N-Substituted Poly(3,4-propylenedioxypyrrole)s: High Gap and Low Redox Potential Switching Electroactive and Electrochromic Polymers

Autor:	Giirsel Sönmez, Kyukwan Zong, John R. Reynolds, Irina Schwendeman, Philippe Schottland
Rok vydání:	2003
Předmět:	chemistry.chemical_classification Conductive polymer Polymers and Plastics Organic Chemistry Doping Polymer Photochemistry Redox Polyelectrolyte Inorganic Chemistry Absorbance chemistry Electrochromism Polymer chemistry Materials Chemistry Transmittance
Zdroj:	Macromolecules. 36:639-647
ISSN:	1520-5835 0024-9297
Popis:	A series of electrochromic N-substituted poly(3,4-propylenedioxypyrrole)s (PProDOPs) are reported, which exhibit the combined properties of a high (>3 eV) electronic band gap, colored oxidatively doped forms, and easily accessible, low redox potentials. Utilizing methyl (Me), propyl (Pr), octyl (Oct), propanesulfonated (PrS), and ethoxyethoxyethanol (Gly) pendants, the absorbance of the π−π* transition of the resulting polymers is blue-shifted when compared to the nonderivatized parent. For example, in the case of poly(N-ethoxyethoxyethanol ProDOP) (N-Gly PProDOP), this transition displays a maximum at 306 nm (onset at 365 nm), providing a colorless and highly transparent neutral polymer with a luminous transmittance greater than 99% for a film thickness of about 200 nm. N-Substituted PProDOPs display very well-defined cyclic voltammograms, with E1/2 < −0.1 V vs Fc/Fc+ (+0.2 V vs SCE), negative of the oxidation of water, as desired for materials having stable doped forms and long-lived redox switching pro...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::39a57a7e79f373df583ba824b5605358 https://doi.org/10.1021/ma021108x Zobrazit plný text záznamu