Citation: Shunji Kono, Yu Jiang Wang, Li Ming Tang. Influence of gelator structures on formation and stability of supramolecular hydrogels[J]. Chinese Chemical Letters, ;2007, 18(12): 1548-1550. doi: 10.1016/j.cclet.2007.10.025 shu

Influence of gelator structures on formation and stability of supramolecular hydrogels

a Laboratory of Advanced Materials, Department of Chemical Engineering, Tsinghua University, Beijing 100084, PR China;
b Department of Organic & Polymeric Materials, Graduate School of Science & Engineering, Tokyo Institute of Technology, 2-12-1-H120, O-okayama, Meguro-ku, Tokyo 152-8552, Japan

Received Date: 23 July 2007

Fund Project: The financial support from the National Natural Science Foundation of China (No.20574041) is gratefully acknowledged.

A supramolecular hydrogel (defined as G1) formed from 1, 2, 4, 5-benzene tetracarboxylic acid (BTCA) and 2-amino-3-hydroxypyridine possessed higher T_gel than that of another hydrogel (defined as G2) formed from BTCA and 3-hydroxypyridine. Based on the analysis of their xerogels by ¹H NMR, IR and XRD, the higher stability of G1 was attributed to the formation of stronger hydrogen binding enhanced by the ortho amino group of 2-amino-3-hydroxypyridine.
- Supramolecular hydrogel,
- Gelation,
- Hydrogen bond
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