Polyvinyl alcohol was used as protective colloid to prepare the PVAC emulsion whose viscosity depended upon the reactivities of polyvinyl alcohol and vinyl acetate. reaction temperature,initator, etc.

• 本文对以聚乙烯醇作保护胶体的聚醋酸乙烯乳液的粘度的影响因素（如聚乙烯酵、醋酸乙烯活性度、反应温度、引发剂等）及反应机理作了探讨。