Method of preparing an aqueous solution comprising vinylpyrrolidone/vinyl acetate copolymers of various molecular weights using a single initiator system consisting essentially of t-Butylperoxypivalate

摘要

Vinylpyrrolidone and vinyl acetate monomers are polymerized using free radical initiator consisting of t-Butylperoxypivalate and preferably in solvent consisting essentially of water, isopropyl alcohol, sec. butyl alcohol or mixtures thereof to produce vinyl pyrrolidone/vinyl acetate copolymer.