Poly(vinyl alcohol)-poly(vinyl ester) block copolymers
AssigneeWisconsin Alumni Research Foundation
InventorsMahesh Kalyana Mahanthappa, Corinne Elizabeth Lipscomb, Milton Repollet-Pedrosa
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Abstract
Copolymers comprising a block of polyvinyl alcohol) and a block of a polyvinyl ester. Copolymers comprising a block of polyvinyl haloalkanoate) and a block of a polyvinyl ester). Methods of making copolymers comprising a block of polyvinyl alcohol) and a block of a polyvinyl ester. Methods of making copolymers comprising a block of polyvinyl haloalkanoate) and a block of a polyvinyl ester). The copolymers may be incorporated into aqueous dispersions to form micelles or hydrogels. Some copolymers are biodegradable and have surfactant properties.
Claims9
A copolymer comprising a block of poly(vinyl haloalkanoate) and a block of poly(vinyl ester), the block of poly(vinyl haloalkanoate) comprising repeating units of
- wherein X is fluorine or chlorine, q is 0 or 1, r is 2−q, Rx is H, F, Cl, CH3 or (CH2)tCH3, t is 1 to 16, and m is 10 to 12,000;
- and
- the block of poly(vinyl ester) comprises repeating units of
- wherein R is H, C1-C22 straight or branched alkyl or alkylhalide, or phenyl or substituted phenyl, and n is 10 to 12,000,
- wherein the repeating poly(vinyl haloalkanoate) units are not the same as the polyvinyl ester units.
Dependencies are inferred from the claim text.