| polyvinyl | Referring to a compound containing a number of vinyl groups in polymerised form. (05 Mar 2000) |
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| polyvinyl alcohol | <chemical> Ethenol homopolymer. A polymer prepared from polyvinyl acetates by replacement of the acetate groups with hydroxyl groups. It is used as a pharmaceutic aid and ophthalmic lubricant as well as in the manufacture of surface coatings artificial sponges, cosmetics, and other products. Chemical name: Ethenol, homopolymer (12 Dec 1998) |
| polyvinyl alcohol oxidase | <enzyme> Membrane-bound enzyme in pseudomonas sp.; leads to formation of hydrogen peroxide; does not use pyrroloquinoline quinone Registry number: EC 1.1.3.- (26 Jun 1999) |
| polyvinyl chloride | <chemical> Chloroethene homopolymer. A polyvinyl resin used extensively in the manufacture of plastics, including medical devices, tubing, and other packaging. It is also used as a rubber substitute. Residues are present in human body tissues. Chemical name: Ethene, chloro-, homopolymer (12 Dec 1998) |
| polyvinylpyridine n-oxide | <chemical> Poly-2-vinylpyridine-n-oxide. Inhibits the cytotoxic action of quartz and is reported to have delayed the development of experimental silicosis in rats. Chemical name: Pyridine, 2-ethenyl-, 1-oxide, homopolymer (12 Dec 1998) |
| polyvinylpyrrolidone | <chemical> Polymer used to bind phenols in plant homogenates and hence to protect other molecules, especially enzymes, from inactivation by phenols. Also occasionally used to produce viscous media for gradient centrifugation. (18 Nov 1997) |
| polyvinylpyrrolidone-iodine complex | <chemical> A water soluble complex of iodine with polyvinylpyrrolidone. Applied as an antiseptic in the form of solutions or ointments, it releases iodine. Used in cleansing and disinfecting the skin, preparing the skin preoperatively, and treating infections susceptible to iodine. 1-ethenyl-2-pyrrolidone homopolymer complexed with iodine. An iodinated polyvinyl polymer used as topical antiseptic in surgery and for skin and mucous membrane infections, also as aerosol. The iodine may be radiolabelled for research purposes. Synonym: polyvinylpyrrolidone-iodine complex, povidone-iodine. Pharmacological action: anti-infective agents, local, iodophors. Chemical name: 2-Pyrrolidinone, 1-ethenyl-, homopolymer, compd. With iodine (20 Sep 2002) |