Alkaline stability of ether bond free fluorene-based anion exchange polymer containing cycloaliphatic quaternary ammonium groups

被引：17
|
作者：
Salma, Umme [1 ,2 ]
Nagao, Yuki [1 ]
机构：
[1] Japan Adv Inst Sci & Technol, Sch Mat Sci, 1-1 Asahidai, Nomi, Ishikawa 9231292, Japan
[2] Mawlana Bhashani Sci & Technol Univ, Dept Chem, Santosh 1902, Tangail, Bangladesh
来源：
POLYMER DEGRADATION AND STABILITY | 2020年 / 179卷
关键词：
Anion exchange membrane; Alkaline stability; Polyfluorene; Quaternary ammonium; Degradation; FUEL-CELLS; ELECTROLYTE MEMBRANES; HYDROXIDE; CATIONS; PERFORMANCE; SULFONE)S; POLY(PHENYLENE); COPOLYMERS; MORPHOLOGY; TRANSPORT;
D O I：
10.1016/j.polymdegradstab.2020.109299
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Quaternary piperidinium cation was incorporated into aryl-ether-bond-free fluorene-based polymer by flexible alkyl side chains to synthesize a highly conductive and chemically stable anion exchange membrane (AEM). The membrane of the OH- form shows good solubility in dimethyl sulfoxide and methanol but not soluble in water. In a fully hydrated state, the OH- conductivity reached 58 mS cm(-1) at 80 degrees C. The results of H-1 NMR spectra revealed that the alkyl-substituted N-methylpiperidinium cationic group was excellent alkaline stable as only 13% cationic group was degraded after 168 h storage in 1 M NaOH solution at 80 degrees C. (c) 2020 Elsevier Ltd. All rights reserved.
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页数：9
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