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.
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页码：46 / 51
页数：6
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