Effect of a Sulfonated Benzothiadiazole Unit on the Morphology and Ion Conduction Behavior of a Polymer Electrolyte Membrane,Industrial & Engineering Chemistry Research

当前位置： X-MOL 学术 › Ind. Eng. Chem. Res. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Effect of a Sulfonated Benzothiadiazole Unit on the Morphology and Ion Conduction Behavior of a Polymer Electrolyte Membrane
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-10-03 , DOI: 10.1021/acs.iecr.8b02446
Shuntaro Amari ₁ , Shinji Ando _{1,

2} , Shoji Miyanishi ₁ , Takeo Yamaguchi _{1,

2}

Affiliation

From the viewpoint of improving the physical properties of ion conducting membranes, especially proton exchange membranes (PEMs), obtaining well-defined nanochannels using conjugated polymers has attracted a significant amount of attention. This study aims to propose a novel and simple molecular design concept for aromatic random copolymers based on sulfonated benzothiadiazole (SBT) units to induce nanostructuring. Using atomic force microscopy (AFM), it is confirmed that introducing a small amount of the SBT unit in the sulfonated [poly(arylene ether sulfone)] membrane induced significant hydrophilic and hydrophobic domain aggregation. Furthermore, these morphological transformations provided high density of proton carrier density in membrane and enabled effective proton conductivity even under low humidity condition (2.0 mS/cm at 30% RH). These results indicate that the SBT unit is a key trigger for constructing favorable nanostructure for ion transport and improving ion conductivity in the proton exchange membrane.

中文翻译：

磺化苯并噻二唑单元对高分子电解质膜的形貌和离子导电行为的影响

从改善离子传导膜，特别是质子交换膜（PEMs）的物理性能的观点来看，使用共轭聚合物获得明确的纳米通道已经引起了极大的关注。这项研究旨在为基于磺化苯并噻二唑（SBT）单元的芳族无规共聚物提出一种新颖而简单的分子设计概念，以诱导纳米结构化。使用原子力显微镜（AFM），已确认在磺化[聚（亚芳基醚砜）]膜中引入少量SBT单元会引起明显的亲水和疏水域聚集。此外，这些形态上的转变在膜中提供了高密度的质子载流子密度，即使在低湿度条件下（在30％RH时为2.0 mS / cm）也能实现有效的质子传导性。

更新日期：2018-10-04

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11