纤维素-三(苯基氨基甲酸酯)复合膜的制备及对(±)-1-萘乙醇的初步拆分  

Study on Preparation of Cellulose Trisphenylcarbamate Composite Membranes and Primary Application to Separate(±)-1-(1-Naphthyl) Ethanol

作　　者：李国祥[1] 艾萍[2] 袁黎明[2] 

机构地区：[1]湖北民族学院化学与环境工程学院,湖北恩施445000 [2]云南师范大学化学化工学院,云南昆明650092

出　　处：《湖北民族学院学报（自然科学版）》2009年第2期144-146,共3页Journal of Hubei Minzu University(Natural Science Edition)

基　　金：国家自然科学基金项目(20775066);云南省自然科学基金项目(2005E0006Z)

摘　　要：以微晶纤维素和苯基异氰酸酯为原料,合成了纤维素-三(苯基氨基甲酸酯)(CTPC)手性高分子,并以CTPC为膜材料用无纺布做支撑,制备了CTPC复合膜.讨论了浓度、操作压力对膜的性能的影响,并测试了复合膜的机械性能.将CTPC复合膜初步应用于对映体(±)-1-萘乙醇的分离.结果表明:当使用质量浓度为12%的复合膜,操作压力为0.25MPa时,该膜对(±)-1-萘乙醇具有明显的选择性,此时复合膜的抗张强度和断裂伸长率分别为bδ=45MPa,εb=54%.Cellulose trisphenylcarbamate（CTPC） was synthesized by microcrystalline cellulose and phenyl isocyanate. Composite membranes supported on the nonwovens of cellulose trisphenylcarbamate were prepared. Effects of different pressure and concentration on membranes performance were investigated, and the mechanical properties of composite membranes were assessed. Composite membranes were applied to primarily separate （±） - 1 - （ 1 - Naphthyl） ethanol. The results some chiral recognition ability when concentration is 12% ,and the show that composite membranes have pressure is 0.25 MPa. Tensile strength and elongation at break of the composite membranes were 45 MPa and 54%, respectively.

关 键 词：纤维素-三(苯基氨基甲酸酯) (±)-1-萘乙醇 手性膜 手性分离 

分 类 号：O657.7[理学—分析化学]