用于多色和近红外电致变色应用的无色三苯胺基脂肪族热固性环氧树脂。

Colorless triphenylamine-based aliphatic thermoset epoxy for multicolored and near-infrared electrochromic applications.

机构信息

Functional Polymeric Materials Laboratory, Institute of Polymer Science and Engineering, National Taiwan University , 1 Roosevelt Road, 4th Sec., Taipei 10617, Taiwan.

出版信息

ACS Appl Mater Interfaces. 2014 Mar 12;6(5):3594-9. doi: 10.1021/am405803z. Epub 2014 Feb 4.

DOI:10.1021/am405803z

PMID:24456516

Abstract

In this study, two novel colorless thermoset epoxy resins with anodically electrochromism were prepared from the thermal curing of two triphenylamine-based diamine monomers, 4,4'-diamino-4″-methoxytriphenylamine (1) and N,N'-bis(4-aminophenyl)-N,N'-di(4-methoxylphenyl)-1,4-phenylenediamine (2) with aliphatic epoxy triglycidyl isocyanurate, respectively. The resulting thermoset epoxy resins showed excellent softening temperature (Ts, 270 and 280 °C) due to the rigid structure and highly crosslinking density. In addition, novel colorless epoxy resin films revealed good reversible electrochemical oxidation and interesting multi-electrochromic behavior with high contrast ratio both in visible and near-infrared regions. The aliphatic thermoset epoxy resins also exhibited high transparency in visible region as colorless and great potential for practical electrochromic applications.

摘要

在这项研究中，通过热固化两种基于三苯胺的二胺单体，4,4'-二氨基-4"-甲氧基三苯胺（1）和 N,N'-双（4-氨基苯基）-N,N'-二（4-甲氧基苯基）-1,4-苯二胺（2），分别制备了两种具有阳极电致变色的无色热固性环氧树脂。所得热固性环氧树脂由于刚性结构和高交联密度，表现出优异的软化温度（Ts，270 和 280°C）。此外，新型无色环氧树脂薄膜具有良好的可逆电化学氧化性能，在可见光和近红外区域表现出有趣的多色电致变色行为，对比度高。脂肪族热固性环氧树脂在可见光区域也表现出无色的高透明度和在实用电致变色应用中的巨大潜力。