以氯化聚乙烯为原料 ,氯气和二氧化硫为反应气体气固法合成了氯磺化聚乙烯 ,研究了气体有效浓度、气体配比、引发方式对氯磺化反应的影响。气体有效浓度增加 ,氯磺化反应速率增加 ,氯气和二氧化硫的体积配比以 1∶ 1为佳。紫外光可有效引发该反应 ,但即使在黑暗状态下该反应也可进行。另外 ,氯化氢对氯磺化反应的速率有促进作用 ,氧气的存在使氯磺化反应速率提高 ,而且合成的氯磺化聚乙烯具有更高的硫含量。 The chlorosulfonated polyethylene was synthesized by gas-solid method using chlorinated polyethylene as raw material and chlorine and sulfur dioxide as reaction gases. The effects of gas effective concentration, gas ratio and initiation mode on the chlorosulfonation reaction were studied. Gas effective concentration increases, chlorosulfonation reaction rate increases, chlorine and sulfur dioxide volume ratio of 1: 1 is better. Ultraviolet light can effectively trigger the reaction, but the reaction can proceed even in the dark. In addition, hydrogen chloride promotes the rate of chlorosulfonation reaction, the presence of oxygen increases the chlorosulfonation reaction rate, and the synthesized chlorosulfonated polyethylene has a higher sulfur content.