丙烯腈和甲基丙烯酸酯基团转移共聚的竞聚率

The Reactivity Ratios of Group Transfer Copolymerization of Acrylonitrile with Methacrylates

丙烯腈和甲基丙烯酸酯基团转移共聚的竞聚率邹友思，郭金全，兰涛，戴李宗，潘容华（厦门大学化工系，厦门，３６１００５）关键词基团转移共聚．竞聚率．丙烯腈．甲基丙烯酸酯近年来对基团转移共聚竞聚率的研究较活跃［１～３］，一般认为甲基丙烯酸酯和丙烯酸酯两类单体...

Random copolymerization have been performed for three binary systems using 1methoxy-2-methyl-1-trimethylsilyloxy propene(initiator)and tetrabutvlammonium bibenzoate(catalyst) in tetrahydrofutran solution. The copolymer compositions were determined by elementary analysis for nitrogen and the results evaluated by the Kelen-Tudos method.The monomer pairs concerned are (1)acrylonitrile(AN)and methyl methacrylate(MMA),(2)AN and ethyl methacrylate(EMA),(3)AN and butyl methacrylate (BMA). The reactivity ratios determined in this study are:(1)rAN=10.22, rMMA=0.07;(2)rAN=5068,rEMA=0.16;(30rAN=8.59,RBMA=0.09.