制备新型相容剂──聚丙烯固相接枝苯乙烯的研究  

STUDY ON COMPATIBILIZER OF SOLID PHASE GRAFTING STYRENE ONTO POLYPROPYLENE

作　　者：李乔钧[1] 李春成[1] 芮峥嵘 朱学海[1] 潘恩黎[1] 

机构地区：[1]南京化工大学高分子系

出　　处：《高分子材料科学与工程》1996年第3期40-44,共5页Polymer Materials Science & Engineering

基　　金：江苏省科委基金

摘　　要：用固相接枝共聚方法制备聚丙烯接枝苯乙烯共聚物（ＰＰ－ｇ－ＰＳ），详细考察了聚丙烯与引发剂的品种、反应温度、苯乙烯与引发剂的浓度等因素对接枝率的影响。结果表明，ＰＰ－ｇ－ＰＳ具有较高的接枝率。共聚ＰＰＪ３４０与ＰＰ粉料的接枝率均较均聚ＰＰＦ４０１为高；将３种引发剂（ＢＰＯ、ＴＢＰ、ＤＣＰ）进行比较，在相同的条件下，以ＴＢＰ作为引发剂的接枝率最高；接枝率随Ｓｔ／ＰＰ质量比增大与反应温度的提高而提高。将ＰＰ－ｇ－ＰＳ应用于聚丙烯／聚苯乙烯（ＰＰ／ＰＳ）共混物中，能降低分散相ＰＳ的粒径与提高ＰＰ／ＰＳ的相容性。The grafting rate and grafting effect influenced by factors of PP and initiator types, reaction temperature. concentration of initiator and styrene etc were examined in detail.The PP-g-PS has higher grafting rate.The graft rate of either copolymer PPJ340 or PP powder was higher than that of homopolymer PPF401.Comparing three kinds of initiators (BPO,TBP,DCP)under same condition,the graft rate of TBP is the highest one. The graft rate elevates along with increasing of St/PP quality ratio and raising of reaction temperature. PP-g-Ps applied into polypropylene/polystyrene (PP/PS) blend can decrease dispersed phase PS size in PP and elevate com patibility of PP/PS.

关 键 词：聚丙烯 苯乙烯 接枝共聚 

分 类 号：O631.5[理学—高分子化学] TQ325.204[理学—化学]