Finely Designed P3HT-Based Fully Conjugated Graft Polymer: Optical Measurements, Morphology, and the Faraday Effect
Finely Designed P3HT-Based Fully Conjugated Graft Polymer: Optical Measurements, Morphology, and the Faraday Effect
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精心设计的基于 P3HT 的全共轭接枝聚合物：光学测量、形态学和法拉第效应
DOI：
10.1021/acsami.0c08170
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发表时间：
2020
影响因子：
9.5
通讯作者：
Yu, Luping
中科院分区：
文献类型：
--
作者：
Liu, Xunshan;Turner, Emigdio E.;Sharapov, Valerii;Yuan, Dafei;Awais, Mohammad A.;Rack, Jeffrey J.;Yu, Luping
在这项工作中，我们的小组合成和表征了一个完全共轭的接枝聚合物，包括一个供体-受体分子骨架和区域规则的聚（3-己基噻吩）（RRP 3 HT）侧链。本文以二丁苯并二噻吩（BDT）为引发剂，通过Kumada催化剂转移缩聚反应合成了大分子单体（MM）。然后通过电感耦合等离子体质谱法（ICP-MS）研究MM的锡含量，这允许精确控制供体/受体单体比为1：1，用于随后的Stille偶联聚合朝向我们的接枝聚合物（BP）。聚合物的结构，然后通过凝胶渗透色谱（GPC），核磁共振，和元素分析进行了表征。其次是光学，电化学和物理性能的表征。然后测量接枝聚合物BP的磁光活性。结果表明，尽管存在受体骨架，聚合物BP仍保持了RRP 3 HT的特征性大法拉第旋转，其Verdet常数为2.39 ± 0.57（104）°/T·m.
In this work, our group synthesized and characterized a fully conjugated graft polymer comprising of a donor–acceptor molecular backbone and regioregular poly(3-hexylthiophene) (RRP3HT) side chains. Here, our macromonomer (MM) was synthesized via Kumada catalyst transfer polycondensation reaction based on ditin-benzodithiophene (BDT) initiator. The tin content ofMMwas then investigated by inductively coupled plasma-mass spectrometry (ICP-MS), which allowed for accurate control of donor/acceptor monomer ratio of 1:1 for the following Stille coupling polymerization toward our graft polymer (BP). The structures of the polymers were then characterized by gel permeation chromatography (GPC), NMR, and elemental analysis. This was followed by the characterization of optical, electrochemical, and physical properties. The magneto-optical activity of graft polymerBPwas then measured. It was found that, despite the presence of the acceptor backbone, the characteristic large Faraday rotation of RRP3HT was maintained in polymerBP, which exhibited a Verdet constant of 2.39 ± 0.57 (104) °/T·m.