Highly Regiosymmetric Homopolymer Based on Dioxythiophene for Realizing Water-Processable Blue-to-Transmissive Electrochrome

Abstract

A highly regiosymmetric homopolymer based on a diethyl malonate derivatized 3,4-propylenedioxythiophene (ProDOT) monomer was synthesized through FeCl3 oxidative polymerization and postpolymerization functionalization to realize a water-processable blue-to-transmissive switching electrochromic polymer (WPECP-blue). As an electrochromic material, the polymer has a high electrochromic contrast ΔTmax=56% at 580 nm and a relatively fast switching speed t95=1.8 s, and shows only contrast loss of 11% (from 56% to 45%) at square wave potential step of 5 s over 11,000 switching cycles, making it a desirable candidate for electrochromic applications such as windows and displays.

Controlling water adhesion on superhydrophobic surfaces with bi-functional polymers

“…The findings for ProDOTSiMe3 and ProDOT(SiMe3)2 are compared with previous results reported in the literature using ProDOT derivatives (Table 2) [28][29][30][31][32][33][34][35][36][37][38]. Indeed, various substituents including linear or branched alkyl chains, fluorinated chains as well as aromatic groups have been studied.…”

“…As such ProDOT serves as a flexible template for modification with different substituents offering a broad tunability of both surface structures and wetting properties [27][28][29][30][31]. In particular, when the substituents are orthogonal across the ProDOT moiety [32][33][34] long polymer chains and good quality fibers structures may be generated, and in this respect both hydrocarbon and chains and fluoroalkyl chains have been studied [35][36][37][38]. Here, we report for the first time the formation of nanofibrous structures from two kinds of ProDOT monomer, substituted with either one or two trimethylsilyl (TMS) groups.…”

Advanced functional polymer materials

“…76). 544 The polymer exhibited high electrochromic contrast (DT max ) of 56% at 580 nm and a relatively fast switching speed of 1.8 s; further, it exhibited contrast loss of only 11% (from 56% to 45%) for a squarewave potential step of 5 s over 11 000 switching cycles, making it a desirable candidate for large-area electrochromic applications such as windows and displays, which have been long-lived aspirations, as reported by Xu et al…”

Electrochromism in Electropolymerized Films of Pyrene-Triphenylamine Derivatives

“…This decreases the experimental time and cost and partially solves the solubility problem of some compounds. A large number of electropolymerized films have been prepared from monomers functionalized with thiophene or carbazole derivatives [22,23,24,25,26,27,28]. In addition, triphenylamine groups have been used as polymerizable units to prepare thin films of organic and metal complexes by electropolymerization [29,30,31,32].…”