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.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
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
关键词
氯乙烯
悬浮共聚
PMI
耐热
聚氯乙烯
Vinyl chloride, \%N\%\|phenyl maleimide,
Suspension copolymerization\=
