Mixed-Ligand Approach to Palladium-Catalyzed Direct Arylation Polymerization: Synthesis of Donor-Acceptor Polymers with Dithienosilole (DTS) and Thienopyrroledione (TPD) Units
Mixed-Ligand Approach to Palladium-Catalyzed Direct Arylation Polymerization: Synthesis of Donor-Acceptor Polymers with Dithienosilole (DTS) and Thienopyrroledione (TPD) Units
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DOI：
10.1021/acs.macromol.5b00526
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发表时间：
2015-05-12
期刊：
影响因子：
5.5
通讯作者：
Ozawa, Fumiyuki
中科院分区：
文献类型：
--
作者：
Iizuka, Eisuke;Wakioka, Masayuki;Ozawa, Fumiyuki
本文报道了钯催化的直接芳基化聚合（DArP）法合成二噻吩并噻咯（TPD）和噻吩并吡咯二酮（DArP）的交替共聚物。虽然DArP作为一种不需要预先制备有机金属单体的简单的π共轭聚合物合成方法最近引起了人们的广泛关注，但有两个主要问题必须消除。一种是在聚合物链中产生结构缺陷的均偶联，另一种是通过产生不溶性材料。在本研究中，我们发现，P（2-MeOC 6 H 4）（3）和P（2-Me 2NC 6 H 4）（3）配体的组合使用有效地防止了这些副反应，导致高收率（84%）的具有良好溶解性的聚（DTS-alt-TPD）（M-n（GPC）= 15000，M-w/M-n = 2.57）。
This paper, reports the synthesis of an alternating, copolymer consisting of dithienosilole (DTS) and thienopyrroledione (TPD) units via palladium-catalyzed direct arylation polymerization (DArP). Although DArP has recently attracted much attention as an easy synthetic method of pi-conjugated polymers without the need for prepreparation of organometallic monomers, there are two major problems that must he eliminated. One is homocoupling producing structural defects in the polymer chain, and the other is by production of insoluble materials. In this study, we have found that the combined use of P(2-MeOC6H4)(3) and P(2-Me2NC6H4)(3) ligands effectively prevents these side reactions, resulting in poly(DTS-alt-TPD) (M-n(GPC) = 15000, M-w/M-n = 2.57) with good solubility in high yield (84%).