Metal‐ and solvent‐free,clickable synthesis and postpolymerization functionalization of poly(triazole)s |
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| Authors: | Fengyang Deng Bin Xu Yong Gao Zheng Liu Duanguang Yang Huaming Li |
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| Affiliation: | 1. College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, People's Republic of China;2. Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, and Key Lab of Environment‐Friendly Chemistry and Application in Ministry of Education, Xiangtan 411105, Hunan Province, People's Republic of China |
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| Abstract: | In this study, a series of linear poly(triazole)s (PTAs) were successfully synthesized by the metal‐ and solvent‐free, thermal click polymerization of diazide and dialkyne (A2 + B2) monomers. All click polymerizations proceeded smoothly at 80 °C in an open atmosphere without protection from oxygen and moisture. After being polymerized for 36 h, the crude polymer was further fractionated into three fractions using a multistep precipitation method. By selectively choosing precipitating agents, this process produced poly(triazole) fractions with low polydispersity index (<1.30). The resulting PTAs are soluble in common organic solvents and stable at a temperature up to 320 °C. Furthermore, the methyl benzoate moieties in the main chain can serve as useful building blocks for further postpolymerization functionalization, yielding 1,2,4‐triazole derivatives. This functionalization strategy offers potential for the development of novel triazole‐based materials. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012 |
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| Keywords: | fractionation of polymers functionalization of polymers poly(triazole)s step‐growth polymerization thermal click polymerization |
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