Synthesis and Characterization of Perfluoroalkyl Sulfonic Acid Functionalized Polyphosphazene for Proton-Conducting Membranes
| Autor: | Hulin Xu, Chaojun Jing, Jia-hong Xiao, Minlan He, Peng Liu, Xin Hao, Changjin Zhu, Fengyan Fu, Saghir Hussain, Shuzhen Zhang, Yan Dong |
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| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Proton exchange membrane fuel cell General Chemistry Polymer Sulfonic acid Coupling reaction chemistry.chemical_compound Membrane chemistry Polymer chemistry Materials Chemistry Ceramics and Composites Polyphosphazene Thermal stability Phosphazene |
| Zdroj: | Journal of Macromolecular Science, Part A. 51:55-62 |
| ISSN: | 1520-5738 1060-1325 |
| DOI: | 10.1080/10601325.2014.850624 |
| Popis: | Polyphosphazenes containing perfluoroalkyl sulfonic acids (PSA-P) were synthesized by the copper-catalyzed coupling reaction of poly[(4-bromophenoxy)(phenoxy)phosphazene] with potassium 1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-iodoethoxy) ethanesulfonate. Two synthetic protocols have been developed to obtain the polymers and 1, 10-phenanthroline was found benefit for improving the efficiency of the coupling reaction. The PSA-P membranes prepared by solution casting showed excellent thermal stability, oxidative stability and low swelling ratios. In addition, compared with the sulfonated poly[bis(phenoxy)phosphazene] membrane with similar IEC, the PSA-P membrane displayed significant superiority in proton conductivity, water resistance, oxidative and thermal stability, indicating that it is a good candidate for proton exchange membranes. |
| Databáze: | OpenAIRE |
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