Enhancing electrochromic properties of polypyrrole by silsesquioxane nanocages

被引：105
作者：
Ak, Metin [2 ,3 ]
Gacal, Burcin [1 ]
Kiskan, Baris [1 ]
Yagci, Yusuf [1 ]
Toppare, Levent [2 ]
机构：
[1] Istanbul Tech Univ, Dept Chem, TR-80626 Istanbul, Turkey
[2] Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey
[3] Pamukkale Univ, TR-20017 Denizli, Turkey
来源：
POLYMER | 2008年 / 49卷 / 09期
关键词：
polyhedral oligomeric silsesquioxane; conducting polymers; polypyrrole;
D O I：
10.1016/j.polymer.2008.03.023
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A new monomer, octa(thiophenephenyl)silsesquioxane (OThiophenePS) was synthesized via click chemistry. The chemical structure of OThiophenePS was characterized by nuclear magnetic resonance (H-1 NMR) and Fourier transform infrared (FT-IR) spectroscopies. Electrochemical polymerization of pyrrole with OThiophenePS was performed resulting in polypyrrole-attached, polyhedral oligomeric silsesquioxane (OPS-PPy). The spectroelectrochemical studies show that the electrochromic properties of (OPS-PPy) are superior to those of polypyrrole (PPy). This great improvement can be attributed to the more accessible doping sites and the facile ion movement during the redox switching brought by the loose packing of the PPy chains. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2202 / 2210
页数：9
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