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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2219
Title: Effect of the presence of partially sulfonated polyaniline on the proton and methanol transport behavior of partially sulfonated PVdF membrane
Authors: Dutta K.
Das S.
Kundu, Patit Paban
Published in: Polymer Journal
Abstract: Poly(vinylidene fluoride) (PVdF) and polyaniline (PAni) were partially sulfonated using chlorosulfonic acid (CSA) as the sulfonating agent. Partially sulfonated PVdF (SPVdF) having a degree of sulfonation (DS) of ?22% and partially sulfonated PAni (SPAni) having a DS of ?29% were blended at constituent wt% ratios of SPVdF:SPAni=95:5, 90:10, 85:15 and 80:20 to fabricate different blend membranes. These blend membranes exhibited extremely low methanol uptake and methanol permeability, as well as high membrane selectivity ratios (especially at high methanol concentrations). The blend membranes also exhibited superior water uptake capacity, water swellability, ion-exchange capacity (IEC) and proton conductivity compared with pristine PVdF and SPVdF membranes. The SPVdF:SPAni (80:20) blend membrane was found to produce the lowest methanol permeability values of 1.50 × 10-9 cm 2 s-1 (at 2 m methanol) and 6.30 × 10-9 cm 2 s-1 (at 8 m methanol) and the highest membrane selectivity values of 3.27 × 10 6 Ss cm-3 (at 2 m methanol) and 7.78 × 10 5 Ss cm-3 (at 8 m methanol). However, the introduction of Nafion to the SPVdF/SPAni blend membrane to form a ternary blend membrane (that is, SPVdF:Nafion:SPAni=50:30:20) resulted in much improved IEC and proton conductivity. © 2016 The Society of Polymer Science, Japan (SPSJ) All rights reserved.
Citation: Polymer Journal (2016), 48(3): 301-309
URI: https://doi.org/10.1038/pj.2015.106
http://repository.iitr.ac.in/handle/123456789/2219
Issue Date: 2016
Publisher: Nature Publishing Group
ISSN: 323896
Author Scopus IDs: 7005115695
55820818900
35475516300
Author Affiliations: Dutta, K., Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92, A. P. C. Road, Kolkata, 700009, India
Das, S., Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92, A. P. C. Road, Kolkata, 700009, India
Kundu, P.P., Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92, A. P. C. Road, Kolkata, 700009, India
Funding Details: KD thanks the Council of Scientific and Industrial Research (CSIR), India for a Senior Research Fellowship (Award no. 09/028 (0901)/2012-EMR-I). PPK thanks the Ministry of New and Renewable Energy (MNRE), Government of India for a Grant-in-Aid (Grant no. 102/56/2009-NT). We thank Mr Sujoy Debnath (University of Calcutta) for carrying out the tensile testing of the membranes.
Corresponding Author: Kundu, P.P.; Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92, A. P. C. Road, India; email: ppk9233@yahoo.com
Appears in Collections:Journal Publications [CH]

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