Multi-responsive self-healing metallo-supramolecular gels based on “click” ligand

Jinchun Yuan; Xiuli Fang; Lingxing Zhang; Guangning Hong; Yangju Lin; Qifeng Zheng; Yuanze Xu; Yonghong Ruan; Wengui Weng; Haiping Xia; Guohua Chen

doi:10.1039/C2JM31347B

Multi-responsive self-healing metallo-supramolecular gels based on “click” ligand†

Jinchun Yuan,^b Xiuli Fang,^a Lingxing Zhang,^a Guangning Hong,^a Yangju Lin,^a Qifeng Zheng,^a Yuanze Xu,^a Yonghong Ruan,^a Wengui Weng,*^a Haiping Xia^a and Guohua Chen^b

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^a Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
E-mail: wgweng@xmu.edu.cn
Fax: +86-592-2186975
Tel: +86-592-2189790

^b Department of Polymer Science and Engineering, Huaqiao University, Xiamen, Fujian 361021, P. R. China

Abstract

Metallo-supramolecular gels were prepared using a ligand macromolecule containing the tridentate 2,6-bis(1,2,3-trizol-4-yl)pyridine (BTP) ligand unit synthesized via CuAAC “click” chemistry in the main chain, together with transition metal ions and/or lanthanide ions. The gelation and gel properties, e.g. swelling, emission, rheological properties, thermo- and chemo-responsive properties, can be tuned by the careful selection of metal ions and their combinations, solvents, concentration, etc. Most interestingly, the gels exhibited repeatable autonomic healing ability. Moreover, the repeatable self-healing ability of the gels found practical application in the repairing of metal coatings.

Journal of Materials Chemistry

Multi-responsive self-healing metallo-supramolecular gels based on “click” ligand†

Abstract

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Multi-responsive self-healing metallo-supramolecular gels based on “click” ligand

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