Main-Chain Cobaltocenium-Containing Ionomers for Alkaline Anion-Exchange Membranes

被引：10

作者：

Lin, Huina ^{[1
]}

Ramos, Luis ^{[1
]}

Hwang, JiHyeon ^{[1
]}

Zhu, Tianyu ^{[1
]}

Hossain, Md Waliullah ^{[1
]}

Wang, Qi ^{[2
]}

Garashchuk, Sophya ^{[1
]}

Tang, Chuanbing ^{[1
]}

机构：

[1] Univ South Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA

[2] Univ South Carolina, Dept Math, Columbia, SC 29208 USA

来源：

MACROMOLECULES | 2023年 / 56卷 / 16期

关键词：

OPENING-METATHESIS POLYMERIZATION; FUNCTIONALIZED POLYETHYLENE; METALLO-POLYELECTROLYTES; FUEL-CELLS; ROMP; PERFORMANCE; STABILITY; CHEMISTRY; TRANSPORT; OLEFINS;

D O I：

10.1021/acs.macromol.3c01384

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Cationic metallopolymers representa new class of ionomersas anion-exchangemembranes (AEMs) for transporting hydroxide ions in alkaline fuelcells. In this work, main-chain cobaltocenium-containing polymerswith a complete hydrocarbon framework were synthesized by ring-openingmetathesis polymerization (ROMP) of cobaltocenium-fused cycloalkenesand cis-cyclooctene followed by backbone hydrogenation.These copolymers with varied fractions of cobaltocenium exhibit highchemical and thermal stability, low swelling, and favorable mechanicalproperties, with hydroxide conductivity as high as 95 mS/cm and about94% retention of the conductivity after 45 days of exposure to highalkaline conditions. Comparison with side-chain cobaltocenium polymer-basedAEMs reveals that the main-chain hydrocarbon-based polymers endowlower water uptake and swelling ratio while maintaining similar ionexchange capacity and hydroxide conductivity.

引用

页码：6375 / 6384

页数：10

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