水相沉淀法制备丙烯腈-丙烯酰胺共聚物及其结构研究  

Synthesization and structure research of acrylonitrile/acrylamide by aqueous deposited polymerization

作　　者：于宽[1] 朱波[1] 王永伟[1] 曹伟伟[2] 吴益民 张式雷 

机构地区：[1]山东大学材料科学与工程学院,碳纤维工程技术研究中心,材料液固结构演变与加工教育部重点实验室,山东济南250061 [2]天津工业大学材料科学与工程学院,天津300160 [3]浙江国泰密封材料股份有限公司,浙江杭州311255 [4]青岛变压器集团有限公司,山东青岛266109

出　　处：《功能材料》2012年第18期2573-2576,共4页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2009AA035301)

摘　　要：以丙烯酰胺(AM)为共聚单体,采用水相沉淀法制备了丙烯腈/丙烯酰胺共聚物。研究了AM对聚合反应以及共聚物结构的影响。结果表明,AM竞聚率高于AN,倾向于均聚反应,会降低PAN的分子量,提高聚合反应的转化率;少量AM会略微改变分子链中的立构规整度,提高PAN的结晶度,降低晶粒尺寸。Acrylonitrile/acrylamide copolymer was synthesized by the continuous aqueous deposited polymerization using acrylamide as comonomers.The effects of the acrylamide on the polymerization and copolymer structures were investigated.The results showed that the reactivity of acrylamide was higher than that of acrylonitrile,tended to be homopolymerization reaction,which could decrease its molecule weight and increase the conversion rate of polymerization.The chain tacticity changed slightly by a small amount of acrylamide,and the crystallinity of PAN improved while the size of crystallite decreased.

关 键 词：聚丙烯腈 水相沉淀法 丙烯酰胺 共聚物 

分 类 号：TQ325.8[化学工程—合成树脂塑料工业] O631.5[理学—高分子化学]