Polymer and Materials Science
Wiley InterScience Backfile Collection 1832-2000
Chemistry and Pharmacology
Copolymerizations of 3-vinyl-1,4-butyrolactone (1) and acrylonitrile (2) initiated by dibenzoyl peroxide or 2,2′-azoisobutyronitrile were carried out. The following reactivity ratios were found for the bulk copolymerization at 70°C for 1: r1 = 0,078±0,037 and for 2: r2 = 4,7±0,3. In addition the values Q1 = 0,033 and e1 = 0,053 were obtained. The ring opening and the ring closing of the lactone moiety in the polymer with an alkaline and an acid were found to be reversible.
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