文献类型：期刊文献

中文题名：BA悬浮溶胀接枝聚合PVC的制备与性能研究

英文题名：Study on synthesis and performances of grafted PVC by BA suspending swelling polymerization

作者：贺瑞玲[1];王庆海[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2008

卷号：36

期号：7

起止页码：18

中文期刊名：聚氯乙烯

外文期刊名：Polyvinyl Chloride

语种：中文

中文关键词：PVC;BA;水相悬浮;溶胀聚合;接枝率;相容性;流变性

外文关键词：PVC; BA; water phase suspending; swelling polymerization; grafting ratio; compatibility; rheological property;

摘要：采用水相悬浮溶胀聚合的方法在PVC颗粒内部原位接枝丙烯酸丁酯(BA),考察了反应温度、分散剂用量对接枝反应和颗粒形态的影响,结果表明:接枝率随反应温度的升高而增大,分散剂用量为1.0份时,产物的颗粒形态规则,与PVC共混物的力学性能较好。PVC-g-BA/PVC共混体系动态力学性能分析(DMA)的结果表明:两相呈微观相态分离的结构特点;转矩流变性能测试结果表明:交联剂用量为3份时,PVC-g-BA/PVC共混体系的塑化性能较好。
BA was in situ grafted into PVC particles by swelling polymerization in water phase suspending system.The effects of reaction temperature and stabilizer agent content on the grafting reaction and particle morphology were investigated.It was found that grafting ratio increased with reaction temperature,particle morphology of the products was regular and the mechanical properties of its blends with PVC were better when dispersing agent amount was 1.0 part.The results of dynamic mechanical analysis(DMA) of PVC...