Citation: Yuan Yuan Li, Wen Jing Zhao, Hua Cheng Zhang, Tao Sun, Wei An, Fei Fei Xin, Ai You Hao. Triple-transforming gel prepared by β-cyclodextrin,diphenylamine and lithium chloride in N,N-dimethylacetamide[J]. Chinese Chemical Letters, ;2010, 21(10): 1251-1254. doi: 10.1016/j.cclet.2010.04.018 shu

Triple-transforming gel prepared by β-cyclodextrin,diphenylamine and lithium chloride in N,N-dimethylacetamide

School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China

Received Date: 11 February 2010

This paper describes a triple-transforming gel system(gel-sol-gel')for the first time, which is a thermo-responsive and multicomponent organogel prepared by β-cyclodextrin (β-CD), diphenylamine(DPA)and lithium chloride (LiCl) in N, N-dimethylacetamide (DMAC) in a suitable proportion based on the supramolecular interactions. In the triple-transforming gel system, a gel (gel A) could be formed by β-CD, DPA and LiCl in DMAC at room temperature based on stirring, then the gel could transform into a clear solution based on heating, and then the other gel (gel B) can be formed at a relatively high temperature(T_gel, the gelation temperature by heating). The two gel states in the triple-transforming gel system have different microstructures. This gel system was characterized by OM, SEM, IR and rheology.
- Gel,
- Triple-transforming,
- β-Cyclodextrin,
- Lithium,
- N,N-Dimethylacetamide
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