Abstract

This chapter focuses on poly(vinyl) acetate that is of little value in the form of moldings and extrusions because of its high cold flow. However, because of its good adhesion to a number of substrates, and to some extent because of its cold flow, a large quantity is produced for use in emulsion paints, adhesives, and various textile-finishing operations. A minor proportion of the material is also converted into poly(vinyl) alcohol and the poly(vinyl) acetals, which are of some interest to the plastics industry. The International Union of Pure and Applied Chemistry (IUPAC) systematic name for poly(vinyl) acetate is poly-(1-acetoxyethylene) and that for poly(vinyl) alcohol is poly-(1-hydroxyethylene). As with other common polymers, the IUPAC names are not in general use. In addition to the mentioned materials a number of copolymers containing vinyl acetate have been marketed. The chapter also includes information on ethylene-vinyl acetate (EVA) copolymers and vinyl chloride-vinyl acetate copolymers. On the other hand, the commercial ethylene-vinyl alcohol copolymers, although derived from EVA, are considered briefly in the chapter since in weight terms the ethylene component is usually the minor one.

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