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Novel proton conductive hybrid membranes based on sulfonated polysulfone and benzotriazole

Published online by Cambridge University Press:  06 August 2012

Irfan Gustian ,
Sevim Ünügür Çelik  and
Ayhan Bozkurt
Irfan Gustian
Affiliation:
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Bengkulu, 38371 Jl. Raya Kandang Limun-Bengkulu, Indonesia
Sevim Ünügür Çelik*
Affiliation:
Department of Chemistry, Fatih University, 34500 Büyükçekmece-Istanbul, Turkey
Ayhan Bozkurt
Affiliation:
Department of Chemistry, Fatih University, 34500 Büyükçekmece-Istanbul, Turkey
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

As anhydrous proton conductive membranes, sulfonated polysulfone (SPSU) and 1H-1,2,3-benzotriazole (BTri) hybrid membranes were prepared. The sulfonation of polysulfone was performed with trimethylsilyl chlorosulfonate, and high degree of sulfonation (134%) was obtained. The polymer electrolyte membranes, SPSU–BTriX, were prepared by blending of 1H-1,2,3-benzotriazole in SPSU. FTIR confirmed the sulfonation of PSU and the ionic interaction between sulfonic acid and benzotriazole units. Thermogravimetric analysis (TGA) analysis showed that the polymer electrolyte membranes are thermally stable up to approximately 200 °C. Scanning electron microscopy analysis indicated the homogeneity of the membranes. The maximum proton conductivity has been measured for SPSU–BTri2 as 3.6 × 10−3S/cm at 150 °C.

Keywords

sulfonated polysulfone1H-benzotriazolepolymer electrolyte membraneproton conductivity
Type
Articles
Information
Journal of Materials Research , Volume 27 , Issue 20 , 28 October 2012 , pp. 2650 - 2656
Copyright
Copyright © Materials Research Society 2012

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