中文关键词:聚苯乙烯伯胺微球丙烯酰氧乙基三甲基氯化铵L-谷氨酸表面吸附 英文关键词:Polystyrene primary amine microspheresAcryloyloxyethyltrimethylammonium chlorideL-glutamic acidSurfaceAdsorption 基金项目:国家自然科学基金项目（21404093）资助

作者	单位	E-mail
胡译之	中北大学化学系 太原 030051
李延斌	中北大学化学系 太原 030051	lyb2010@nuc.edu.cn
余佳照	中北大学化学系 太原 030051
何红芳	中北大学化学系 太原 030051

摘要点击次数:756 全文下载次数:0 中文摘要: 采用自由基聚合法在溶液聚合体系中将功能单体丙烯酰氧乙基三甲基氯化铵（DAC）接枝于聚苯乙烯伯胺微球（PSA）表面，制备了接枝微粒PDAC/PSA，考察了主要因素对接枝聚合的影响，并初步探究了其对L-谷氨酸的吸附特性。结果表明，在反应温度25℃、单体质量分数为6%、引发剂占单体质量的1.2%的条件下，可制得接枝度为431mg/g的接枝微粒，其对L-谷氨酸的吸附量达140mg/g。 英文摘要: In the solution polymerization system, the grafted microparticles PDAC/PSA were prepared by grafting functional monomer acryloyloxyethyltrimethylammonium chloride (DAC) onto the surface of polystyrene primary amine microspheres (PSA) through a free radical polymerization method. The main influence factors on graft polymerization were investigated, and its adsorption characteristics for L-glutamic acid were preliminarily explored. The results showed that at the temperature of 25℃, the mass fraction of the monomer is 6% of the total solution, and the initiator is 1.2% of the mass of the monomer, the grafted particles with a grafting degree of 431mg·g^-1 can be obtained. Its adsorption capacity for L-glutamic acid reaches 140mg·g^-1. 查看全文查看/发表评论下载PDF阅读器 相关附件：版权转让声明书 -->