THE EFFECTS OF THE PROPORTION OF BIPHENYL-ALCL3-CUCL2 POLYMERIZATION SYSTEM ON STRUCTURE AND ELECTRICAL-CONDUCTIVITY OF INSOLUBLE POLYPHENYLENES

SIMITZIS, J; ZOUMBOULAKIS, L; STAMBOULIS, A; HINRICHSEN, G

dc.contributor.author	SIMITZIS, J	en
dc.contributor.author	ZOUMBOULAKIS, L	en
dc.contributor.author	STAMBOULIS, A	en
dc.contributor.author	HINRICHSEN, G	en
dc.date.accessioned	2014-03-01T01:42:16Z
dc.date.available	2014-03-01T01:42:16Z
dc.date.issued	1993	en
dc.identifier.issn	0003-3146	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/23740
dc.subject.classification	Polymer Science	en
dc.subject.other	POLY(PARA-PHENYLENE)	en
dc.title	THE EFFECTS OF THE PROPORTION OF BIPHENYL-ALCL3-CUCL2 POLYMERIZATION SYSTEM ON STRUCTURE AND ELECTRICAL-CONDUCTIVITY OF INSOLUBLE POLYPHENYLENES	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1993	en
heal.abstract	Polyphenylenes insoluble in chlorobenzene were prepared by cationic oxidative polymerization of biphenyl with aluminum trichloride as catalyst and cupric chloride as oxidizer. The fraction insoluble in chlorobenzene was doped in a solution of FeCl3 in acetonitrile. The alternating electrical conductivity, the X-ray diffractograms and the FTIR-spectra of undoped and doped polyphenylenes were measured. The undoped material was observed to be an insulator. Only one sample exhibited different behavior which was similar to the doped material, that was found to be semiconducting. Both undoped and doped polyphenylenes were found to have a monoclinic crystallographic unit cell. For the preparation of polyphenylenes with maximum electrical conductivity after doping, the stoichiometric proportion of biphenyl/CuCl2 = 1/2 has to be chosen. Similarly, the catalyst proportion biphenyl/AlCl3 has to be either 1/0.75 or 1/1.5. Under these conditions the undoped polyphenylenes had a ratio of para/meta substitution of about 1, the degree of crystallinity was below 60% and the unit cell volume was quite low. The results were discussed according to the reactions taken place during polymerization.	en
heal.publisher	HUTHIG & WEPF VERLAG	en
heal.journalName	ANGEWANDTE MAKROMOLEKULARE CHEMIE	en
dc.identifier.isi	ISI:A1993MP29800016	en
dc.identifier.volume	213	en
dc.identifier.spage	181	en
dc.identifier.epage	196	en