中文摘要：

研究了以氯气作为引发剂对PVC进行氯化原位接枝丙烯酸（AA）的过程，对分离纯化后的接枝物进行了表征和分析；同时还测定了接枝共聚物中丙烯酸的接枝率，考察了反应温度、反应时间、单体用量对产物接枝率的影响。结果表明，反应过程生成了聚氯乙烯接枝丙烯酸的共聚物（CPVC-g-AA）；当反应温度为120℃，AA为10份，反应时间为3h时，丙烯酸的最大接枝率达1．21％。

英文摘要：

The graft copolymerization of acrylic acid （AA） onto PVC via in-situ chlorinating graft copolymerization was studied, in which Cl was used as initiator. The graft product （CPVC-g-AA） was characterized by FTIR and GPC after separated and purified, and the feasibility of the graft copolymerization was confirmed. The graft degree was measured by non-aqueous titration, furthermore, the effects of reaction temperature, reaction time and monomer content on the graft degree of CPVC-g-AA were studied. The results showed the optimal graft conditions were reaction temperature 120 ℃, reaction time 3h, AA 10 phr, and the maximum graft degree was 1.21%.