氯乙烯-马来酸二乙酯共聚树脂(氯-马树脂)是一种聚氯乙烯改性树脂。其特点为:可以用廉价的氯化石蜡代替增塑剂DBP,而树脂仍具有好的使用性能。本工作是先将氯-马树脂样品进行童沉淀分级,取得分子量较均一的各个级场,然后用快速动态渗透压和静态渗透压法测走其数均分子量;用光散射法测定其重均分子量;用粘度法测 Vinyl chloride - maleic acid diethyl ester copolymer resin (chlorine - horse resin) is a polyvinyl chloride modified resin. Its characteristics are: you can use cheap chlorinated paraffin instead of plasticizer DBP, while the resin still has good performance. In this work, chloride-horse resin samples were first subclassified by child precipitation, and each level field with a relatively uniform molecular weight was obtained. Then the number average molecular weights were determined by rapid dynamic and static osmotic methods. Molecular weight; measured by viscosity method