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合成了两种低聚噻吩衍生物单体:2,3’:4’,2’’-三噻吩(I3T)和5,5’’-二醛基-2,3’:4’,2’’-三噻吩(OHC-I3T-CHO).通过电化学方法对单体I3T和OHC-I3T-CHO进行了聚合,制备了相应的聚噻吩衍生物.研究了聚噻吩衍生物薄膜的电致变色性能.当外加一定电压时,基于单体I3T的聚噻吩衍生物薄膜可以在淡黄色和淡蓝色之间发生可逆的颜色变化,基于单体OHC-I3T-CHO的聚噻吩衍生物薄膜能在红色和墨绿色间发生可逆的颜色变化.
Two oligomeric thiophene derivative monomers were synthesized: 2,3 ’: 4’, 2 “-trithiophene (I3T) and 5,5” -dialdehyde-2,3 ’: 4’, 2 ’ ’-Thithiophene (OHC-I3T-CHO) .Through the polymerization of monomers I3T and OHC-I3T-CHO by electrochemical method, the corresponding polythiophene derivatives were prepared.The electrochromic properties of polythiophene derivatives Performance. When a certain voltage is applied, the polythiophene derivative film based on the monomer I3T can undergo reversible color change between light yellow and light blue, and the polythiophene derivative film based on the monomer OHC-I3T-CHO can undergo reversible color change Reversible color change occurs between red and dark green.