Anhydrous State Proton Conduction in Sulfonated Bisphenol A Polyetherimide with 1H-1,2,4 Triazole as Proton Solvent

作者：Guhathakurta Soma; Min Kyonsuku^*

来源：Journal of Polymer Science Part B: Polymer Physics , 2009, 47(22): 2178-2187.

DOI：10.1002/polb.21814

• 1H-1,2,4 triazole
• anhydrous proton conductivity
• melting point
• morphology
• sulfonated polyetherimide

In this study, bisphenol A polyetherimide was sulfonated to various degrees (22, 48, and 62%) by trimethylsilylchlorosulfonate (TMSCS). Novel anhydrous proton conducting polyelectrolytes were prepared by the incorporation of 1H-1,2,4-triazole (Taz) as proton solvent in sulfonated polyetherimide (SPEI) matrix. The conductivity reached about 2 x 10(-3) S/cm at 80 degrees C and 10(-2) S/cm at 140 degrees C. The temperature dependence proton conductivity of the polyelectrolytes followed Arrhenius equation. The conductivity improved considerably at a temperature close to the triazole melting temperature in SPEI(X)H matrix. It was proposed that the high mobility of the triazolium ions (vehicle diffusion), in addition to structure diffusion, contribute to the high conductivity of these proton conducting electrolytes above the melting temperature of triazole.

• 出版日期2009-11-15