Temperature-Induced Reversible Transition between Vesicle and Supramolecular Hydrogel in the Aqueous Ionic Liquid-β-Cyclodextrin System

被引：53

作者：

Zhang, Jingjing ^{[1
]}

Shen, Xinghai ^{[1
]}

机构：

[1] Peking Univ, Beijing Natl Lab Mol Sci BNLMS, Radiochem & Radiat Chem Key Lab Fundamental Sci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2013年 / 117卷 / 05期

基金：

中国国家自然科学基金;

关键词：

SOL-GEL TRANSITION; INCLUSION COMPLEXES; ALPHA-CYCLODEXTRIN; POLY(ACRYLIC ACID); PHASE-BEHAVIOR; MICELLE; AGGREGATION; BROMIDE; ENCAPSULATION; AMPHIPHILES;

D O I：

10.1021/jp308877w

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 vesicle is found to form in the concentrated aqueous solution of ionic liquid 1-dodecyl-3-methylimidazolium bromide (C(12)mimBr) and beta-CD. By decreasing the temperature, the vesicle changes into a novel supramolecular hydrogel constructed from lamellae. The process is reversible and reproducible. The mechanism for the formation of vesicles and suprarnolecular hydrogel is studied by various methods. It is suggested that the main driving force is hydrogen bonding between beta-CDs, beta-CD and the solvent, the irnidazolium headgroup of C(12)mim(+), and the solvent. Accordingly, the basic structural features of the vesicle and supramolecular hydrogel based on ionic liquid and beta-CD are illustrated. The structural evolution from vesicles to hydrogels is also discussed herein.

引用

页码：1451 / 1457

页数：7

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