金属-有机骨架材料[Zn_2Camph_2(dabco)]·DMF·H_2O作为手性选择剂的高分子膜及其应用研究  

Application study on metal-organic frameworks[Zn_2Camph_2(dabco)]·DMF·H_2O used as chiral additives in polymer-membranes

作　　者：艾萍[1] 张紫恒[1] 袁黎明[1] AI Ping;ZHANG Ziheng;YUAN Liming(School of Chemistry and Chemical Engineering,Yunnan Normal University,Kunming 650500,China)

机构地区：[1]云南师范大学化学化工学院,昆明650500

出　　处：《膜科学与技术》2018年第5期84-87,112,共5页Membrane Science and Technology

基　　金：国家自然科学基金项目(21365025)

摘　　要：以醋酸纤维素为基膜,以手性金属-有机骨架材料[Zn2Camph2(dabco)]·DMF·H2O为手性识别剂制备醋酸纤维素混合膜,对D,L-对羟基苯甘氨酸溶液进行了分离研究,考察了操作压力、操作时间以及D,L-对羟基苯甘氨酸浓度对膜渗析性能的影响。在优选分离条件下,当D,L-对羟基苯甘氨酸浓度为0.3mg/mL时,该膜对D,L-对羟基苯甘氨酸分离的对映体过剩值(e.e.)为42.4%,表明对D,L-对羟基苯甘氨酸对映体有一定的拆分效果.A enantioselective membrane was prepared by mixed[Zn 2Camph 2(dabco)]·DMF·H 2O and cellulose acetate.The enantioseparation parameters of the mixed membrane for D,L-p-hydroxyphenylglycine was optimized by operating pressure,dialysis time,feed concentration of D,L-p-hydroxyphenylglycine,etc.When the feed concentrateion of D,L-p-hydroxyphenylglycine was 0.3 mg/mL,over 42.4%of enantiomeric excess(e.e.)could be obtained by dialysis.The results showed that the MOFs-cellulose acetate mixed membrane can separate the optical isomers of D,L-p-hydroxyphenylglycine.

关 键 词：D L-对羟基苯甘氨酸 金属-有机骨架材料[Zn2Camph2(dabco)]·DMF·H2O MOFs-醋酸纤维素混合膜 手性分离 

分 类 号：TQ028.8[化学工程] O658.9[理学—分析化学]