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在柔性链和刚性链聚电解质混合物存在下的聚（3,4-亚乙基二氧噻吩）电合成

Poly(3,4-ethylenedioxythiophene) Electrosynthesis in the Presence of Mixtures of Flexible-Chain and Rigid-Chain Polyelectrolytes.

作者信息

Kabanova Varvara, Gribkova Oxana, Nekrasov Alexander

机构信息

A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS, Leninskii prospect 31, 119071 Moscow, Russia.

出版信息

Polymers (Basel). 2021 Nov 9;13(22):3866. doi: 10.3390/polym13223866.

DOI:10.3390/polym13223866
PMID:34833165
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8623408/
Abstract

The electrochemical synthesis of poly(3,4-ethylenedioxythiophene) (PEDOT) was first carried out in the presence of mixtures of flexible-chain and rigid-chain polyacids and their Na-salts. Earlier on with the example of polyaniline, we have shown the non-additive effect of the rigid-chain component of polyacid mixtures on the electrodeposition of polyaniline films, their morphology and spectroelectrochemical properties. In this study, we confirmed the non-additive effect and showed that such mixed PEDOT-polyelectrolyte films possess unique morphology, spectroelectrochemical and ammonia sensing properties. The electrosynthesis was carried out in potential cycling, galvanostatic and potentiostatic regimes and monitored by in situ UV-Vis spectroscopy. UV-Vis spectroelectrochemistry of the obtained PEDOT-polyelectrolyte films revealed the dominating influence of the rigid-chain polyacid on the electronic structure of the mixed complexes. The mixed PEDOT-polyacid films demonstrated the best ammonia sensing performance (in the range of 5 to 25 ppm) as compared to the films of individual PEDOT-polyelectrolyte films.

摘要

聚（3,4-乙撑二氧噻吩）（PEDOT）的电化学合成首次是在柔性链和刚性链多元酸及其钠盐的混合物存在下进行的。早些时候以聚苯胺为例，我们已经展示了多元酸混合物的刚性链组分对聚苯胺膜电沉积、其形态和光谱电化学性质的非加和效应。在本研究中，我们证实了这种非加和效应，并表明这种混合的PEDOT-聚电解质膜具有独特的形态、光谱电化学和氨传感性质。电合成是在电位循环、恒电流和恒电位模式下进行的，并通过原位紫外-可见光谱进行监测。所获得的PEDOT-聚电解质膜的紫外-可见光谱电化学揭示了刚性链多元酸对混合配合物电子结构的主导影响。与单个PEDOT-聚电解质膜的膜相比，混合的PEDOT-多元酸膜表现出最佳的氨传感性能（在5至25 ppm范围内）。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/aa674c416290/polymers-13-03866-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/78171fc8416e/polymers-13-03866-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/86e914e7dc29/polymers-13-03866-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/32dadec093e7/polymers-13-03866-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/7724c0422be0/polymers-13-03866-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/c946fb070c75/polymers-13-03866-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/7c22dd99436d/polymers-13-03866-g006a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/98ea0e35a93c/polymers-13-03866-g007a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/34c2e63ae766/polymers-13-03866-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/aa674c416290/polymers-13-03866-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/78171fc8416e/polymers-13-03866-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/86e914e7dc29/polymers-13-03866-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/32dadec093e7/polymers-13-03866-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/7724c0422be0/polymers-13-03866-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/c946fb070c75/polymers-13-03866-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/7c22dd99436d/polymers-13-03866-g006a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/98ea0e35a93c/polymers-13-03866-g007a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/34c2e63ae766/polymers-13-03866-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5990/8623408/aa674c416290/polymers-13-03866-g009.jpg

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