Facile and green fabrication of polybenzoxazine-based composite anion-exchange membranes with a self-cross-linked structure

被引：19

作者：

Qaisrani, Naeem Akhtar ^{[1
]}

Ma, Yanjiao ^{[1
]}

Ma, Lingling ^{[1
]}

Liu, Jiafei ^{[1
]}

Gao, Li ^{[1
]}

Li, Lv ^{[1
]}

Gong, Shoutao ^{[1
]}

Yan, Xiaoming ^{[1
]}

Zhang, Fengxiang ^{[1
]}

He, Gaohong ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Fine Chem, Sch Chem & Petr Engn, 2 Dagong Rd, Liaodongwan New Dist 124221, Panjin, Peoples R China

来源：

IONICS | 2018年 / 24卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Anion-exchange membrane; Polybenzoxazine; PTFE; Self-cross-linked; ALKALINE FUEL-CELLS; POLY(ETHER ETHER KETONE); SIDE-CHAIN; PERFORMANCE; QUATERNARY; STABILITY; HYDROXIDE; POLYMERIZATION; CONDUCTIVITY; POLYMERS;

D O I：

10.1007/s11581-017-2433-y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new type of composite anion-exchange membrane is fabricated using benzoxazine (Bz) monomer and polytetrafluoroethylene (PTFE) via a green and facile method. Membrane fabrication is achieved via in situ ring-opening polymerization of Bz within the PTFE matrix, followed by quaternization and ion-exchange reactions. The quaternized PBz works as a self-cross-linked and anion conductive polymer. The synthesized membranes show improved conductivity (26 to 70 mS/cm) at a reasonable water uptake and a low swelling ratio; they also show improved alkaline stability for 150 h at 60 A degrees C in 1 M KOH solution, the decrease in conductivity being only ca. 10%. Our method of AEM fabrication is advantageous over conventional ones due to facile process and the avoidance of chloro- or bromomethylation as well as the self-cross-linked structure; the resulting membranes show relatively good performance as compared with some of those obtained from conventional techniques.

引用

页码：3053 / 3063

页数：11

共 42 条

[1] Anion Conductive Aromatic Copolymers from Dimethylaminomethylated Monomers: Synthesis, Properties, and Applications in Alkaline Fuel Cells [J].