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Results for polymers and  
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Polymers containing amino acid and/or polypeptide moieties in their backbones or pendant to their backbones are made by metathesis. A method of making an amino acid or polypeptide containing polymer includes the steps of: providing a amino acid, amino alcohol, or polypeptide-containing monomer; forming a reaction mixture by contacting the monomer with an agent capable of catalyzing the polymerization of the monomer into a polymer; and placing the reaction mixture under conditions that result in ...
The invention relates to novel reactive polymers of formula ##STR1## wherein the variables are as defined in the claims. The polymers of the invention are useful for the modification of material surfaces and are particularly suitable for providing biomedical articles such as contact lenses with a hydrophilic coating.
The present invention relates to polymers of the general formula I: ##STR1## in which M.sup.1, M.sup.1', M.sup.2 denote a recurring monomer unit from the group: acrylate, methacrylate, 2-chloroacrylate, 2-phenylacrylate; w, w.sup.1, w.sup.2 are molar fractions of the comonomers with 0<w.ltoreq.1, 0.ltoreq.w.sup.1 <1 and 0.ltoreq.w.sup.2.ltoreq.0.5; S.sup.1 and S.sup.1', independently of one another, denote a straight-chain or a branched alkylene group --(CH.sub.2).sub.r --; D, D', independ...
A range of extruded polymers incorporating synthetic furanones was manufactured and field tested. Polymers incorporating furanones showed excellent antifouling efficacy and significantly reduced fouling for more than 100 days. The present inventors have developed polymers that release commercial short-lived biocides or analogues of antifouling compounds isolated from marine algae. A range of polymers incorporating either the commercial isothiazolone Sea-Nine 211.TM. or a halogenated furanone wer...
A method is provided for producing hyperbranched polymers comprising heating a polymerizable reaction charge comprising (a) a monomer mixture comprising 50-99.1% by weight of at least one monoethylenically unsaturated monomer and 0.1-50% by weight of one or more multiethylenically unsaturated monomers and (b) if at least one ethylenically unsaturated monomer of the monomer mixture is not a thermally initiating monomer, a free radical polymerization initiator, to a temperature in the range from a...
A photoactive polymer of the general formula I: ##STR1## in which: P is a photoactive group which can photoisomerise and/or photodimerise; B represents an aromatic or alicyclic group, or B further represents a nitrogen atom or --CR.sup.2 --; A, C, D each independently of the other represents an aromatic or alicyclic group; M represents a repeating monomer unit in a homo- or copolymer; S.sup.1, S.sup.2, S.sup.3, S.sup.4, S.sup.5 represent a single covalent bond or a spacer unit; n.sup.1, n.sup.2 ...
Process for preparing a thermosetting coating composition comprising; (a) mixing (i) a cleavable carbonyl polymer having an activated carbonyl group adjacent to oxygen or nitrogen, in the backbone, and having a molecular weight greater than 5,000 (ii) a multifunctional compound having a molecular weight less than 5,000 having a functional group capable of reacting with the cleavable carbonyl polymer to cleave the polymer at the carbonyl group and bond with the cleaved polymer, the compound havin...
A substituted polysaccharide comprising .beta..sub.1-4 linkages having covalently bonded on the polysaccharide moiety thereof, at least one deposition enhancing group which undergoes a chemical change in water at a use temperature to increase the affinity of the substituted polysaccharide to a substrate, the substituted polysaccharide further comprising one or more independently selected silicone chains.
A polymer comprising: a polymeric backbone comprising at least one unit having the structure (I), wherein R-R.sup.4 comprise groups selected from the group consisting of H, C.sub.1 -C.sub.12 alkyl, C.sub.6 -C.sub.18 aryl, C.sub.7 -C.sub.18 aralkyl, C.sub.6 -C.sub.18 cycloalkyl or any of the group consisting of C.sub.1 -C.sub.12 alkyl, C.sub.6 -C.sub.18 aryl, C.sub.7 -C.sub.18 aralkyl, C.sub.6 -C.sub.18 cycloalkyl substituted, within the carbon chain or appended thereto, with one or more heteroat...
Polymers may be made from zwitterionic monomers having controlled architectures and molecular weights, using living polymerisations such as group or atom transfer radical polymerisation. For instance polymers may be formed by atom transfer radical polymerisation using a copper chloride catalyst, a ligand which is water soluble, and a water soluble tertiary alkyl halide initiator to form homopolymers having controlled polydispersities of less than 1.5 and block copolymers with other hydrophilic o...
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