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丙烯酸取代乙酯CH_2=CHCOOCH_2CH_2X(X=F,CI,Br,CN,OCH_3,H)用AIBN引发可以和苯乙烯发生自由基共聚合反应。在本文中,控制低的转化率,用YBR方法求初值。TM二元线性回归法系统测定了60℃时,各单体对的竞聚率。r_1<1和r_2<1表明共聚属于无规共聚;用Q-e方程求得丙烯酸取代乙酯的Q和e值。Q<1,e>0,该系列单体具有一定的共轭效应,和苯乙烯共聚时显示极性效应。这里还讨论了不同的取代基对丙烯酸取代乙酯共聚性能的影响。
Substitution of Ethyl Acrylate CH_2 = CHCOOCH_2CH_2X (X = F, CI, Br, CN, OCH_3, H) AIBN can be used to initiate free radical copolymerization with styrene. In this paper, the low conversion rate is controlled and the initial value is obtained using the YBR method. TM binary linear regression method was used to determine the reactivity ratio of each monomer pair at 60 ° C. r_1 <1 and r_2 <1 indicate that the copolymerization belongs to the random copolymerization; the Q and e values of the substituted ethyl acrylate are found using the Q-e equation. Q <1, e> 0, the series of monomers have a certain conjugation effect, and styrene copolymer polar effect. The effect of different substituents on the copolymerization of ethyl acrylate substituted is also discussed here.