A process for producing polyvinyl acetate by solution polymerization of vinyl acetate and polyvinyl acetate and polyvinyl alcohol

摘要

The present invention relates to a process for producing polyvinyl acetate, wherein azobisdimethylvaleronitrile, which can be initiated at a temperature of 25 ° C to 60 ° C using a methanol solvent, is used as an initiator to produce a high molecular weight polyvinyl alcohol precursor Discloses a method of synthesizing polyvinyl acetate which is used as a polyvinyl acetate resin.;According to the present invention, polyvinyl acetate is synthesized at a low temperature polymerization temperature of 25 to 60 占 폚 and saponified with an aqueous alkaline solution to obtain polyvinyl alcohol having a number average degree of polymerization of 100 to 7,000.