含二氟化硼甲臢染料的 Glaser-Hay-Coupled 无规共聚物。

IF 4.2 3区 化学 Q2 POLYMER SCIENCE Macromolecular Rapid Communications Pub Date : 2024-10-27 DOI:10.1002/marc.202400786
Erin L Cotterill, Yasmeen Jaberi, Jasveer S Dhindsa, Paul D Boyle, Joe B Gilroy
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引用次数: 0

摘要

𝜋共轭聚合物(包括基于乙炔重复单元的聚合物)是一类令人兴奋的材料,具有窄光学带隙和可调前沿轨道能量,可用于有机电子学。这项研究通过合成和表征一系列格拉塞-海耦合模型化合物以及由 BF2 甲酰肼、芴和/或双(烷氧基)苯单元组成的无规共聚物,拓展了对乙炔聚合物结构-性质关系的认识。合成的模型化合物和共聚物显示出与 BF2 甲氮酸盐单元的可逆还原以及芴和双(烷氧基)苯单元的不可逆还原有关的氧化还原活性。共聚物显示出各自模型和均聚物特有的或中间的吸收曲线,对紫外-可见光有广泛的吸收。模型化合物和共聚物的炔链与 [Co2(CO)8] 发生反应,将炔官能团转化为羰基钴簇。由于π-共轭作用减弱,这种转化导致了蓝移吸收曲线,证明了通过聚合后官能化调整这些材料特性的能力。所报道聚合物的氧化还原活性和宽广的吸收带使其成为光伏和其他光收集应用的绝佳候选材料。
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Glaser-Hay-Coupled Random Copolymers Containing Boron Difluoride Formazanate Dyes.

𝜋-Conjugated polymers, including those based on acetylenic repeating units, are an exciting class of materials that offer narrow optical band gaps and tunable frontier orbital energies that lead to their use in organic electronics. This work expands the knowledge of structure-property relationships of acetylenic polymers through the synthesis and characterization of a series of Glaser-Hay-coupled model compounds and random copolymers comprised of BF2 formazanate, fluorene, and/or bis(alkoxy)benzene units. The model compounds and copolymers synthesized exhibit redox activity associated with the reversible reduction of the BF2 formazanate units and the irreversible reduction of the fluorene and bis(alkoxy)benzene units. The copolymers exhibit absorption profiles characteristic or intermediate of their respective models and homopolymers, leading to broad absorption of UV-vis light. The alkyne linkages of the model compounds and copolymers are reacted with [Co2(CO)8] to convert the alkyne functional groups into cobalt carbonyl clusters. This transformation leads to blue-shifted absorption profiles due to a decrease in π-conjugation, demonstrating the ability to tune the properties of these materials through post-polymerization functionalization. The redox activity and broad absorption bands of the polymers reported make them excellent candidates for use in photovoltaics and other light-harvesting applications.

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来源期刊
Macromolecular Rapid Communications
Macromolecular Rapid Communications 工程技术-高分子科学
CiteScore
7.70
自引率
6.50%
发文量
477
审稿时长
1.4 months
期刊介绍: Macromolecular Rapid Communications publishes original research in polymer science, ranging from chemistry and physics of polymers to polymers in materials science and life sciences.
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