文献类型：期刊文献

中文题名：PP固相接枝及其结晶性能的研究

英文题名：Studies on Solid phase Grafting and Crystalline Properties of PP

作者：阮吉敏[1];潘泳康[1];周达飞[1]

机构：[1]华东理工大学材料科学研究所

年份：1997

卷号：23

期号：6

起止页码：697

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;国家哲学社会科学学术期刊数据库;EI(收录号：1998034142598);Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：聚丙烯;固相接枝;接枝率;结晶性能;GMA

外文关键词：polypropylene; glycidyl methacrylate; solid phase grafting; degree of grafting

摘要：系统研究了甲基丙烯酸缩水甘油酯（ＧＭＡ）与聚丙烯（ＰＰ）的固相接枝反应，探讨了反应温度、引发剂浓度、单体浓度和反应时间等因素对接枝反应的影响。采用红外光谱表征了ＰＰ－ｇ－ＧＭＡ，并用ＷＡＸＤ、结晶速率仪等研究了接枝物的结晶性能。结果表明，在ＢＰＯ引发下，于１００～１４０°Ｃ范围内，ＧＭＡ和ＰＰ可进行固相接枝反应，接枝率最高可达６％。接枝物阻碍了ＰＰβ晶型的生成，结晶速率随接枝率的增加先升后降。
The solid phase grafting reaction for glycidyl methacrylate (GMA) onto polypropylene (PP) was studied in detail, and the influences of various factors, such as reaction temperature, concentration of monomer, concentration of initiator and reaction time, on grafting reaction were also investigated. PP g GMA was characterized with FTIR, its cry stalline properties were studied by WAXD, crystallographic apparatus. The results show that in the initiation of BPO the solid phase grafting reaction of GMA onto PP takes place at temperature from 100 to 140°C. The maxium degree of grafting achieved is about 6%. Reduced β crystal growing of PP is observed for graft copolymer. The speed of crystallization of the graft copolymer decreases initially and then increases with an increase in degree of grafting.