Citation: Hai Yan Pan, Yong Fang Liang, Xiu Ling Zhu, Xi Gao Jian. Synthesis and characterization of novel sulfonated polyimide containing phthalazinone moieties as PEM for PEMFC[J]. Chinese Chemical Letters, ;2007, 18(9): 1148-1150. doi: 10.1016/j.cclet.2007.06.032 shu

Synthesis and characterization of novel sulfonated polyimide containing phthalazinone moieties as PEM for PEMFC

Department of Polymer Science and Materials, Dalian University of Technology, Dalian 116012, China

Received Date: 28 April 2007

Fund Project: This work is financially supported by the National Natural Science Foundation of China (No.50373005).

A novel sulfonated diamine monomer, 1, 2-dihydro-2-(3-sulfonic-4-aminophenyl)-4-[4-(4-aminophenoxy)-phenyl]phthalazinl-one (S-DHPZDA), was successfully synthesized by direct sulfonation of diamine 1, 2-dihydro-2-(4-aminophenyl)-4-[4-(4-aminophenoxy)-phenyl]-phthalazin-1-one (DHPZDA). A series of sulfonated polyimides (SPIs), which can be used as the material of the proton exchange membrane (PEM) for the proton exchange membrane fuel cell (PEMFC), were prepared from 1, 4, 5, 8-naphthalenetetracarboxylic dianhydride (NTDA), S-DHPZDA, and nonsulfonated diamines DHPZDA. The structure of the monomer and polymers were characterized by FT-IR and ¹H NMR. The solubility of the S-DHPZDA-based SPIs has been improved due to the induction of the phthalazione moiety. The SPIs membranes have high thermo-stability, predominant swelling resistance with high ion exchange capacity.
- Sulfonated polyimide,
- Proton exchange membrane,
- PEMFC
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