Fusible Poly(3-alkylselenophene) and Its Properties

Autor:	Ryu-ichi Sugimoto, Keiji Sawada, Mitsuyoshi Onoda, Yasuhisa Manda, Katsumi Yoshino, Shigehito Inoue
Rok vydání:	1989
Předmět:	Steric effects Conductive polymer chemistry.chemical_classification Absorption spectroscopy Chemistry Band gap General Engineering General Physics and Astronomy Fusible alloy Crystallography Electrical resistivity and conductivity Polymer chemistry Solubility Alkyl
Zdroj:	Japanese Journal of Applied Physics. 28:L138
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.28.l138
Popis:	The electrical conductivity of poly(3-alkylselenophene) is low and exhibits the range of an insulator. The band gap of poly(3-alkylselenophene) is evaluated at around 2.4 eV, which is larger than that of poly(3-alkylthiophene). The results are interpreted in terms of the decrease of the coplanary of selenophene rings due to a steric hindrance between the alkyl group and the large Se atom. Poly(3-alkylselenophene) is found to be soluble in several solvents. However, the color of the solution does not change drastically with temperature. Poly(3-dodecylselenophene) is found to be fusible at around 250°C, which is higher than the corresponding temperature for poly(3-dodecylthiophene) with the same alkyl chain length.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dd69544d72ef73ba5dba0884beff8431 https://doi.org/10.1143/jjap.28.l138 Zobrazit plný text záznamu