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Polymer-Plastics Technology and Engineering Volume 51, 2012 - Issue 6
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Original Articles

Polysulfone/C30B Nanocomposite Membranes for Fuel Cell Applications: Effect of Various Sulfonating Agents

Lakshmi Unnikrishnan Laboratory for Advanced Research in Polymeric Materials (LARPM), Central Institute of Plastics Engineering & Technology (CIPET), Bhubaneswar, Orissa, India
,
Prasad Madamana Laboratory for Advanced Research in Polymeric Materials (LARPM), Central Institute of Plastics Engineering & Technology (CIPET), Bhubaneswar, Orissa, India
,
Smita Mohanty Laboratory for Advanced Research in Polymeric Materials (LARPM), Central Institute of Plastics Engineering & Technology (CIPET), Bhubaneswar, Orissa, India
&
Sanjay K. Nayak Laboratory for Advanced Research in Polymeric Materials (LARPM), Central Institute of Plastics Engineering & Technology (CIPET), Bhubaneswar, Orissa, IndiaCorrespondence[email protected]
Pages 568-577 | Published online: 27 Apr 2012
 
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Abstract

The effect of various sulfonating agents (Chlorosulfonic acid and Trimethylsilylchlorosulfonate (TMSCS) on the performance of Polysulfone (PSU) nanocomposite membranes was investigated. FTIR and 1H NMR results confirmed the sulfonation reaction. Sulfonation of PSU as well as incorporation of Cloisite 30B (C30B) as a filler, resulted in an increase of proton conductivity, water uptake and glass transition temperature (Tg). Thermogravimetric analysis (TGA) exhibited a decrease in decomposition temperature with sulfonation.XRD confirmed positive interaction between C30B and SPSU. Surface and cross-sectional morphology of the membranes were studied using SEM.

Notes

*Reaction temperature: 60°C; Sulfonating agent: Chlorosulfonic acid (1.1 ml).

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