Effect of cosolvents on the self-assembly of a non-ionic polyethylene oxide-polypropylene oxide-polyethylene oxide block copolymer in the protic ionic liquid ethylammonium nitrate

被引：8

作者：

Chen, Zhengfei ^{[1
,2
]}

Greaves, Tamar L. ^{[2
,3
]}

Caruso, Rachel A. ^{[1
,2
]}

Drummond, Calum J. ^{[2
,3
]}

机构：

[1] Univ Melbourne, Sch Chem, PFPC, Melbourne, Vic 3010, Australia

[2] CSIRO Mat Sci & Engn, Clayton, Vic 3169, Australia

[3] RMIT Univ, Coll Sci Engn & Hlth, Sch Appl Sci, Melbourne, Vic 3001, Australia

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2015年 / 441卷

基金：

澳大利亚研究理事会;

关键词：

Protic ionic liquid; Self-assembly; Cosolvent effects; Lyotropic liquid crystals; PHASE-BEHAVIOR; CRYSTALLINE PHASES; TRIBLOCK COPOLYMER; BINARY-SYSTEMS; PLURONIC P123; NANOSTRUCTURE; SILICA; MICROSTRUCTURE; MICROEMULSIONS; AMPHIPHILES;

D O I：

10.1016/j.jcis.2014.11.005

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of water and methanol on the self-assembled structures formed by the polyethylene oxide-polypropylene oxide-polyethylene oxide block copolymer Pluronic P123 in ethylammonium nitrate was investigated by small angle X-ray scattering (SAXS). Two ternary phase diagrams were established. The addition of water had only a minor effect on the liquid crystal structures, however methanol had a significant effect, which was attributed to methanol being a good solvent for both the PEO and PPO blocks of the polymer. No lyotropic liquid crystal phases were retained when methanol reached 25 wt%. The phase behaviour did not change significantly over the temperature range from 25 to 45 degrees C. (C) 2014 Elsevier Inc. All rights reserved.

引用

页码：46 / 51

页数：6

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