Citation: Feng-yan Fu, Hu-lin Xu, Min-lan He, Yan Dong, Peng Liu, Xin Hao, Chang-jin Zhu. Composite Polyphosphazene Membranes Doped with Phosphotungstic Acid and Silica[J]. Chinese Journal of Polymer Science, ;2014, 32(8): 996-1002. doi: 10.1007/s10118-014-1459-0 shu

Composite Polyphosphazene Membranes Doped with Phosphotungstic Acid and Silica

Feng-yan Fu ¹ ,
Hu-lin Xu ² ,
Min-lan He ¹ ,
Yan Dong ¹ ,
Peng Liu ¹ ,
Xin Hao ¹ ,
Chang-jin Zhu ¹

1.
Department of Applied Chemistry, Beijing Institute of Technology, Beijing 100081, China
2.
Beijing Qintian Science &

Received Date: 11 November 2013
Revised Date: 21 January 2014

Poly(bis(phenoxy)phosphazene) (SPBPP)/phosphotungstic acid (PWA)/silica composite membranes for fuel cells were prepared. The composite membranes were characterized by using FTIR, TGA and SEM techniquies. Incorporation of PWA particles and silica particles into the SPBPP polymer matrix and a specific interaction between them were confirmed by FTIR spectra. TGA results showed that the composite membranes had high thermal stability. Homogeneous distribution of PWA and silica particles within the SPBPP matrix was verified by SEM micrographs. The doped membranes showed increased water uptake and proton conductivity.
- Sulfonated polyphosphazene,
- Composite membrane,
- Proton conductivity
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