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1. WO2020089649 - BRANCHED POLYMERS

Publication Number WO/2020/089649
Publication Date 07.05.2020
International Application No. PCT/GB2019/053106
International Filing Date 31.10.2019
IPC
C08F 2/38 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2Processes of polymerisation
38Polymerisation using regulators, e.g. chain terminating agents
C08F 12/36 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
12Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
34Monomers containing two or more unsaturated aliphatic radicals
36Divinylbenzene
C08F 220/20 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
220Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof
02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
10Esters
20of polyhydric alcohols or phenols
C08F 222/10 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
222Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
10Esters
CPC
C08F 12/36
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
12Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
34Monomers containing two or more unsaturated aliphatic radicals
36Divinylbenzene
C08F 122/1006
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
122Homopolymers of compounds having one or more unsaturated aliphatic radicals each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides or nitriles thereof
10Esters
1006of polyhydric alcohols or polyhydric phenols, e.g. ethylene glycol dimethacrylate
C08F 2/38
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2Processes of polymerisation
38Polymerisation using regulators, e.g. chain terminating agents ; , e.g. telomerisation
C08F 220/20
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
220Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
10Esters
20of polyhydric alcohols or phenols ; , e.g. 2-hydroxyethyl (meth)acrylate or glycerol mono-(meth)acrylate
C08F 222/102
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
222Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
10Esters
1006of polyhydric alcohols or polyhydric phenols
102of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
C08F 222/103
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
222Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
10Esters
1006of polyhydric alcohols or polyhydric phenols
103of trialcohols, e.g. trimethylolpropane tri(meth)acrylate
Applicants
  • THE UNIVERSITY OF LIVERPOOL [GB]/[GB]
Inventors
  • RANNARD, Steve
  • CHAMBON, Pierre
  • CASSIN, Savannah
Agents
  • HINDLES LIMITED
Priority Data
1817837.631.10.2018GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) BRANCHED POLYMERS
(FR) POLYMÈRES RAMIFIÉS
Abstract
(EN)
Responsive or degradable branched polymers may be prepared by the free radical polymerisation of a multivinyl monomer in the presence of a chain transfer agent, using a source of radicals, wherein the extent of propagation is controlled relative to the extent of chain transfer to prevent gelation of the polymer. The multivinyl monomer may comprise a cleavable group, for example an ester, or a multiplicity of such groups, between two vinyl groups. Said monomer may be a macromonomer containing multiple cleavage sites.
(FR)
Des polymères ramifiés sensibles ou dégradables peuvent être préparés par polymérisation radicalaire d'un monomère polyvinylique en présence d'un agent de transfert de chaîne, à l'aide d'une source de radicaux, l'étendue de propagation étant commandée par rapport à l'étendue du transfert de chaîne pour empêcher la gélification du polymère. Le monomère polyvinylique peut comprendre un groupe clivable, par exemple un ester, ou une multiplicité de tels groupes, entre deux groupes vinyle. Ledit monomère peut être un macromonomère contenant de multiples sites de clivage.
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