Citation: Xiao-Juan Liao, Guo-Song Chen. A hybrid hydrogel based on clay nanoplatelets and host-guest inclusion complexes[J]. Chinese Chemical Letters, ;2016, 27(4): 583-587. shu

A hybrid hydrogel based on clay nanoplatelets and host-guest inclusion complexes

Xiao-Juan Liao ^a,b, ,
Guo-Song Chen ^b

a School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China;
b State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China

Received Date: 28 December 2015
Revised Date: 1 February 2016

Fund Project: National Natural Science Foundation of China (No. 21204022), Research Fund for the Doctoral Program of Higher Education of China (No. 20120076120005), the Fundamental Research Funds for the Central Universities, and the Large Instruments Open Foundation of East China Normal University (No. 201409251425) are acknowledged for their financial supports.

In this work, a monomer with double bond was introduced to the surface of clay nanosheets via inclusion complexation between cyclodextrin (CD) host and azobenzene (Azo) guest, as well as electrostatic interaction between clay nanoplatelets and cations of azobenzene derivatives. The obtained supra-structure acts as a supramolecular cross-linker in its copolymerization with macromonomer PEG resulting in a hybrid supramolecular hydrogel. Only viscous liquid was obtained in the absence of clay nanoplatelets, revealing the supramolecular cross-linker played an important role in the hydrogel formation. Such hybrid supramolecular hydrogel exhibited good stability and shear thinning property.
- Host-guest chemistry,
- Clay,
- Supramolecular hydrogel,
- Cyclodextrin,
- Electrostatic interaction
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