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General Information
    • ISSN: 1793-8198
    • Frequency: Quarterly
    • DOI: 10.18178/IJMMM
    • Editor-in-Chief: Prof. K. M. Gupta, Prof. Ian McAndrew
    • Executive Editor: Ms. Cherry L. Chen
    • Abstracting/Indexing: EI (INSPEC, IET), Chemical Abstracts Services (CAS),  ProQuest, Crossref, Ulrich's Periodicals Directory,  etc.
    • E-mail ijmmm@ejournal.net
Editor-in-chief
Prof. Ian McAndrew
Capitol Technology University, USA
It is my honor to be the editor-in-chief of IJMMM. I will do my best to help develop this journal better.

IJMMM 2014 Vol.2(1): 36-40 ISSN: 1793-8198
DOI: 10.7763/IJMMM.2014.V2.95

Sulfonated Polystyrene Copolymer: Synthesis, Characterization and Its Application of Membrane for Direct Methanol Fuel Cell (DMFC)

S. Mulijani, K. Dahlan, and A. Wulanawati
Abstract—A novel Sulfonated Polystyrene (PSS) has been synthesized by sulfonation polystyrene waste for a comparative study of proton exchange membranes (PEM) that is intended for fuel cell applications. The degree of sulfonation (DS) of the sulfonated PS was determined using titration method. We systematically investigated the water uptake, proton conductivity, and methanol permeability of the cross-linked membranes. The mass averaged molecular weights Mw of PSS was estimated from intrinsic viscosities measured in sulfuric acid solutions. A related homopolymer was characterized by Fourier transform infrared (FT-IR) and nuclear magnetic resonance (NMR) spectroscopy. The structures of PSS were elucidated, and the effect of sulfonation level on the PSS FT-IR spectrum was studied. PSS membrane surface morphology was investigated by SEM and AFM. The highest of proton conductivity of the membrane in the temperature range of 25–750C was found to be 3.8 μS/cm.

Index Terms—AFM, FT-IR, fuel cell, polystyrene sulfonated, SEM.

S. Mulijani is with Department of Chemistry Bogor Agriculture university, Darmaga Campus, Bogor, Indonesia (e-mail: smulijani@ipb.ac.id, janism67@gmail.com). K. Dahlan is with Department of Physics, Bogor Agriculture University, Darmaga Campus, Bogor, Indonesia (e-mail: kiagusdahlan@)ipb.ac.id). A. Wulanawati is with Department of Chemistry Bogor Agriculture university, Darmaga Campus, Bogor, Indonesia (e-mail: armiwu@ipb.ac.id).

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Cite:S. Mulijani, K. Dahlan, and A. Wulanawati, "Sulfonated Polystyrene Copolymer: Synthesis, Characterization and Its Application of Membrane for Direct Methanol Fuel Cell (DMFC)," International Journal of Materials, Mechanics and Manufacturing vol. 2, no. 1, pp. 36-40, 2014.

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