文献类型：期刊文献

英文题名：Stimuli-responsive hydrogels prepared by simultaneous "click chemistry" and metal-ligand coordination

作者：Li, Yang[1];Zhou, Chao[1];Xu, Liqun[2];Yao, Fang[1];Cen, Lian[3,4];Fu, Guo Dong[1]

机构：[1]Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Jiangsu, Peoples R China;[2]Southwest Univ, Inst Clean Energy & Adv Mat, Chongqing 400715, Peoples R China;[3]E China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[4]Natl Tissue Engn Ctr China, Shanghai 200241, Peoples R China

年份：2015

卷号：5

期号：24

起止页码：18242

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20150900568341);WOS:【SCI-EXPANDED(收录号:WOS:000349999200009)】；

基金：This work was financially supported by National "973" Project Foundation (Grant no. 2010CB944804), National Natural Science Foundation of China (no. 21074022 and no. 21274020 and no. 21304019).

语种：英文

外文关键词：Synthesis (chemical) - Intelligent materials - Functional polymers - Gels - Crosslinking - Metals - Ligands - Metal ions

摘要：A novel strategy to synthesize stimuli-responsive metal-coordinated polymeric gels (MCPGs) via one-pot CuAAC and non-covalent metal coordination chemistry was demonstrated. 4'-(4-Prop-2-ynyloxyphenyl)-2,2 ':6 ',2 ''-terpyridine (Terpy-phi-CH2C equivalent to CH) and alpha,omega-diazido/hydroxyl PEG (PEG(45)(N-3)(2)) were used as precursors to yield linear terpyridine-terminated PEG derivatives with 1,2,3-triazole rings and terpyridine ligands in their main chains to serve as ligands for chelating a range of transition and/or lanthanide metal ions. It was found that the bridging metal complexes could not only act as branching or crosslinking sites within the three-dimensional polymer networks but could also bestow special properties to the final gels, such as stimuli-responsive and thixotropic features, thereby allowing facile and efficient design and synthesis of promising intelligent materials.