第 46 卷第 5 期 Vol. 46 No. 5 2016 年 10 月 Oct 2016

所属栏目：功能材料 聚苯乙烯系-L-谷氨酸树脂的合成及对水中苯胺的吸附性能

粟 琴，钟广明，付玉丽，黄小娟，钟世华* （湖南师范大学 化学化工学院 资源精细化与先进材料湖南省高校重点实验室 石化新材料与资源精细利用国家地方联合工程实验室，湖南 长沙 410081）

摘　要：氯甲基化聚苯乙烯与L-谷氨酸（L-Glu）反应合成了聚苯乙烯系-L-谷氯酸树酯，并测定了红外光谱、残余氯含量、比表面积；结果表明，聚苯乙烯-谷氨酸螯合树脂残余氯含量低，反应完全。并研究了该树脂在不同温度下对苯胺的吸附性能，利用热力学函数关系计算得到了吸附焓、自由能和熵。研究表明其对苯胺有较好的吸附性能。

关键词：氯甲基化聚苯乙烯；L-谷氨酸；胺解；吸附

中图分类号：TQ322.4　　文献标识码：A　　文章编号：1009-9212（2016）05-0041-04

Synthesis of A Polystyrene Based L-Glutamic Acid Resin and Its Adsorption Property for Aniline

SU Qin, ZHONG Guang-ming, FU Yu-li, HUANG Xiao-juan, ZHONG Shi-hua* (College of Chemistry and Chemical Engineering, Hunan Normal University, Key Laboratory of Fine Resources and Advanced Materials of Hunan Province, National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Changsha 410081, China)

Abstract：A novel polystyrene microsphere based L-glutamic acid was synthesized via the amination reaction of L-glutamic acid with chloromethylated polystyrene. The structure of the resin was evaluated through analysis of the FT-IR spectrum, remained chloride concentration and BET specific surface area. The experimental data indicated that the chemical reaction of the Glu resin was easier; the residual chlorine content was low. The adsorption isotherms of aniline in solution at different temperatures were studied. Isothermal adsorption enthalpy, Gibbs free energy and entropy were calculated according to thermodynamic equations. The results showed that this polymeric microsphere had strong adsorption to aniline in solution.

Key words：chloromethylated polystyrene; L-glutamic acid; amination; adsorption

基金项目： 湖南省发改委科研项目（湘财企指［2015］83号），湖南校企合作创新创业教育基地（湘教通〔2016〕394号）资助。

作者简介：粟 琴（1993-），女，湖南常德人，硕士研究生，主要从事有机化学研究（E-mail：771576515@qq.com）。

联 系 人： 钟世华，教授，博士，主要从事功能高分子的合成与天然产物分离（E-mail：zhongshihua@hunnu.edu.cn）。

收稿日期： 2016-08-1