Hydroquinone Based Sulfonated Copolytriazoles with Enhanced Proton Conductivity

Singh A, Bisoi S, Banerjee S, Komber H, Voit B (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Macromolecular Materials and Engineering Wiley-VCH Verlag

Book Volume: 302

Article Number: 1700208

Journal Issue: 11

DOI: 10.1002/mame.201700208

Abstract

A series of new fluorinated sulfonated copolytriazoles (PTHQSH-XX) with ion exchange capacity (IECw) values ranging from 1.66 to 2.82 meq g⁻¹ are prepared via cuprous ion catalyzed azide-alkyne click polymerization reaction between 1,4-bis(prop-2-ynyloxy)benzene, 4,4′-diazido-2,2′-stilbene disulfonic acid disodium salt (SA), and 4,4-bis[3′-trifluoromethyl-4′(4-azidobenzoxy) benzyl] biphenyl (QAZ). The degree of sulfonation of the copolytriazoles is adjusted between 60% and 90% by varying the molar ratio of sulfonated monomer (SA) to the nonsulfonated monomer (QAZ). The structure of the copolytriazoles is characterized by Fourier transform infrared and NMR spectroscopy. The solution-cast membranes of these copolymers exhibit high thermal, mechanical, oxidative and hydrolytic stability, and high proton conductivity (19–142 mS cm⁻¹ at 80 °C and 22–157 mS cm⁻¹ at 90 °C). Transmission electron microscopy confirms the formation of good phase separated morphology with ionic clusters in the range of 15–145 nm.

Involved external institutions

Indian Institute of Technology Kharagpur

India (IN) Leibniz-Institut für Polymerforschung Dresden e. V.

Germany (DE)

How to cite

APA:

Singh, A., Bisoi, S., Banerjee, S., Komber, H., & Voit, B. (2017). Hydroquinone Based Sulfonated Copolytriazoles with Enhanced Proton Conductivity. Macromolecular Materials and Engineering, 302(11). https://doi.org/10.1002/mame.201700208

MLA:

Singh, Asheesh, et al. "Hydroquinone Based Sulfonated Copolytriazoles with Enhanced Proton Conductivity." Macromolecular Materials and Engineering 302.11 (2017).

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