Hybrid π-conjugated polymers from dibenzo pentacyclic centers：precursor design,electrosynthesis and electrochromics  

作　　者：Kaiwen Lin Shuai Chen Baoyang Lu Jingkun Xu 

机构地区：[1]School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, China

出　　处：《Science China Chemistry》2017年第1期38-53,共16页中国科学（化学英文版）

基　　金：the National Natural Science Foundationof China(51303073,51463008,51572117);the Ganpo Outstanding Talents 555 projects(2013);the National Science Fund for Distinguished Young Scholars in Jiangxi Province,Key Project of Jiangxi Educational Committee(GJJ150795);the Natural Science Foundation of Jiangxi Province(20161BAB216130);Scientific Fund of Jiangxi Science & Technology Normal University(2014QNBJRC003);Jiangxi Science & Technology Normal University Program for Scientific Research Innovation Team (2015CXTD001);Scientific Research Foundation for Doctors in Jiangxi Science & Technology

摘　　要：π-Conjugated polymers(CPs)represent one of the quite important and rapidly growing branches of flexible electrochromic materials.Electrosynthesized hybrid CPs employing dibenzo pentacycles(fluorenes,carbazoles,dibenzothiophenes,and dibenzofuran)as the backbones have received considerable attention owing to their special structures and interesting electrochromic performances.Recent studies show that polymers from these structures exhibit decent contrast ratios,favorable coloration efficiencies,low switching voltages,fast response time,excellent stability,and color persistence.Intrinsically,their electrochromic properties significantly depend on fine-tailoring of precursor monomer structures,and polymerization techniques and conditions.This review devotes to showing a clear picture of the research progress of dibenzo pentacycle-centered CPs via electrochemical polymerization,including fluorenes,carbazoles,dibenzothiophenes,and dibenzofuran-based hybrid electrochromic polymers.Critical influences of the tailored precursor structures on their electropolymerization and resultant polymer performances are highlighted,aiming at providing an insight for the development of novel fused ring-based polymer electrochromic materials.π-Conjugated polymers（CPs）represent one of the quite important and rapidly growing branches of flexible electrochromic materials.Electrosynthesized hybrid CPs employing dibenzo pentacycles（fluorenes,carbazoles,dibenzothiophenes,and dibenzofuran）as the backbones have received considerable attention owing to their special structures and interesting electrochromic performances.Recent studies show that polymers from these structures exhibit decent contrast ratios,favorable coloration efficiencies,low switching voltages,fast response time,excellent stability,and color persistence.Intrinsically,their electrochromic properties significantly depend on fine-tailoring of precursor monomer structures,and polymerization techniques and conditions.This review devotes to showing a clear picture of the research progress of dibenzo pentacycle-centered CPs via electrochemical polymerization,including fluorenes,carbazoles,dibenzothiophenes,and dibenzofuran-based hybrid electrochromic polymers.Critical influences of the tailored precursor structures on their electropolymerization and resultant polymer performances are highlighted,aiming at providing an insight for the development of novel fused ring-based polymer electrochromic materials.

关 键 词：FLUORENES CARBAZOLES DIBENZOTHIOPHENES DIBENZOFURAN polymer synthesis electrochemistry electrochromism 

分 类 号：O631[理学—高分子化学]