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