Fluorene-Based Hydroxide Ion Conducting Polymers for Chemically Stable Anion Exchange Membrane Fuel Cells

被引：252

作者：

Lee, Woo-Hyung ^{[1
]}

Mohanty, Angela D. ^{[1
]}

Bae, Chulsung ^{[1
]}

机构：

[1] Rensselaer Polytech Inst, Dept Chem & Chem Biol, Troy, NY 12180 USA

来源：

ACS MACRO LETTERS | 2015年 / 4卷 / 04期

关键词：

HIGH-PERFORMANCE; CONJUGATED POLYELECTROLYTES; ELECTROLYTE; STABILITY; BENZYLMETHYL; POLYETHYLENE; DEGRADATION;

D O I：

10.1021/acsmacrolett.5b00145

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Three novel fluorene-based polymers with pendant alkyltrimethylammonium groups were synthesized and characterized. The polymers were soluble in dimethylformamide, and dimethyl sulfoxide at room temperature and methanol at 40 degrees C while remaining insoluble in water. The polymeric membranes were transparent and flexible and exhibited hydroxide ion conductivities above 100 mS/cm at 80 degrees C. The results of H-1 NMR and titration measurements demonstrated an excellent chemical stability of the synthesized polyfluorene, even after treatment in 1 M NaOH solution at 80 degrees C for 30 days. The results of this study suggest a feasible approach to the synthesis and practical applications of a new class of alkaline anion exchange membranes.

引用

页码：453 / 457

页数：5

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