PROCESS FOR PREPARING VINYL CHLORIDE POLYMERS MODIFIED BY LACTONE POLYMERS; NEW VINYL CHLORIDE POLYMERS MODIFIED BY LACTONE POLYMERS

摘要

in a first step, we polymerized by means of iona lactone in the vinyl chloride to the intervention.the catalyst comprising the product of the reaction.optionally, a complex with tetrahydrofuran.metal alkyl alcohol with an unsaturated u00e9thylu00e9niquement, possiblythe presence of water, and, in a second step, we polymerized thereinvinyl chloride in aqueous suspension and free radicalin the presence of polymerization from the stagefirst, possibly supplemented with other unsaturated monomers.the invention also relates to novel polymersvinyl chloride polymers modified withlactones of the number average molecular weight is less than15 grafted polymers of vinyl chloride.