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Polymer, Vol.79, 309-315, 2015
Expanding the structural variety of poly(1,2,3-triazolium)s obtained by simultaneous 1,3-dipolar Huisgen polyaddition and N-alkylation
A series of six 1,2,3-triazolium-based poly(ionic liquid)s (TPILs) having random distributions of 1,3,4- and 1,3,5-trisubstituted 3-methyl-1,2,3-triazolium units are prepared by the solvent-and catalyst-free 1,3-dipolar Huisgen cycloaddition of two alpha-azide-omega-alkyne monomers and simultaneous N-alkylation of the resulting 1,4- and 1,5-disubstituted poly(1,2,3-triazole)s by N-methyl bis(trifluoromethylsulfonyl)imide (TFSI), trimethyl phosphate or methyl methanesulfonate quaternizing agents. The physical and ion conducting properties of this series of TPILs having TFSI, dimethyl phosphate (DMP) or methanesulfonate (MSF) anions are discussed based on solubility, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), size exclusion chromatography (SEC) and broadband dielectric spectroscopy (BDS) measurements. (C) 2015 Elsevier Ltd. All rights reserved.
Keywords:Poly(ionic liquid)s;Step growth polymerization;1,2,3 triazoliums;Solid electrolytes;Ionic conductivity;Structure-properties relationship