Proton-Conducting Properties of Acid-Doped Poly(glycidyl methacrylate)-1,2,4-Triazole Systems
✍ Scribed by Sevim Ünügür Çelik; Ümit Akbey; Ayhan Bozkurt; Robert Graf; Hans W. Spiess
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 396 KB
- Volume
- 209
- Category
- Article
- ISSN
- 1022-1352
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✦ Synopsis
Abstract
1,2,4‐triazole‐functional PGMA polymers have been synthesized and their anhydrous proton‐conducting properties were investigated after doping with phosphoric acid and triflic acid. PGMA was prepared by solution polymerization and then modified with 1__H__‐1,2,4‐triazole (Tri) and 3‐amino‐1,2,4‐triazole (ATri). FT‐IR, ^13^C NMR and elemental analysis verify the high immobilization of the triazoles in the polymer chain. Phosphoric‐acid‐doped polymers showed lower T~g~ and higher proton conductivities. PGMA‐Tri 4 H~3~PO~4~ showed a maximum water‐free proton conductivity of approximately 10^−2^ S · cm^−1^ while that of PGMA‐ATri 2 H~3~PO~4~ was 10^−3^ S · cm^−1^. The structure and dynamics of the polymers were explored by ^1^H MAS and ^13^C CP‐MAS solid‐state NMR.
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