文献类型：期刊文献

英文题名：Fluorous protic ionic liquid exhibits a series of lyotropic liquid crystalline mesophases upon water addition

作者：Greaves, Tamar L.[1,3];Kennedy, Danielle F.[1];Shen, Yan[1,2];Weerawardena, Asoka[1,3];Hawley, Adrian[4];Song, Gonghua[2];Drummond, Calum J.[1,3]

机构：[1]Commonwealth Sci & Ind Res Org CSIRO, Mfg Flagship, Clayton Mdc, Vic 3169, Australia;[2]E China Univ Sci & Technol, Shanghai Key Lab Chem Biol, Sch Pharm, Shanghai 200237, Peoples R China;[3]RMIT Univ, Sch Appl Sci, Coll Sci Engn & Hlth, Melbourne, Vic 3001, Australia;[4]Australian Synchrotron, Clayton, Vic 3168, Australia

年份：2015

卷号：210

起止页码：279

外文期刊名：JOURNAL OF MOLECULAR LIQUIDS

收录：;EI(收录号：20151500738915);WOS:【SCI-EXPANDED(收录号:WOS:000363346800016)】；

基金：Yan Shen acknowledges the China Scholarship Council and the CSIRO for support.

语种：英文

外文关键词：Protic Ionic Liquid; Ionic liquid; Self-assembly; Lyotropic liquid crystals; L-3 sponge mesophase; L-alpha lamellar mesophase; Perfluorinated solvents

摘要：Fluorous protic ionic liquids (FPILs) which consist of a hydrocarbon cation and fluorocarbon anion can possess a complex liquid nanostructure, consisting of segregated polar, hydrocarbon and fluorocarbon domains. FPILs are an interesting series of compounds of relevence to the fields of ionic liquids (Ils), fluorinated amphiphiles and mixed hydrocarbon/fluorocarbon amphiphile systems. Here we show the self-assembly of FPIL ethylammonium perfluorooctanoate (EOAF)-water solutions, which transitions from a low water content L-3 sponge structure in EOAF, to a L-alpha lamellar mesophase and then to dispersed lamellar vesicles. The robust lamellar mesophase was present between 10 and 85 wt.% EAOF, and retained up to 91 degrees C. This phase underwent significant swelling on addition of water. In contrast, the addition of water to the hydrocarbon analogue, ethylammonium octanoate (EAO) swelled the sponge-like liquid nanostructure, with no other lyotropic liquid crystal mesophases observed. Crown Copyright (C) 2015 Published by Elsevier B.V. All rights reserved.