High fluorescent ethyl acrylate modified PEDOT‐MeNH₂ with enhanced electrochromic performance

Abstract

Two poly(2'-aminomethyl-3,4-ethylenedioxythienylene) (PEDOT-MeNH 2 ) derivatives were successfully synthesized by electrochemical polymerization of precursors, diethyl 3'- (((2,3-dihydrothieno[3,4-b][1,4]dioxin-2-yl) methyl)azanediyl)dipropanoate (monomer 1) and ethyl 3-(((2,3-dihydrothieno[3,4b][1,4]dioxin-2-yl) methyl)amino)propanoate (monomer 2), respectively. Structure-property relationships of monomers and polymers, including electrochemical, optical properties, and morphology, were systematically explored. Significantly, the designed polymers exhibited red and orange emission signatures with high fluorescence quantum yields (U F ) of 0.044 and 0.045 compared with those of monomers; they may be used as building blocks for rational design of fluorescent materials. Moreover, cyclic voltammetry and spectroelectrochemistry studies demonstrated that poly (diethyl 3'-(((2,3-dihydrothieno[3,4-b][1,4]dioxin-2-yl)methyl)azanediyl) dipropanoate) (P1) and poly(ethyl 3-(((2,3-dihydrothieno[3,4b][1,4]dioxin-2-yl)methyl)amino) propanoate) (P2) can be reversibly oxidized and reduced accompanied by obvious color changes from light purple to light blue for P1, and from purple to blue for P2. Furthermore, both P1 and P2 displayed higher optical contrasts (40-70%) in the visible region, favorable coloration efficiency (typically 50-230 cm 2 C 21 ). From these results, the two polymers would be promising candidate materials for display applications.

Click-based injectable bioactive PEG-hydrogels guide rapid craniomaxillofacial bone regeneration by the spatiotemporal delivery of rhBMP-2

“…28–30 The use of clickable PEG derivatives to prepare injectable hydrogels has been an interesting topic demonstrating diverse potential applications in biomedical fields. 31–37 Herein, poly[oligo(ethylene glycol) maleate] (POEGM) containing multi-enes and poly[oligo(ethylene glycol) mercaptosuccinate] (POEGMS) containing multi-thiols are synthesized on a large scale by polycondensation of oligo(ethylene glycol) (OEG) with functional diacids. Through a one-step facile mixing of the four aqueous components (POEGM + rhBMP-2, POEGMS, and rBMSCs) under physiological conditions, an injectable bioactive hydrogel is thus prepared through the thiol–ene “click” reaction.…”

Synthesis of Rhodamine and Carbazole Based Conductive Polymer for Fluorescence and Electrochromic Applications

“…In addition to, FCPs have structural stability, low cost and ease of response measurement. [22][23][24][25][26] Furthermore, thin film forming features of the FCPs with electrochemical methods provide great advantages. Because their morphological properties and thickness of film can be controlled by changing applied voltage or current, they allow the formation of fluorescent surfaces with desirable properties for sensing applications.…”