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Studies on the electronic transport and optical properties of some new chelate modified polysulfones in thin films
Author(s) -
Rusu G. I.,
Airinei A.,
Baban C.,
Rusu G. G.,
Mardare Diana,
Rusu Mihaela
Publication year - 2005
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.22445
Subject(s) - materials science , polymer , seebeck coefficient , activation energy , condensation polymer , thin film , polymer chemistry , band gap , electrical resistivity and conductivity , aqueous solution , conductive polymer , conductivity , sodium hydroxide , chemical engineering , analytical chemistry (journal) , chemistry , composite material , organic chemistry , nanotechnology , thermal conductivity , engineering , electrical engineering , optoelectronics
The studied polymers (chelate modified polysulfones) have been prepared by the polycondensation reaction between chloro‐end‐capped polysulfones and bis(2,4‐dihydroxybenzaldehyde)Cu 2+ in the dymethyl sulfoxide/dichlormethane system, in the presence of an aqueous sodium hydroxide solution. The temperature dependence of electrical conductivity and Seebeck coefficient of the respective polymers was investigated using thin‐film samples, deposited from chloroform solutions onto glass substrates. The polymers under study have typical semiconducting properties. The values of some characteristic parameters of the investigated polymers (for example, activation energy of electrical conduction, ratio of carrier mobilities, etc.) have been determined. The nature of the electrical conduction mechanism is discussed. The values of the optical bandgap energy are determined from the absorption spectra. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 99: 100–106, 2006