 Vinyl chloride-vinyl acetate copolymer

A copolymer containing $-\mathrm{C}{\mathrm{H}}_2-\mathrm{CHCl}-$ and $-\mathrm{C}{\mathrm{H}}_2-\mathrm{CH}(\mathrm{OAc})-$ units. Hydrolysis changes the acetate side groups without requiring cleavage of the carbon backbone, provided competing degradation is controlled.