Polyvinylidene chloride, spectrum

The spectrum of polyvinylidene chloride (CH2CC12) , (PVdC) provides another illustration of the possibility of using the infrared spectrum as a means of obtaining information on the chain configuration. In this case,... [Pg.147]

Polyvinylidene chloride (PVDC), a polymer formed from CH2=CCl2, is diiScult to formulate and is not used for any type of product by itself. It is usually manufactured as a copolymer with various monomers, including acrylonitrile, vinyl chloride, acrylic esters, or methacrylic esters. A unique property of PVDC copolymers is to prevent water and gases from diffusing through the film. In this way, PVDC copolymer films provide a vapor barrier, and are commonly used to wrap foods for storage. The commercial name Saran refers to both the PVDC homopolymer and its copolymers. Reference Spectrum 22 provides the IR and Raman spectra of a vinylidene... [Pg.251]

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