Alternating donor–acceptor copolymers are important materials with readily tunable optical and electronic properties. Direct arylation polymerization (DArP) is emerging as an attractive synthetic methodology for the synthesis of these polymers, avoiding the use of prefunctionalized building blocks. However, challenges remain in achieving well‐defined structure, high molecular weight, and impurity‐free polymers. Herein, a study to synthesize three well‐defined donor–acceptor copolymers through DArP is presented. Comparison of ¹H NMR and ¹³C NMR, as well as optical and electrochemical properties analysis for the polymers and corresponding oligomers provides evidence for the regioregular structure of the polymers. On the basis of the chemical structure of poly(IIDCBT) and the solution electrochemical studies we surmised poly(IIDCBT) could potentially be an electron transport material for organic field‐effect transistors (OFETs), and we determined an electron mobility of 1.2×10⁻³ cm² V⁻¹ s⁻¹ for this material.

中文翻译：

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基于5,6-二氰基[2,1,3]苯并噻二唑（DCBT）的定义明确的交替共聚物的直接丙烯酸聚合（DArP）

供体-受体交替共聚物是重要的材料，具有易于调节的光学和电子特性。直接芳基化聚合反应（DArP）成为一种有吸引力的合成方法，用于合成这些聚合物，从而避免了使用预功能化的结构单元。但是，在获得定义明确的结构，高分子量和无杂质的聚合物方面仍然存在挑战。本文介绍了通过DArP合成三种定义明确的供体-受体共聚物的研究。¹ H NMR与¹³ H NMR的比较聚合物和相应的低聚物的13 C NMR以及光学和电化学性质分析为聚合物的区域规则结构提供了证据。根据聚（IIDCBT）的化学结构和溶液电化学研究，我们推测聚（IIDCBT）可能是有机场效应晶体管（OFET）的电子传输材料，我们确定的电子迁移率为1.2×10该材料的^-3  cm ²  V ^-1  s ^-1。