Synthesis and exceptional operational durability of polyaniline-inspired conductive ladder polymers
Synthesis and exceptional operational durability of polyaniline-inspired conductive ladder polymers
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聚苯胺启发的导电梯形聚合物的合成和卓越的操作耐久性
DOI：
10.1039/d3mh00883e
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发表时间：
2023
影响因子：
13.3
通讯作者：
Dunbar, Kim
中科院分区：
文献类型：
--
作者：
Leng, Mingwan;Koripally, Nandu;Huang, Junjie;Vriza, Aikaterini;Lee, Kyeong Yeon;Ji, Xiaozhou;Li, Chenxuan;Hays, Megan;Tu, Qing;Dunbar, Kim
梯形结构可以赋予聚合物电子材料优异的稳定性。本文介绍了一类具有完全梯形骨架的新型导电聚合物。一个明智的分子设计策略，使低缺陷的梯形聚合物，它可以有效地氧化和酸掺杂，以实现其导电状态的合成。这种聚合物的结构阐明和其开壳性质的表征，促进了小分子模型的研究的援助。自动机器人系统用于优化聚合物薄膜的电导率，达到7 mS cm−1以上。令人印象深刻的是，这种聚合物在强酸和苛刻的紫外线照射下表现出无与伦比的稳定性，大大超过了PEDOT：PSS和聚苯胺等商业基准。此外，其作为电致变色装置中的活性材料和作为超级电容器装置中的赝电容材料在许多氧化还原循环中显示出上级耐久性。这项工作提供了持久的导电聚合物的长期设备操作的结构设计指导。
Ladder-type structures can impart exceptional stability to polymeric electronic materials. This article introduces a new class of conductive polymers featuring a fully ladder-type backbone. A judicious molecular design strategy enables the synthesis of a low-defect ladder polymer, which can be efficiently oxidized and acid-doped to achieve its conductive state. The structural elucidation of this polymer and the characterization of its open-shell nature are facilitated with the assistance of studies on small molecular models. An autonomous robotic system is used to optimize the conductivity of the polymer thin film, achieving over 7 mS cm−1. Impressively, this polymer demonstrates unparalleled stability in strong acid and under harsh UV-irradiation, significantly surpassing commercial benchmarks like PEDOT:PSS and polyaniline. Moreover, it displays superior durability across numerous redox cycles as the active material in an electrochromic device and as the pseudocapacitive material in a supercapacitor device. This work provides structural design guidance for durable conductive polymers for long-term device operation.