当前位置：
X-MOL 学术
›
Chem. Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Charge Transport in Conjugated Polymers with Pendent Stable Radical Groups
Chemistry of Materials ( IF 7.2 ) Pub Date : 2018-06-18 00:00:00 , DOI: 10.1021/acs.chemmater.8b02076 Yiren Zhang 1 , Albert M. Park 2 , Stephen R. McMillan 3 , Nicholas J. Harmon 3 , Michael E. Flatté 3 , Gregory D. Fuchs 2 , Christopher K. Ober 1
Chemistry of Materials ( IF 7.2 ) Pub Date : 2018-06-18 00:00:00 , DOI: 10.1021/acs.chemmater.8b02076 Yiren Zhang 1 , Albert M. Park 2 , Stephen R. McMillan 3 , Nicholas J. Harmon 3 , Michael E. Flatté 3 , Gregory D. Fuchs 2 , Christopher K. Ober 1
Affiliation
|
Synthesizing a stable radical polymer with a conjugated backbone seems like a natural way to introduce conductivity to radical polymers, which are traditionally synthesized with insulating, nonconjugated backbones. For charge storage applications that take advantage of the redox-active nature of stable radical polymers, enhanced conductivity would improve performance. To explore the interplay between stable radicals and a conjugated backbone, we prepared and studied soluble polythiophene with high regioregularity and various concentrations of pendent radical groups to systematically examine any change in conductivity with radical incorporation. Using electron paramagnetic resonance and electrical conductivity measurements, we show that there is an exponential decrease in conductivity as we increase the percentage of pendent groups attached to repeating units, which changes the conductivity by 6 orders of magnitude between the nonradical control polythiophene material and the material with the highest radical content (∼80%). These findings serve as an important guide to the future design of radical polymers on conjugated backbones with the goal of tuning conductivity as a function of stable radical content in redox-active energy storage applications.
中文翻译：
带有稳定侧基的共轭聚合物中的电荷传输
用共轭主链合成稳定的自由基聚合物似乎是将导电性引入自由基聚合物的自然方法，自由基聚合物传统上是用绝缘的非共轭主链合成的。对于利用稳定自由基聚合物的氧化还原活性性质的电荷存储应用，增强的电导率将改善性能。为了探索稳定基团和共轭主链之间的相互作用，我们制备并研究了具有高区域规整性的可溶性聚噻吩和各种浓度的侧基基团，以系统性地检查引入基团后电导率的变化。利用电子顺磁共振和电导率测量，我们发现随着我们增加连接到重复单元的侧基的百分比，电导率呈指数下降，这使非自由基控制的聚噻吩材料和具有最高自由基含量（〜80％）的材料之间的电导率变化了6个数量级。 ）。这些发现为将来在共轭骨架上设计自由基聚合物提供了重要指导，其目标是在氧化还原活性能量存储应用中根据稳定的自由基含量调节电导率。
更新日期：2018-06-18
中文翻译：
带有稳定侧基的共轭聚合物中的电荷传输
用共轭主链合成稳定的自由基聚合物似乎是将导电性引入自由基聚合物的自然方法，自由基聚合物传统上是用绝缘的非共轭主链合成的。对于利用稳定自由基聚合物的氧化还原活性性质的电荷存储应用，增强的电导率将改善性能。为了探索稳定基团和共轭主链之间的相互作用，我们制备并研究了具有高区域规整性的可溶性聚噻吩和各种浓度的侧基基团，以系统性地检查引入基团后电导率的变化。利用电子顺磁共振和电导率测量，我们发现随着我们增加连接到重复单元的侧基的百分比，电导率呈指数下降，这使非自由基控制的聚噻吩材料和具有最高自由基含量（〜80％）的材料之间的电导率变化了6个数量级。 ）。这些发现为将来在共轭骨架上设计自由基聚合物提供了重要指导，其目标是在氧化还原活性能量存储应用中根据稳定的自由基含量调节电导率。
京公网安备 11010802027423号