Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
638870 | Journal of Membrane Science | 2006 | 9 Pages |
Abstract
Sulfonated poly(fluorenyl ether ketone)s with inherent viscosity ranging from 0.68 to 0.93Â dL/g were directly synthesized by aromatic nucleophilic polycondensation of bisphenol fluorene with various ratios of sulfonated difluorobenzophenone to difluorobenzophenone. The synthesized polymers were characterized by 1H NMR method and elemental analysis. The polymers were tested to be soluble in dipolar aprotic solvents such as DMAc, DMF and DMSO and can be readily cast into tough films. These films showed highly thermal degradation temperature, glass transition temperature and excellent water affinity as well as excellent proton conductivity. The polymers showed a promising proton membrane material for PEM fuel cell application.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Yulin Chen, Yuezhong Meng, Shuanjin Wang, Shuanghong Tian, Yong Chen, Allan S. Hay,