WO2004009675A1 - Hydrophile polyorganosiloxane - Google Patents
Hydrophile polyorganosiloxane Download PDFInfo
- Publication number
- WO2004009675A1 WO2004009675A1 PCT/EP2003/050304 EP0350304W WO2004009675A1 WO 2004009675 A1 WO2004009675 A1 WO 2004009675A1 EP 0350304 W EP0350304 W EP 0350304W WO 2004009675 A1 WO2004009675 A1 WO 2004009675A1
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- WO
- WIPO (PCT)
- Prior art keywords
- epoxy
- functional
- methyl
- radical
- mol
- Prior art date
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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
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/06—Preparatory processes
- C08G77/10—Equilibration processes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
- C12N11/02—Enzymes or microbial cells immobilised on or in an organic carrier
- C12N11/08—Enzymes or microbial cells immobilised on or in an organic carrier the carrier being a synthetic polymer
- C12N11/089—Enzymes or microbial cells immobilised on or in an organic carrier the carrier being a synthetic polymer obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/46—Block-or graft-polymers containing polysiloxane sequences containing polyether sequences
Definitions
- the invention relates to epoxy-functional, hydrophilic and free-radically hardenable polyorganosiloxanes, their production and use.
- polyorganosiloxanes Due to their chemical structure, polyorganosiloxanes have a number of specific properties, such as chemical and thermal stability, UV stability, flexibility, elasticity, low water absorption, good dielectric properties and non-toxic behavior. Because of these properties and possible combinations of properties, polyorganosiloxanes are used in many areas of technology. It is particularly noteworthy that polymeric polyorganosiloxanes are molten up to molasses of approx. 150,000 and are therefore particularly suitable for use in impregnation and coating systems, adhesives, release agents, resists, masking compounds, reflective and protective layers and for other special purposes, in particular also in medicine and medical technology.
- the range of properties of the polyorganosiloxanes can be specifically changed or adapted to various technical requirements by varying the chain-like organic residues or by introducing suitable functional groups.
- the related prior art is comprehensively presented, inter alia, in EP 0 562 369 B1.
- Biosensors are increasingly used here in which a biological detection system is linked to a physical transducer (A. Kerk, Nachr. Chem. Tech. Lab., 1999, 7, 777-779; JM Kauffann, BlOforum, 2000 , 4, 19-21; F. Hanel, HP Saluz, BlO Forum, 1999, 9, 504-507).
- the recognition systems themselves are formed from biological recognition molecules, such as antibodies, enzymes and nucleic acids, which are bound or immobilized on a support via an immobilization layer.
- Two-dimensional, but also three-dimensional biological detection layers are described in the literature. E. Katz, I. Willner, Angew. Give a broad overview of the structure of almost two-dimensional biological layers. Che. , 2000, 112, 1230-1269.
- the company Schleicher & Schüll GmbH uses a three-dimensional immobilization layer for its product called FAST TM Slides DNA chips, in which the catcher oligos are immobilized in a three-dimensional nitrocellulose membrane (Schleicher & Schüll, BioMolecular Screening, Catalog 2001 (int. Ed.).
- EP 0 562 369 B1 and EP 0 562 372 B1 describe a liquid, free-radically crosslinkable polyorganosiloxane for the construction of such selectively recognizing layers for sensory applications, which additionally contains linker groups for coupling biological or chemical function carriers.
- linker groups for coupling biological or chemical function carriers.
- the double bond group (methacrylic acid residue) ensures the production of a three-dimensional network by, for example, radical polymerization, ie either thermal or UV curing.
- the epoxy-functional group ie the glycidyl ether residue, is used due to its high hen reactivity, for example towards amino groups, as a coupling group function in order to be able to equip this layer with selective recognition molecules.
- the hydrophilicity of the matrix which is not yet sufficient for the finishing with biological function carriers, has proven to be disadvantageous. Since the field of bio or DNA chip sensors is used almost exclusively in an aqueous environment, an exchange of materials with such an immobilization matrix cannot be achieved satisfactorily.
- the hydrophilicity of the matrix can be increased to such an extent that, for example, enzymes, such as glucose oxidase, maintain their functionality Layer can be immobilized.
- this represents a further and sometimes complex process step which is process incompatible in the context of the realization of a microstructured DNA chip with an immobilization matrix based on functionalized polysiloxanes.
- the object of the present invention is therefore to provide a polyorganosiloxane which can be UV-crosslinked by free-radical polymerization and which, on the one hand, has epoxy-functional side chains for the covalent binding of corresponding biomolecules, i.e. Detection molecules with compatible linker groups, contains, and on the other hand is already equipped with hydrophilic side chains in order to enable the exchange of substances or the biocompatibility in an aqueous environment.
- An essential aspect of this task is not only the increase in the hydrophilicity of the polyorganosiloxanes according to the invention, but also the targeted adjustability of the hydrophilicity and the variability of the crosslinking density.
- the present invention accordingly relates to (totally) polymerizable, epoxy-functional, hydrophilic polyorganosiloxanes having the following general structure:
- R 1 lower alkyl group with preferably 1 to 4 carbon atoms
- the present invention achieves the stated object in part by using the basic components and synthesis synthesis as described in EP 0 562 369 B1.
- special, synthetically produced polyalkylene glycol ether side chains are introduced.
- the proportion of these side chains can be varied within wide limits and enables the desired selectability of hydrophilicity.
- This new compound class of double-containing, epoxy-functional and polyorganosiloxanes with hydrophilic side chains has a high storage stability of at least six months at 4 ° C, good applicability through modern coating methods such as Spm-Coatmg, Drop-Coatmg, dispensing, and are therefore suitable and due to the good layer formation properties for use in many areas of technology, especially for coating a wide variety of substrates.
- reaction mediators or diluents such as (Tr ⁇ - (meth) - acrylates, di- and mono-functional polyethylene glycol (meth) - acrylates, which can themselves be hydrophilic, m the new polymer matrix, an additional variation possibility of the hydrophilicity and in particular the crosslinking density is possible.
- the (photo) polymerizable group Z is introduced preferably by addition of a (photo) polymerizable compound, preferably ⁇ as acrylic acid or methacrylic acid to a xankette at the silo located radical E.
- the hydrophilic radical Y is preferably a polyalkylene glycol ether, in particular a polyethylene glycol ether compound.
- Polyorganosiloxanes which are particularly preferred in the context of the present invention, in particular with regard to their hydrophilicity, are the following:
- the present invention also relates to a process for the preparation of the epoxy-functional hydrophilic polyorganosiloxanes by
- steps b) and c) can optionally and preferably also be carried out simultaneously
- a selective and partial opening of the remaining epoxy-functional side chains with alkylene glycol ether, preferably (mono-, di-, tri- or tetra-) alkylene glycol ether is carried out.
- alkylene glycol ether preferably (mono-, di-, tri- or tetra-) alkylene glycol ether
- the alkyl groups of the starting compounds mentioned are preferably lower alkyl groups having 1 to 4 carbon atoms, preferably methyl groups.
- the glycol ether used for the hydrophilization is preferably a mono-, di-, t ⁇ - or tetra-ethylene glycol ether.
- Hydrosilylation is an established process for the functionalization of polysiloxanes.
- the usual reaction conditions are well suited for the generation of side-chain-functional polysiloxanes.
- i. H. problems sometimes arise with a combination of double-bonded, epoxy-functional and hydrophilic side chains, which is why one has to select other reaction conditions.
- the hydrosilylation steps are carried out using m 2-butanone as a solvent in the presence of a catalyst at a slightly elevated temperature.
- the reaction temperature is preferably 44-55 ° C and 10 ⁇ 10 equ. H2PtClg used. at
- the polyorganosiloxanes according to the invention can be produced in a wide variety in compliance with these reaction conditions.
- the polyorganosiloxanes according to the invention are particularly well suited for the formation of three-dimensional immobilization layers for chemical or biological function carriers, although their application is not intended to be restricted to this area.
- the systems according to the invention show a wide variation in the number of double-bonded, epoxy-functional and hydrophilic side chains in the polyorganosiloxane (EPS150H), a miscibility with the reactive tionsvernetzern or intermediaries, as indicated above, pelbmdungs termen in a wide variable mixing ratio, an adjustable crosslink density and hydrophilicity by the number of dop ⁇ and hydrophilic side chains of the Polyor- ganosiloxanes (EPS150H) on the one hand and by the simultaneous use of appropriate Christsvernetzern or - intermediaries to the other.
- EPS150H polyorganosiloxane
- EPS150H Polyor- ganosiloxanes
- the mixture is then pressure-filtered: the main part of the volatile components is distilled off under an oil pump vacuum (0.1 mbar) at a bath temperature of 120 ° C.
- the raw product is finally cleaned using a thin-film evaporator at 0.05 mbar and a heating temperature of 130 ° C.
- the equilibration product poly- [dimethyl] c Q [hydro-methyl] ⁇ , -siloxane (1) is obtained as a clear, viscous liquid.
- the yield is 360.2 g (77.6% of theory), the SiH value of the product is determined to be 0.59 mol / 100 g (Th. 0.57 mol / 100 g).
- poly- [dimethyl] 90 - [hydro-methyl] 30 - [methyl- (3-ox ⁇ - ranylmethoxy-1-propyl)] 30 -s ⁇ loxane (2) is obtained as a clear, viscous liquid.
- the yield is 41.2 g (89.1% of theory), the SiH value of the product becomes 0.21 mol / 100 g (Th. 0.22 mol / 100 g), the epoxy value 0.21 mol / 100 g (Th. 0.21 mol / 100 g).
- the reaction mixture is stirred at 50 ° C. until the volumetrically determined SiH content has reached a constant value. This is the case after 48 hours at the latest.
- a 10-fold excess, based on H-PtCl 6 , of cross-linked polyvinylpyridm is added and the mixture is stirred at room temperature for 2 hours.
- the solids are filtered off, the solvent is largely on a rotary evaporator in a water jet vacuum distilled off.
- the remaining volatile constituents are distilled off at 70 ° C. in an oil pump vacuum (0.1 mbar).
- the yield is 9.2 g (80.1% of theory), the SiH value of the product becomes 0.11 mol / 100 g (Th. 0.12 mol / 100 g), the epoxy value 0.13 mol / 100 g (Th. 0.12 mol / 100 g).
- Reaction mixture stirred for 10 h at an oil bath temperature of 50 ° C.
- the reaction mixture is then allowed to cool to room temperature, 2.5 g (25 mmol) of acidic aluminum oxide are added and the mixture is stirred for 2 hours.
- the solids are filtered off and the solvent or the volatile constituents are distilled off in an oil pump vacuum on a rotary evaporator at room temperature.
- the yield is 15.7 g (89 l of theory), the SiH value of the product becomes 0.12 mol / 100 g (0.11 mol / 100 g), the epoxy value 0.13 mol / 100 g (Th. 0.14 mol / 100 g) determined.
- the reaction mixture is stirred at 50 ° C. until the volumetrically determined SiH content has reached a constant value. This is the case after 48 hours at the latest. After cooling to room temperature, a 10-fold excess, based on H 2 PtCl 6 , of crosslinked polyvinylpyride is added and the mixture is stirred at room temperature for 2 hours.
- the yield is 8.6 g (84.9% of theory), the SiH value of the product becomes 0.09 mol / 100 g (Th. 0.10 mol / 100 g), the epoxy value is 0.14 mol / 100 g (Th. 0.13 mol / 100 g).
- the yield is 20.9 g (88.7% of theory), the SiH value of the product becomes 0.10 mol / 100 g (Th. 0.09 mol / 100 g), the epoxy value 0.10 mol / 100 g (Th. 0.09 mol / 100 g).
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- Organic Chemistry (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Genetics & Genomics (AREA)
- Wood Science & Technology (AREA)
- Biomedical Technology (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03765118A EP1523514A1 (de) | 2002-07-18 | 2003-07-10 | Hydrophile polyorganosiloxane |
AU2003255530A AU2003255530A1 (en) | 2002-07-18 | 2003-07-10 | Hydrophilic polyorganosiloxanes |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10232696.7 | 2002-07-18 | ||
DE10232696 | 2002-07-18 | ||
DE10319563A DE10319563A1 (de) | 2002-07-18 | 2003-04-30 | Hydrophile Polyorganosiloxane |
DE10319563.7 | 2003-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004009675A1 true WO2004009675A1 (de) | 2004-01-29 |
Family
ID=30771715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/050304 WO2004009675A1 (de) | 2002-07-18 | 2003-07-10 | Hydrophile polyorganosiloxane |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1523514A1 (de) |
AU (1) | AU2003255530A1 (de) |
WO (1) | WO2004009675A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007027276A1 (en) * | 2005-08-31 | 2007-03-08 | Kimberly-Clark Worldwide, Inc. | Hydrophilic silicone elastomers |
WO2008041187A2 (en) * | 2006-10-03 | 2008-04-10 | Centre National De La Recherche Scientifique | Method for treating surfaces containing si-h groups |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0468270A1 (de) * | 1990-07-21 | 1992-01-29 | Th. Goldschmidt AG | Verwendung von mit Oxyalkylenethergruppen modifizierten Epoxypolysiloxanen als härtbare Beschichtungsmittel |
EP0562373A2 (de) * | 1992-03-23 | 1993-09-29 | Siemens Aktiengesellschaft | Immobilisierung biochemischer Substanzen |
EP0562369A1 (de) * | 1992-03-23 | 1993-09-29 | Siemens Aktiengesellschaft | Polysiloxane |
EP0562372A2 (de) * | 1992-03-23 | 1993-09-29 | Siemens Aktiengesellschaft | Biosensor |
-
2003
- 2003-07-10 EP EP03765118A patent/EP1523514A1/de not_active Withdrawn
- 2003-07-10 WO PCT/EP2003/050304 patent/WO2004009675A1/de not_active Application Discontinuation
- 2003-07-10 AU AU2003255530A patent/AU2003255530A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0468270A1 (de) * | 1990-07-21 | 1992-01-29 | Th. Goldschmidt AG | Verwendung von mit Oxyalkylenethergruppen modifizierten Epoxypolysiloxanen als härtbare Beschichtungsmittel |
EP0562373A2 (de) * | 1992-03-23 | 1993-09-29 | Siemens Aktiengesellschaft | Immobilisierung biochemischer Substanzen |
EP0562369A1 (de) * | 1992-03-23 | 1993-09-29 | Siemens Aktiengesellschaft | Polysiloxane |
EP0562372A2 (de) * | 1992-03-23 | 1993-09-29 | Siemens Aktiengesellschaft | Biosensor |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007027276A1 (en) * | 2005-08-31 | 2007-03-08 | Kimberly-Clark Worldwide, Inc. | Hydrophilic silicone elastomers |
US7452957B2 (en) | 2005-08-31 | 2008-11-18 | Kimberly-Clark Worldwide, Inc. | Hydrophilic silicone elastomers |
WO2008041187A2 (en) * | 2006-10-03 | 2008-04-10 | Centre National De La Recherche Scientifique | Method for treating surfaces containing si-h groups |
EP1911791A1 (de) * | 2006-10-03 | 2008-04-16 | Institut Curie | Verfahren zum Behandeln von Oberflächen mit Si-H Gruppen |
WO2008041187A3 (en) * | 2006-10-03 | 2008-06-12 | Centre Nat Rech Scient | Method for treating surfaces containing si-h groups |
US10465055B2 (en) | 2006-10-03 | 2019-11-05 | Centre Nationale De Recherche Scientifique | Method for treating surfaces containing Si—H groups |
Also Published As
Publication number | Publication date |
---|---|
AU2003255530A1 (en) | 2004-02-09 |
EP1523514A1 (de) | 2005-04-20 |
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