制备方法 |
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- 1999-08-17 DE DE59904996T patent/DE59904996D1/de not_active Expired - Lifetime
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- 1999-08-17 CA CA002341387A patent/CA2341387C/en not_active Expired - Fee Related
- 1999-08-17 WO PCT/EP1999/006009 patent/WO2000011043A1/de active IP Right Grant
- 1999-08-17 DE DE19981629T patent/DE19981629D2/de not_active Expired - Lifetime
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DE10321039A1 (de) * | 2003-05-10 | 2004-11-25 | Construction Research & Technology Gmbh | Verwendung von Chlorsulfonyl-Verbindungen als ATRP-Initiatoren |
DE102008015365A1 (de) | 2008-03-20 | 2009-09-24 | Merck Patent Gmbh | Magnetische Nanopartikel und Verfahren zu deren Herstellung |
DE102008045308A1 (de) | 2008-09-02 | 2010-03-04 | Merck Patent Gmbh | Dispersionen |
Also Published As
Publication number | Publication date |
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CA2341387A1 (en) | 2000-03-02 |
US20040142171A1 (en) | 2004-07-22 |
DE19838241A1 (de) | 2000-02-24 |
ES2195610T3 (es) | 2003-12-01 |
DE59904996D1 (de) | 2003-05-15 |
EP1124857A1 (de) | 2001-08-22 |
CA2341387C (en) | 2007-04-17 |
DE19981629D2 (de) | 2002-01-24 |
EP1124857B1 (de) | 2003-04-09 |
US6653415B1 (en) | 2003-11-25 |
AU5852599A (en) | 2000-03-14 |
ATE236936T1 (de) | 2003-04-15 |
US6949292B2 (en) | 2005-09-27 |
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