光引发阳离子聚合反应的研究Ⅲ．硫鎓盐BDS引发环氧化合物光聚合的DSC研究  

Study on Photoinitiated Cationic Polymerization Ⅲ. DSC Study on Photopolymerization of Epoxides Initiated with Sulfonium Salt BDS

作　　者：陈用烈[1] 郑牧[1] 梁兆熙[1] 

机构地区：[1]中山大学高分子研究所,中国科学院广州化学研究所

出　　处：《应用化学》1994年第2期27-30,共4页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金资助项目

摘　　要：用改装的国产ＣＤＲ－１型ＤＳＣ仪研究了苯基缩水甘油醚（ＰＧＥ）和环氧树脂（Ｅ－５１）以双－［４－（二苯硫基）苯基）硫－二－六氟化磷引发的光聚合。研究了引发剂浓度、光强、温度等因素对聚合反应的影响，对于ＰＧＥ，聚合速率与引发剂浓度的０．９０次方、与光强的０．７８次方成比例，对于Ｅ－５１，聚合速率与引发剂浓度的０．８７次方成比例，而与光强的关系则比较复杂，温度分别超过７０℃（对ＰＧＥ）或８０℃（对Ｅ－５１）后，对提高聚合反应速率的作用已不明显。作为活性稀释剂，ＰＧＥ可以较大地提高Ｅ－５１的聚合速率。The photopolymerization of phenylglycidylether(PGE)and an epoxy resin (E-51)initiated by bis-[4-(diphenylsulfonio)phenyl]sulfide-bis-hexafluorophosphate[BDS(PF6)2]has been studied using a modified home-made CDR-1 model differential scanning calorime-ter. For PGE,the polymerization rate was proportional to the 0.90 power of the initiatorconcentration and to the 0.87 power of the light intensity. For E-51,the polymerization ratewas proportional to the 0.78 power of the initiator concentration, whereas the influence oflight intensity was rather complicated.The polymerization rate increased with temperaturemarkedly at≤70℃(for PGE) or≤80℃(for E-51).PGE as a reactive diluent greatly in-creased the polymerization rate of E-51.

关 键 词：苯基 缩水甘油醚 光聚合 DSC 

分 类 号：O631.5[理学—高分子化学]