Oligoaniline-containing electrochromic polymers with tunable properties

eXPRESS Polymer Letters

Y. Li¹ 

关键词: smart polymers;    electrochromic;    oligoaniline;    electrofluorochromic;    electroactive;   

DOI  :  10.3144/expresspolymlett.2018.55

学科分类：生物科学（综合）

来源: eXPRESS Polymer Letters

【 摘 要 】

Electrochromic polymers have attracted much attention due to their potential applications in displays, smart windows,intelligent mirrors, and wearable devices. Here, a novel polyamic acid containing aniline pentamer with improvedelectrochromic properties and new functionalities was synthesized via oxidative coupling polymerization, followed by postpolymerizationof tetraaniline, polyhedral oligomeric silsesquioxane, and fluorene, respectively. With the introduction oftetraaniline pendants, the resultant polymer exhibits improved electrochromic performance with high optical contrast valueand rapid switching rate, because of the high content of electrochromic units in the polymeric structure. The polyamic acidfunctionalized with polyhedral oligomeric silsesquioxane, demonstrates a great enhancement of switching rate in the electrochromism,due to the rapid electrolyte migration through polymer film under electrochemical potentials. In addition, anew electrofluorochromic feature is easily achieved through the introduction of fluorescent fluorene groups into the polymericarchitecture.

【 授权许可】

CC BY