Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (3): 576.doi: 10.7503/cjcu20180535

• Polymer Chemistry • Previous Articles     Next Articles

Preparation of Multicolor Electrochromic Polymer Composite Film with Laminated Structure

OUYANG Mi, ZHU Rui, LÜ Xiaojing*(), QU Xingxing, LI Weijun, LI Lin, LÜ Yaokang, ZHANG Cheng*()   

  1. College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
  • Received:2019-07-27 Online:2019-12-12 Published:2018-12-12
  • Contact: LÜ Xiaojing,ZHANG Cheng E-mail:doctorlv@zjut.edu.cn;czhang@zjut.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.51703199, 51673174, 51573165), the Natural Science Foundation of Zhejiang Province, China(No.LZ17E030001) and the New Talent Program of Zhejiang Provice, China(No.2018R403091).

Abstract:

Two electrochromic polymers,poly(3,4-ethylenedioxythiophene)(PEDOT) and poly{4,4',4″-tris[4-(2-bithienyl)pheny]amine}(PTBTPA)with different neutral absorption spectra and the complementary colors were synthesized via electrochemical polymerization method, respectively. Then the composite film with the laminated structure was controllably prepared by adjusting the electrochemical polymerization parameters. FTIR spectra and SEM images indicate that the laminated composite film is obtained. UV-Vis spectra and electrochemical measurements demonstrate that the composite film exhibits a noticeable electrochromism with reversible color changes from orange, blue to dark green, and maintains good electrochemical activity and optical contrast compared to those of the pristine PTBTPA film and PEDOT film. This work is to provide a simple and efficient method to build the laminated composite structure for achieving multicolor or even full-color electrochromic materials, which is also suitable for other electrochromic polymer systems.

Key words: Electrochromic, Electropolymerization, Laminated structure, Polymer composite, Multicolor display

CLC Number: 

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