摘要
利用膨胀计研究了二乙基羟胺(DEHA)对苯乙烯自由基聚合的阻聚和缓聚作用。结果表明,随着苯乙烯自由基聚合体系中DEHA的质量分数由 7. 1×10-5增加到 3. 57×10-4,聚合诱导期延长,聚合速率降低,DEHA对苯乙烯聚合有阻聚和缓聚作用;随着聚合温度升高,DEHA的阻聚作用减弱。
The inhibition and retardation effects of N,N-diethylhdroxyamine (DEHA) on free radical polymerization of styrene were investigated by dilatometry.The results showed that the rate of polymerization of styrene decreased and the induction period increased with the increase of mass fractions of DEHA from 7.1×10^(-5) to 3.57×10^(-4).The DEHA had inhibition and retardation on free radical polymerization of styrene.
出处
《石化技术与应用》
CAS
2005年第2期109-110,共2页
Petrochemical Technology & Application
