含二茂铁季铵盐有序分子膜的组装与性能研究  

Preparation and property of ordered molecular systems containing N,N,N-trimethylferrocenylmethylammonium

作　　者：谢安建[1] 唐宇峰[1] 黄方志[1] 沈玉华[1] 裘灵光[1] 席昆[1] 

机构地区：[1]安徽大学化学化工学院,安徽合肥230039

出　　处：《安徽大学学报（自然科学版）》2005年第5期61-65,共5页Journal of Anhui University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(20371001;20471001)

摘　　要：在考察了二茂铁季铵盐的表面活性的基础上,制备了含二茂铁季铵盐/氯仿/苯/二次蒸馏水的反相微乳液及二茂铁季铵盐/十八酸混合单分子膜,并通过电导率仪和动态激光光散射仪等对所制备的微乳液进行了表征.结果表明,苯和氯仿的体积比为7:3的混合溶液为该微乳液形成的最佳有机溶剂;微乳液形成过程中,二茂铁季铵盐的浓度为0.10～1.00mmol/L,10mL微乳液中增溶水量为6～8μL时为佳.若加助表面活性剂正戊醇,则其最佳体积含量为20%.二茂铁季铵盐很难单独在气/液界面铺展成膜,而其与十八酸的混合体系可形成稳定的单分子膜,且二茂铁季铵盐/十八酸混合体系的成膜性能随十八酸含量的增加而增强.According to the amphipathic properties of N, N, N - trimethylferrocenyl - methylammonium, they were dissolved in benzene/chloroform/water mixture to prepare reversed microemulsions which were characterized by conductometry and dynamic laser scattering. The result showed that the mixture of benzene and chloroform in volume ratio of 7 ： 3 was an optimal solvent, applying N, N, N - trimethylferrocenyl - methylammonium as surfactant with the concentration ranged from 0.1 mmol/L and 1.0mmol/L, for the formation of microemulsions. The volume of water in 10mL microemulsions ranged from 6μl to 8μl. When n - pentanol was used as cosurfactant, the ideal concentration was 20%. Additionally, the mixed N, N, N - trimethylferrocenylmethylammonium/stearic acid monolayers spread at the air/water interface were used to as model systems to examine the stearic acid effect on N, N, N - trimethylferrocenylmethylammonium, and the capacity of the N, N, N - trimethylferrocenylmethylammonium/stearic acid mixture forming monolayer increased with the increasing of the proportion of stearic acid.

关 键 词：二茂铁季铵盐 微乳液 混合单分子膜 表面张力 

分 类 号：O648.16[理学—物理化学]