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.
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