期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 21, 期 14, 页码 5511-5518出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm04385k
关键词
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资金
- National Natural Science Foundation of China [21074044]
- Science and Technology Development Plan of Jilin Province [20100110]
With the goal of reducing water swelling and methanol permeability in sulfonated proton exchange membranes (PEM), bromomethylated poly(ether ether ketone) was synthesized and used as a macromolecular cross-linker. The cross-linking reaction was performed at 195 degrees C for 5 h and resulted in cross-linked membranes with high cross-linked density. Compared to the pristine membrane, the cross-linked membranes displayed greatly reduced water uptake and methanol permeability. Other properties of the cross-linked membranes, including proton conductivity, mechanical properties, and oxidative stability, were also investigated and compared with the pristine membrane. All the results indicated that the novel macromolecular cross-linker and the resulting cross-linked membranes are promising for fuel cell applications.
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