摘要
研究了ＬＤＰＥ悬浮接枝ＰＳ合成ＬＤＰＥ－ｇ－ＰＳ接枝共聚物的工艺，此接枝共聚物可作为某些聚合物共混的相容剂。讨论了苯乙烯溶胀ＬＤＰＥ时间、引发剂浓度和ＬＤＰＥ与苯乙烯投料比对接枝率的影响，发现溶胀时间为４ｈ、反应时间为８ｈ、引发剂浓度为１％时、ＬＤＰＥ与苯乙烯投料比为１∶１时，其接枝共聚物接枝率最大可达３８．５％。并对ＬＤＰＥ－ｇ－ＰＳ接枝共聚物进行了ＤＳＣ、ＩＲ及接枝率测定的表征。
A technology was conducted to synthesize LDPE g PS grat copolymer by suspension graft polymerization. This graft copolymer can be used for the compatibilizer of some polymer blends. Effects on grafting degree such as swelling time of LDPE by styrene. time of reaction、 initiator content and ratio of LDPE to styrene have been discussed. It has been found that the maximum grafting degree is 38.5% when swelling time、 reacting time. initiator content and LDPE styrene ratio are 4 h、 8 h、 1%、 1∶1.0 respectively LDPE g PS graft copolymer was also investigated through DSC、 IR and grafting degree measurement.
出处
《南京化工大学学报》
1996年第4期38-43,共6页
Journal of Nanjing University of Chemical Technology(Natural Science Edition)
关键词
低密度聚乙烯
聚苯乙烯
悬浮聚合
low density polvethylene polystyrene syspension copolymerization grafting
