邻甲氧基苯胺修饰超高交联吸附树脂的合成及其性能  

Preparation and performance of a novel hypercrosslinked polymeric adsorbent modified by methoy and amine groups

作　　者：翁明强 王敏玲 刘敦舜 龙雨欣 吴继业 袁新华[1] WENG Mingqiang;WANG Minling;LIU Dunshun;LONG Yuxin;WU Jiye;YUAN Xinhua(School of Materials Science and Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China)

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013

出　　处：《江苏大学学报（自然科学版）》2019年第2期216-220,共5页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(20704019;51603093);教育部留学回国人员科研启动基金资助项目(2011508)

摘　　要：用甲氧基和氨基共同修饰制备了超高交联吸附树脂(HPAMMA),研究了其对水体系中苯胺和苯的静态吸附行为,考察了双官能团修饰对超高交联吸附树脂吸附能力的影响.结果表明:HPAMMA对苯胺的吸附量明显大于对苯的吸附量,树脂对苯胺的吸附是物理吸附和氢键吸附共同作用的,而对苯的吸附以物理吸附为主.在相同条件下,双官能团修饰的树脂氢键吸附辅助作用明显大于单官能团修饰的树脂.Langmuir方程能较好地描述苯胺的吸附过程,而苯和苯胺在HPAMMA上的吸附等温线均符合Freundlich方程.所有等温吸附方程的相关因子均大于0.98,拟合方程中的指数因子n>1,对苯和苯胺的吸附均属于优惠吸附.HPAMMA对苯胺的吸附选择性系数随吸附质初始质量浓度的增加呈先减小后趋于定值的趋势,而随温度增加呈逐渐减小的趋势.A novel hypercrosslinked polymeric adsorbent modified by methoy and amine (HPAMMA) was successfully prepared. The static adsorption behaviors of aniline and benzene onto HPAMMA in aqueous solution were investigated,and the effects of bi-functional groups on adsorption behavior were discussed. The results show that the adsorption capacity of aniline is significantly bigger than that of benzene under the same conditions. The adsorption of aniline is pushed by physical and chemical interactions,while the adsorption of benzene is mainly pushed by physical interaction. Comparing the adsorption capacity,the resin modified by bi-functional groups is bigger than that modified by one functional group with the assistance of hydrogen bonding. Langmuir models can well illuminate the adsorption of aniline,while the adsorption isotherms of aniline and benzene onto HPAMMA are both conformed to Freundlich models. The correlation coefficients are all over 0.98,and the indexes of n in Freundlich regression equations are all over 1,which means that the adsorptions of aniline and benzene are favorable adsorption. With the increasing of initial adsorbate concentration,the adsorption selectivity is decreased with latter constant value,and it is deceased with the increasing of temperature.

关 键 词：超高交联吸附树脂 甲氧基 氨基 双官能团 氢键 

分 类 号：O647.33[理学—物理化学]