Synthesis and Properties of Sulfonated Polyimide for Proton Exchange Membrane

Chem. J. Chinese Universities

Synthesis and Properties of Sulfonated Polyimide for Proton Exchange Membrane

WANG Lei¹*, MENG Yue-Zhong², WANG Shuan-Jin², ZHU Guang-Ming¹

1. Shenzhen Key Laboratory of Special Functional Materials, College of Material Science, Shenzhen University, Shenzhen 518060, China;
2. Institute of Energy & Environment Materials, School of Physics & Engineering, Sun Yat-Sen University, Guangzhou 510275, China

Received:2006-11-27 Revised:1900-01-01 Online:2007-07-10 Published:2007-07-10
Contact: WANG Lei

Abstract

Abstract:

A novel sulfonated polyimide containing triphenyl methane as the polymer electrolytes for fuel cell appliaction was successfully synthesized. The sulfonic acid function was only attached at the para positions on the pendant phenyl rings due to the novel sulfonated diamine structures designed. The sulfonated polymers are very soluble in common organic solvents, such as dimethyl sulfoxide, N,N'-dimethylacetamide, and can be readily cast into tough and smooth films from solutions. The membranes show excellent hydrolytic and oxidative stabilities and can be potentially used as the proton-exchange membranes for fuel-cells.

Key words: Sulfonated polyimide, Proton exchange membrane, Hydrolytic stability

CLC Number:

O631

TrendMD:

WANG Lei¹*, MENG Yue-Zhong², WANG Shuan-Jin², ZHU Guang-Ming¹. Synthesis and Properties of Sulfonated Polyimide for Proton Exchange Membrane[J]. Chem. J. Chinese Universities, doi: .

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Synthesis and Properties of Sulfonated Polyimide for Proton Exchange Membrane

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