CORRELATION BETWEEN STRUCTURE AND ELECTRICAL-CONDUCTIVITY OF SOLUBLE POLYPHENYLENES

SIMITZIS, J; TZEVELEKIS, D; STAMBOULIS, A; HINRICHSEN, G

dc.contributor.author	SIMITZIS, J	en
dc.contributor.author	TZEVELEKIS, D	en
dc.contributor.author	STAMBOULIS, A	en
dc.contributor.author	HINRICHSEN, G	en
dc.date.accessioned	2014-03-01T01:42:03Z
dc.date.available	2014-03-01T01:42:03Z
dc.date.issued	1993	en
dc.identifier.issn	0323-7648	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/23693
dc.subject.classification	Polymer Science	en
dc.subject.other	PARA-TERPHENYL	en
dc.subject.other	BIPHENYL	en
dc.title	CORRELATION BETWEEN STRUCTURE AND ELECTRICAL-CONDUCTIVITY OF SOLUBLE POLYPHENYLENES	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1993	en
heal.abstract	Polyphenylenes were prepared by using biphenyl-AlCl3-CuCl2 according to cationic oxidative polymerization. The chlorobenzene soluble fraction was doped with 10% (w/v) solution of FeCl3, in acetonitrile. The alternating electrical conductivity, X-ray diffractograms and the FTIR-spectra of both undoped and doped polyphenylenes were measured. The proportion of the components used for the preparation of polyphenylenes strongly influences their structure as well as their conductive properties. The undoped polyphenylenes were found to be insulators, but most of them became semiconductors after doping. The increase of the alternating electrical conductivity sigma'(resulting from the real part of the admittance-vector) of the doped polyphenylenes has been explained considering the factors that influence the polyphenylenes structure: the high ratio of para/meta, the presence of both amorphous and crystalline regions, and the presence of polynuclear structures. On the other hand, the presence of aliphatic structures interrupts the conjugation system, leading to lower sigma' values.	en
heal.publisher	VCH PUBLISHERS INC	en
heal.journalName	ACTA POLYMERICA	en
dc.identifier.isi	ISI:A1993MN72800006	en
dc.identifier.volume	44	en
dc.identifier.issue	6	en
dc.identifier.spage	294	en
dc.identifier.epage	301	en