废旧聚苯乙烯的化学改性进展  

Development of the Chemical Modification of Waste Polystyrene

作　　者：郑刚[1] 王汝敏[1] 杜宝中[1,2] 余晓皎[2] 

机构地区：[1]西北工业大学应用化学系,陕西西安710072 [2]西安理工大学应用化学系,陕西西安710054

出　　处：《中国塑料》2009年第12期6-9,共4页China Plastics

摘　　要：详细综述了废旧聚苯乙烯(WPS)资源化综合回收利用中化学改性的最新进展和应用前景,包括在WPS分子链侧基苯环上进行亲电取代引入功能性官能团(如卤化、磺化、硝化、氯甲基化、酰基化等)和在WPS分子链苄基位上与乙烯类活性单体(如丙烯酸及其酯类、顺酐、醋酸乙烯酯、丙烯腈、丙烯醇等)进行自由基共聚合引入功能性官能团。改性后的WPS可制成胶黏剂、表面活性剂、絮凝剂、减小剂、涂料、阻燃剂等产品。The chemical modification of waste polystyrene （WPS） was summarized in this paper. The modifications could be categorized into two types： （i）the introduction of functional groups to the lateral benzene group of WPS via electrophilic substitution, i. e., sulfonation, halogenation, nitration, chloromethylation,and acylation; （ii） radical copolymerization between the benzyl of WPS and vinyl monomers including acroleic acid, acrylate, maleic, acetate, acrylonitrile, and propenol. The modified WPS could be used as adhesive, surface active agent, floeculant, water reducer, coating, flame retardant, et al.

关 键 词：聚苯乙烯 废塑料 化学改性 回收 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]