Enhancing the morphology and electrochromic stability of polypyrrole via PEG-PPG-PEG templating in vapour phase polymerisation

被引：0

作者：

20140117152053

机构：

[1] Brooke, Robert

[2] Evans, Drew

[3] Hojati-Talemi, Pejman

[4] Murphy, Peter

[5] Fabretto, Manrico

来源：

Evans, D. (drew.evans@unisa.edu.au) | 1600年 / Elsevier Ltd卷 / 51期

关键词：

Despite many investigations of the conducting polymer polypyrrole; its ultimate potential for electrochromic and organic electronic applications has been hampered by a lack of electrical stability. In this study the stability of polypyrrole has been enhanced by introducing a triblock copolymer; poly(ethylene glycol) - poly(propylene glycol) - poly(ethylene glycol) (PEG-PPG-PEG); into the oxidant solution in the vapour phase polymerisation (VPP) process. The inclusion of this triblock copolymer produces polypyrrole thin films with (favorably) smooth and uniform morphology; an RMS surface roughness of ca. 4 nm; combined with an increase in electrical switching stability and conductivity. When the homopolymers PEG or PPG are employed in the oxidant; the resulting films do not show the same magnitude of stability; morphological or electrical enhancement. Increasing the amount of PEG-PPG-PEG in the oxidant solution yields a decrease in the thickness of the polypyrrole films with a concomitant reduction in the measured band gap and a red shift of the absorbance peak. This enhanced polypyrrole demonstrates the expected electrochromic behaviour; but with a greater than 20-fold increase in electrical switching stability. © 2013 Elsevier Ltd. All rights reserved;

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Journal article (JA)

引用

共 7 条

[1] Enhancing the morphology and electrochromic stability of polypyrrole via PEG-PPG-PEG templating in vapour phase polymerisation
Brooke, Robert
Evans, Drew
Hojati-Talemi, Pejman
Murphy, Peter
Fabretto, Manrico
EUROPEAN POLYMER JOURNAL, 2014, 51 : 28 - 36
[2] α,ω-Diphenylalanine-End-Capping of PEG-PPG-PEG Polymers Changes the Micelle Morphology and Enhances Stability of the Thermogel
Kim, Hae An
Lee, Hyun Jung
Hong, Ja Hye
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BIOMACROMOLECULES, 2017, 18 (07) : 2214 - 2219
[3] Thermodynamic properties and morphology of 2D NBR/ PEG-PPG-PEG networks
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El Haitami, Alae
Ober, Patrick
Backus, Ellen H. G.
Cantin, Sophie
POLYMER, 2022, 257
[4] Vacuum vapour phase polymerization of high conductivity PEDOT: Role of PEG-PPG-PEG, the origin of water, and choice of oxidant
Mueller, Michael
Fabretto, Manrico
Evans, Drew
Hojati-Talemi, Pejman
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[5] Hyaluronic acid-g-PPG and PEG-PPG-PEG hybrid thermogel for prolonged gel stability and sustained drug release
Kim, Soyeon
Lee, Hyun Jung
Jeong, Byeongmoon
CARBOHYDRATE POLYMERS, 2022, 291
[6] Influence of PEG-ran-PPG Surfactant on Vapour Phase Polymerised PEDOT Thin Films
Fabretto, Manrico
Mueller, Michael
Zuber, Kamil
Murphy, Peter
MACROMOLECULAR RAPID COMMUNICATIONS, 2009, 30 (21) : 1846 - 1851
[7] Enhancing Efficiency and Photo-Stability of Organic Solar Cells via Vertical Phase Separation Morphology Induced by Surface Modification of PEDOT:PSS with Star-Shaped Benzene-Based DFTAB Additive
Sun, Xiaokang
Lv, Jie
Ding, Xiaoman
Gao, Chuanlin
Zhang, Guangye
Zeng, Jinfeng
Zou, Chao
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Yang, Chunming
Hu, Hanlin
Chen, Hu
ACS MATERIALS LETTERS, 2024, 6 (08): : 3282 - 3290

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