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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/18024

Title: Alkaline stability of ether bond free fluorene-based anion exchange polymer containing cycloaliphatic quaternary ammonium groups
Authors: Salma, Umme
Nagao, Yuki
Keywords: Anion exchange membrane
alkaline stability
polyfluorene
quaternary ammonium
degradation
Issue Date: 2020-07-12
Publisher: Elsevier
Magazine name: Polymer Degradation and Stability
Volume: 179
Start page: 109299
DOI: 10.1016/j.polymdegradstab.2020.109299
Abstract: 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 °C. The results of^ 1H 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 °C.
Rights: Copyright (C)2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International license (CC BY-NC-ND 4.0). [http://creativecommons.org/licenses/by-nc-nd/4.0/] NOTICE: This is the author's version of a work accepted for publication by Elsevier. Umme Salma, Yuki Nagao, Polymer Degradation and Stability, 179, 2020, 109299, http://dx.doi.org/10.1016/j.polymdegradstab.2020.109299
URI: http://hdl.handle.net/10119/18024
Material Type: author
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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