HIGH MOLECULAR WEIGHT POLY(VINYL PIVALIC ACID/VINYL ACETIC ACID) COPOLYMER WITH VARIOUS HIGHLY-ALTERNATION AND ITS PREPARATION PROCESS

摘要

The present invention relates to a poly (vinyl pivalate / vinyl acetate) copolymer of high alternating high molecular weight and a method for producing the same, more specifically, vinyl pivalate and vinyl acetate Less than 30 Bulk copolymerization using azobisdimethylvaleronitrile, which may also be disclosed as an initiator, to synthesize a high-shift high molecular weight poly (vinyl pivalate / vinyl acetate) copolymer used as a precursor of a high-shift polyvinyl alcohol. It is about.