Citation: Li-mei Wang, Qi-feng Zhang, Suo-bo Zhang. A Facile Method for Preparation of Cardo Poly(aryl ether sulfone) Bearing Pendent Sulfoalkyl Groups as Proton Exchange Membranes[J]. Chinese Journal of Polymer Science, ;2015, 33(9): 1225-1233. doi: 10.1007/s10118-015-1671-6 shu

A Facile Method for Preparation of Cardo Poly(aryl ether sulfone) Bearing Pendent Sulfoalkyl Groups as Proton Exchange Membranes

Received Date: 18 January 2015
Revised Date: 4 March 2015

Fund Project: This work was financially supported by the National Natural Science Foundation of China (No. 51203151) and the Program of Jilin Education Department (No. 93201201).

A series of cardo poly(aryl ether sulfone) copolymers bearing pendent sulfonic acid groups (SPES-X) have been prepared by a facile chemical graft method. The structure was confirmed by 1H-NMR spectra. The side-chain-type SPES-X membranes show significantly reduced swelling behavior and excellent mechanical properties as well as appropriate proton conductivity compared to the main-chain-type sulfonated polymers with similar ion exchange capacity (IEC) value. Moreover, they show methanol permeability in the range of 0.610-7-5.710-7 cm2/s which is lower than that of Nafion 117. All the results indicate that the SPES-X membranes are promising candidates for the direct methanol fuel cells.
- Side-chain type,
- Cardo poly(aryl ether sulfone),
- Proton exchange membrane
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