Polymer surfactants of poly(vinyl alcohol)(PVA)are used as emulsifier in vinyl monomer emulsion polymerization and dispersent in VC suspension polymerization.

• 聚乙烯醇(PVA)系高分子表面活性剂,可用作乙烯基单体乳液均聚或共聚的乳化剂和氯乙烯(VC)悬浮聚合的分散稳定剂。