通过Suzuki偶联聚合反应,合成了一类新型低带隙交替共聚物-三苯胺-alt-4,7-二(3-己基噻吩)-[2,1,3]苯并噻二唑 (PTPADHDBT).聚合物数均分子量Mn=9420,分散系数Mw/Mn=3.2.PTPADHDBT溶液的两个吸收峰分别位于355nm与514nm, 光学带隙为2.02eV.而聚合物薄膜的吸收峰分别位于356nm与523nm,与溶液中的吸收峰相比红移了9nm;聚合物溶液和薄膜的荧光发射峰分别为677nm和683nm,与溶液的发射峰相比,薄膜的荧光发射峰红移了6nm.
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