Comparative Optoelectronic Study between Copolymers of Peripherally Alkylated Dithienosilole and Dithienogermole
Comparative Optoelectronic Study between Copolymers of Peripherally Alkylated Dithienosilole and Dithienogermole
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DOI：
10.1021/ma202374c
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发表时间：
2012-01-24
期刊：
影响因子：
5.5
通讯作者：
Heeney, Martin
中科院分区：
文献类型：
--
作者：
Fei, Zhuping;Kim, Youngju;Heeney, Martin
在这里，我们报告了一个简单的方法，用于合成二噻吩甲硅烯和二噻吩甲锗单体，其中必要的增溶长链烷基被纳入到稠环的外围3，5-位。我们报道了四种新型的单体，其中甲基或丁基连接到桥硅和锗原子。采用Stifle聚合法合成了高分子量的联噻吩共聚物。我们报告了所得聚合物的光学，电学，电化学和形态学性质。我们发现，桥接杂原子（Si或Ge）的性质对这些性质只有很小的影响，而连接到桥接原子的烷基链的性质被发现有更大的影响。
Here we report a simple methodology for the synthesis of dithienosilole and dithienogermole monomers in which the necessary solubilizing long chain alkyl groups are incorporated into the peripheral 3,5-positions of the fused ring. We report four novel monomers in which methyl or butyl groups are attached to the bridging Si and Ge atom. Copolymers with bithiophene were synthesized by a Stifle polymerization in high molecular weight. We report the optical, electrical, electrochemical and morphological properties of the resulting polymers. We find that the nature of the bridging heteroatom (Si or Ge) has only a minor influence on these properties, whereas the nature of the alkyl chain attached to the bridging atom is found to have a much larger effect.