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基于茜素红S的薄膜的逐层组装及电化学研究

Layer-by-Layer Assembly and Electrochemical Study of Alizarin Red S-Based Thin Films.

作者信息

Ma Wei, Zhang Yanpu, Li Fei, Kou Donghui, Lutkenhaus Jodie L

机构信息

State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116023, China.

Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA.

出版信息

Polymers (Basel). 2019 Jan 18;11(1):165. doi: 10.3390/polym11010165.

DOI:10.3390/polym11010165
PMID:30960149
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6401759/
Abstract

Electroactive organic dyes incorporated in layer-by-layer (LbL) assemblies are of great interest for a variety of applications. In this paper, Alizarin Red S (ARS), an electroactive anthraquinone dye, is employed to construct LbL (BPEI/ARS) films with branched poly(ethylene imine) (BPEI) as the complementary polymer. Unconventional LbL methods, including co-adsorption of ARS and poly(4-styrene sulfonate) (PSS) with BPEI to assemble (BPEI/(ARS+PSS)), as well as pre-complexation of ARS with BPEI and further assembly with PSS to fabricate ((BPEI+ARS)/PSS), are designed for investigation and comparison. Film growth patterns, UV⁻Vis spectra and surface morphology of the three types of LbL assemblies are measured and compared to reveal the formation mechanism of the LbL films. Electrochemical properties including cyclic voltammetry and spectroelectrochemistry of (BPEI/ARS), (BPEI/(ARS+PSS)) and ((BPEI+ARS)/PSS) films are studied, and the results show a slight color change due to the redox reaction of ARS. ((BPEI+ARS)/PSS) shows the best stability among the three samples. It is concluded that the manner of dye- incorporation has a great effect on the electrochemical properties of the resultant films.

摘要

层层组装（LbL）体系中掺入的电活性有机染料在各种应用中具有极大的吸引力。在本文中，电活性蒽醌染料茜素红S（ARS）被用于与支化聚乙烯亚胺（BPEI）作为互补聚合物构建层层（BPEI/ARS）膜。设计了非常规的层层组装方法，包括ARS与聚（4-苯乙烯磺酸盐）（PSS）与BPEI共吸附以组装（BPEI/(ARS+PSS)），以及ARS与BPEI预络合并进一步与PSS组装以制备（(BPEI+ARS)/PSS），用于研究和比较。测量并比较了三种类型层层组装体的膜生长模式、紫外-可见光谱和表面形态，以揭示层层膜的形成机制。研究了（BPEI/ARS）、（BPEI/(ARS+PSS)）和（(BPEI+ARS)/PSS）膜的包括循环伏安法和光谱电化学的电化学性质，结果表明由于ARS的氧化还原反应有轻微的颜色变化。（(BPEI+ARS)/PSS）在三个样品中表现出最佳的稳定性。得出结论，染料掺入方式对所得膜的电化学性质有很大影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/17a1457065fd/polymers-11-00165-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/910f9506893b/polymers-11-00165-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/a93a6f0f0385/polymers-11-00165-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/964d02eb1617/polymers-11-00165-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/9714ab7c56de/polymers-11-00165-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/3d443eaf6680/polymers-11-00165-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/070ec41ba48f/polymers-11-00165-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/b5e8c9ff3460/polymers-11-00165-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/e5c71c3d513f/polymers-11-00165-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/17a1457065fd/polymers-11-00165-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/910f9506893b/polymers-11-00165-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/a93a6f0f0385/polymers-11-00165-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/964d02eb1617/polymers-11-00165-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/9714ab7c56de/polymers-11-00165-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/3d443eaf6680/polymers-11-00165-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/070ec41ba48f/polymers-11-00165-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/b5e8c9ff3460/polymers-11-00165-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/e5c71c3d513f/polymers-11-00165-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f13f/6401759/17a1457065fd/polymers-11-00165-g008.jpg

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