Coordination-driven fast self-assembly of a charge-transfer hydrogel with reversible photochromism
Jian-Zhen Liao1, Sa-Sa Wang, Xiao-Yuan Wu
1CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China. czlu@fjirsm.ac.cn xlchem@fjirsm.ac.cn.
Abstract:
Utilizing metal-ligand binding as the driving force, a unique photochromic hydrogel cross-linked by metal ions and π-acidic naphthalene bisimide dyes was obtained by simply mixing a two-phase solution. The mechanism of the coordination-driven self-assembly is elucidated by the morphological, XRD, FT-IR, ESR, UV-Vis and TGA studies and the controlled experiments.
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