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Synthesis and properties of sulfonated poly(phthalazinone ether nitrile ketone)/boron phosphate composite membranes for PEMFC

Authors :
Liang, Y.F.
Zhu, X.L.
Jian, X.G.
Source :
Solid State Ionics. Oct2008, Vol. 179 Issue 33/34, p1940-1945. 6p.
Publication Year :
2008

Abstract

Abstract: In this work, sulfonated poly(phthalazinone ether nitrile ketone)/boron phosphate (SPPENK/BPO4) composite membranes with BPO4 content from 10 to 30 wt.% were prepared from SPPENK matrix, tripropylborate (C3H7O)3B and phosphoric acid (H3PO4) via an in situ process. The composite membranes were characterized using X-ray diffraction, FT-IR and TGA, which revealed the interaction between the sulfonic acid groups of SPPENK and BPO4. The SPPENK/BPO4 composite membranes showed excellent thermal, oxidative and hydrolytic stabilities. The swelling ratios of composite membranes were about 5.0%, which was similar to that of SPPENK membrane. Proton conductivity of the composite membranes was studied under 100% relative humidity conditions up to 95 °C. A five-fold increase in proton conductivity was observed for the composite membrane with 30 wt.% BPO4. [Copyright &y& Elsevier]

Details

Language :
English
ISSN :
01672738
Volume :
179
Issue :
33/34
Database :
Academic Search Index
Journal :
Solid State Ionics
Publication Type :
Academic Journal
Accession number :
35325110
Full Text :
https://doi.org/10.1016/j.ssi.2008.05.003