polyvinyl alcohol

polyvinyl alcohol
A compound, CH2(CHOH)n, that is soluble in water; an adhesive and emulsifier.

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[USP] a water-soluble synthetic resin, represented by the formula (C2H4O)n, in which n varies between 500 and 5000; used as a viscosity-increasing agent in pharmaceutical preparations and as a lubricant and protectant in ophthalmic preparations.

Medical dictionary. 2011.

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  • polyvinyl alcohol — noun : a polymer of vinyl alcohol; especially : a thermoplastic resin that is soluble or swells in water, that if obtained by complete hydrolysis of polyvinyl acetate has the formula [−CH2CH(OH)−]x or if by partial hydrolysis contains some… …   Useful english dictionary

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  • Polyvinyl-alcohol dehydrogenase (acceptor) — In enzymology, a polyvinyl alcohol dehydrogenase (acceptor) (EC number|1.1.99.23) is an enzyme that catalyzes the chemical reaction:polyvinyl alcohol + acceptor ightleftharpoons oxidized polyvinyl alcohol + reduced acceptorThus, the two… …   Wikipedia

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  • Polyvinyl acetate — (PVA or PVAc) is a rubbery synthetic polymer. It is prepared by polymerization of vinyl acetate monomer, also referred to as VAM. Partial or complete hydrolysis of the polymer is used to prepare polyvinyl alcohol. Hydroylized alcohol product is… …   Wikipedia

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