KINETIC FEATURES AND MOLECULAR-WEIGHT CHARACTERISTICS OF TERPOLYMERIZATION PRODUCTS OF THE SYSTEMS BASED ON VINYL-ACETATE AND 2-TERT-BUTYL-PEROXY-2-METHYL-5-HEXENE-3-YNE

Investigations of terpolymerization kinetics of the system on the basi s of vinyl acetate (VA), peroxidic monomer (VEP) 2-tert-butyl-peroxy-2 -methyl-5-hexene-3-yne, and acrylic acid proved that it falls under th e equation of faintly inhibited copolymerization in which VEP serves a s a comonomer and a chain-transfer agent. The contribution of each sta ge to the summary process rate is defined by the monomer ratio and dep ends on their consumption rate. Combination of a low-active VA monomer and of a VEP faint inhibitor in the system allows the control of the Trommsdorf effect and molecular-weight characteristics of functional o ligoperoxides by changing the component ratio. The new carbon chain ol igomers containing ditertiary alkyl peroxide and polar functional grou ps have practical application as multicenter surface-active radical in itiators of polymerization and structurization. (C) 1998 John Wiley & Sons, Inc.