摘要
丙烯酸氯代酯CH_2=CHCDO(CH_2)_nCl(n=2、3、4、6)和(CH_2=CHCOOCH_2 Cl用AIBN引发可以和苯乙烯发生自由基共聚合反应。在本工作中,控制转化率小于10％,用YBR方法求初值,YM二元线性回归法系统测定了60℃时各单体对的竞聚率。它们的一个共同特点是T_1<1和T_2<1,表明共聚属于无规共聚。接着用Q-e方程估算了丙烯酸氯代酯的Q和e值,0<Q<1,e>0。本文讨论了烷基链长对丙烯酸氯代酯单体的活性以及Q和e值的影响。
A senses of chloroalkyl acrylatesCH2 = CHCOO (CH2)n (n = 2, 3,4,6 ) and CH2 = CHCOOCH2-Cl could be radical copolymerizcd with styrene (M1) at 60℃ in the presence of AIBN as initiastor. In this paper, controling the low conversion(<10%).the reactivity ratios of several pairs of monomers were measured at 60℃ and calculated by the YBR and TM methods. From the results r1 andr2.it could be seen that the copolymerizations between styrene and these acrylates were random. Q<1 and r>show that the acrylate monomers were of resonance effects.but oess than that of stvrene. Their inductive effects were electron attractive.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1993年第1期38-41,共4页
Polymer Materials Science & Engineering
关键词
共聚
竞聚率
苯乙烯
丙烯酸氯代酯
copolymerization.reactivity ratio,styrene.chloroalkyl acrylate.
