物理化学学报 >> 2015, Vol. 31 >> Issue (10): 1888-1894.doi: 10.3866/PKU.WHXB201509062

电化学和新能源 上一篇    下一篇

多色显示树枝状聚(3, 6-双噻吩咔唑)及其共聚物的电化学和电致变色性能

边高峰1,2,胡彬3,欧阳密1,王萍静1,吕晓静1,*(),戴玉玉1,张诚1,*()   

  1. 1 浙江工业大学化学工程学院,杭州310014
    2 杭州师范大学有机硅化学及材料技术重点实验室,杭州311121
    3 周口师范学院,稀土功能材料及应用重点实验室,河南周口466001
  • 收稿日期:2015-07-13 发布日期:2015-10-10
  • 通讯作者: 吕晓静,张诚 E-mail:doctorlv@zjut.edu.cn;czhang@zjut.edu.cn
  • 基金资助:
    国家自然科学基金(51203138, 51273179);国际科技合作项目(2012DFA51210);浙江省自然科学基金(LY15E030006);浙江工业大学自然科学基金(1401101002408)

Electrochemical and Electrochromic Properties of Multichromic Pendritic Poly(3, 6-dithienycarbazole) and Its Copolymer

Gao-Feng. BIAN1,2,Bin. HU3,Mi. OUYANG1,Ping-Jing. WANG1,Xiao-Jing. LÜ1,*(),Yu-Yu. DAI1,Cheng. ZHANG1,*()   

  1. 1 College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
    2 Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou 311121, P. R. China
    3 The Key Laboratory of Rare Earth Functional Materials and Applications, Zhoukou Normal University, Zhoukou 466001, Henan Province, P. R. China
  • Received:2015-07-13 Published:2015-10-10
  • Contact: Xiao-Jing. Lü,Cheng. ZHANG E-mail:doctorlv@zjut.edu.cn;czhang@zjut.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(51203138, 51273179);Intenatonal S&T Cooperation Program,China(2012DFA51210);Natural Science Foundation of Zhejiang Province, China(LY15E030006);Natural Science Foundation of ZhejiangUniversity of Technology, China(1401101002408)

摘要:

设计合成了一种新型的基于咔唑单元的树枝状3, 6-双噻吩咔唑衍生物(BTCPh),通过电化学聚合法制备出其均聚物及与3, 4-乙烯二氧噻吩(EDOT)的共聚物薄膜.利用电化学工作站-紫外可见光谱联用装置对两种聚合物的光谱电化学和电致变色(EC)性能进行表征.测试结果表明,均聚物(PBTCPh)薄膜在不同电压下可显示黄、绿、蓝、灰四种颜色;而EDOT单元的引入使共聚物P(BTCPh-EDOT)进一步增加了掺杂态,从而显示出更加丰富的五种颜色(橙、绿、棕绿、蓝、灰).此外,两种聚合物薄膜均具有良好的光学对比度和快速的响应速度,因而使其在智能窗及显示器方面展现了潜在的应用前景.

关键词: 电致变色, 咔唑, 噻吩, 树枝状, EDOT

Abstract:

A novel dendritic carbazole derivative (BTCPh) was designed and synthesized by simple chemical route. Its homopolymer and copolymer of BTCPh with (3, 4-ethoxylene dioxythiophene) (EDOT) were electrochemically synthesized and characterized. Cyclic voltammetry and UV-Vis spectroscopy were used to investigate the spectroelectrochemical and electrochromic properties of the two polymers. The copolymer P(BTCPh-EDOT) film revealed richer electrochromic color than that of the homopolymer PBTCPh film (yellow, green, blue, and grey) and showed five different colors (orange, green, brown-green, blue, and grey) under various potentials, which may be attributed to the introduction of the EDOT unit generating more doped states of the polymer, resulting in richer colors. Electrochromic switching tests indicated that both polymers possess good optical contrast and fast switching times. These properties show promise for potential applications on smart windows and displays.

Key words: Electrochromism, Carbazole, Thiophene, Dendritic, EDOT

MSC2000: 

  • O646