A process for the preparation of polyvinyl chloride (PVC) with controlled molecular weight and molecular weight distribution is disclosed. The polymerization reaction can be initiated by various organic halide initiators in conjunction with a metal catalyst and an optional ligand in organic solvents or water and in the presence of an optional comonomer. The polymerization process provides PVC with a controlled molecular weight and narrow molecular weight distribution. The chlorine containing polymers compositions are useful as, among others, viscosity modifiers, impact modifiers and compatibilizers.
本发明公开了一种制备具有可控分子量和分子量分布的聚
氯乙烯(P
VC)的工艺。聚合反应可由各种有机卤化物
引发剂与
金属催化剂和任选
配体在有机溶剂或
水中并在任选共聚单体的存在下引发。聚合过程可提供分子量可控、分子量分布窄的聚
氯乙烯。含
氯聚合物组合物可用作粘度调节剂、抗冲击调节剂和相容剂等。