机构地区: 广西师范学院化学与生命科学学院化学系
出 处: 《弹性体》 2004年第6期19-21,共3页
摘 要: 以偶氮二异丁腈 (AIBN)作引发剂 ,用甲苯作溶剂 ,合成了一系列苯乙烯 马来酸酐共聚物 ,通过化学滴定方法分析了产物的组成 ,并讨论了组成对热性能的影响。结果表明 :随着投料苯乙烯和马来酸酐的摩尔比增大 ,共聚产物中马来酸酐的含量也增大 ,当原料n(St) /n(MA) =2 /1时 ,产物中马来酸酐含量最高 ,产物结构交替倾向最大 ;随着原料n(St) /n(MA)的增大 ,产物玻璃化温度 (Tg)呈增大趋势 ,并随着反应温度的升高 。 In the paper,a series of styrene-maleic anhydride copolymer were synthesized in toluene.The effects of the initiator amount,reaction temperature and the mole ratio of styrene to maleic anhydride on the copolymer structures were investigated with chemical titration and DTA.The results show that the content of maleic anhydride in the resulting copolymers increases with the increase of the mole ratio of styrene to maleic anhydride monomer and the copolymers tend to be alternated structure when the mole ratio is 2∶1.