氯乙烯/N-苯基马来酰亚胺悬浮共聚合速率的研究  

Studies on Suspension Copolymerization Rate of\=Vinyl Chloride and \%N\%\|Phenyl Maleimide

作　　者：杜淼[1] 翁志学[1] 单国荣[1] 黄志明[1] 潘祖仁[1] 

机构地区：[1]浙江大学高分子科学与工程研究所

出　　处：《高等学校化学学报》1999年第2期304-308,共5页Chemical Journal of Chinese Universities

基　　金：国家教育部博士点基金

摘　　要：考察了单体配比、温度、引发剂浓度诸因素对氯乙烯（ＶＣ）／Ｎ－苯基马来酰亚胺（ＰＭＩ）悬浮共聚速率的影响．ＶＣ／ＰＭＩ共聚有显著的交叉终止，致使共聚速率降低，测得交叉终止速率常数的函数＝５．７７，ＰＭＩ均聚综合速率常数的倒数值δ２＝５３．６５，共聚表观活化能Ｅａ＝１２７．９ｋＪ／ｍｏｌ，增长活化能Ｅｐ＝６３．７ｋＪ／ｍｏｌ，聚合速率对引发剂浓度的反应级数为０．７８６．The effects of monomer ratio, temperature and initiator concentration on the copolymerization rate of vinyl chloride(VC)/\%N\%\|phenyl maleimide(PMI) were studied. The cross termination \%\% and the reciprocal of the comprehensive rate \%\%\-2 were measured to be 5\^77 and 53\^65, respectively. The results showed that the copolymer composition of VC/PMI will largely change with the conversion. The activation energy of VC/PMI copolymerization and the propagation reaction are 127\^9 kJ/mol and 63\^7 kJ/mol, respectively. The order of initiator is 0\^786. The reaction rates between VC/PMI and VC/\%N\%\|cyclohexyl maleimide (CHMI) are compared, and the later is more rapid than the former.

关 键 词：氯乙烯 悬浮共聚 PMI 耐热 聚氯乙烯 

分 类 号：O632.21[理学—高分子化学] O633.22[理学—化学]