Photoinduced cationic polycondensation in solid state towards ultralow band gap conjugated polymers
Photoinduced cationic polycondensation in solid state towards ultralow band gap conjugated polymers
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DOI：
10.1039/d0tc01257b
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发表时间：
2020-06-07
影响因子：
6.4
通讯作者：
Yu, Luping
中科院分区：
文献类型：
--
作者：
Liu, Xunshan;Sharapov, Valerii;Yu, Luping
采用光诱导阳离子缩聚法合成了噻吩并[3，4-B]噻吩（TT）均聚物PTT-L。通过一系列控制实验研究了反应机理。结果发现，聚合引发与光诱导的自由基形成，然后由阳离子的传播，所有在固态，在室温下，没有任何催化剂或溶剂。此外，通过Kumada催化剂转移缩聚（KCTP）合成参考聚合物（PTT-Ni）以辅助聚合物PTT-L的结构表征。结果表明，这两种聚合物表现出类似的光学，热学，电化学和电学性能。该聚合过程可用作形成图案化PTT-L膜的手段。
A photoinduced cationic polycondensation towards the synthesis of a thieno[3,4-b]thiophene (TT) based homopolymer PTT-L was described. The reaction mechanism was investigated by employing a series of control experiments. It was found that the polymerization initiated with a light-induced radical formation, followed by a cationic propagation, all in solid state, at room temperature, and without any catalyst or solvent. In addition, a reference polymer (PTT-Ni) was synthesized via Kumada catalyst transfer polycondensation (KCTP) to assist in structural characterization of polymer PTT-L. It was shown that both polymers exhibit analogous optical, thermal, electrochemical and electrical properties. This polymerization process can be utilized as a mean to form patterned PTT-L films.