Dielectric relaxation of the alternating terpolymers of ethylene, propylene, and carbon monoxide

Privalko, VP; Pissis, P; Polizos, G; Korskanov, VV; Privalko, EG; Dolgoshey, VI; Kramarenko, VY; Huhn, W; Hollmann, F; Rieger, B

dc.contributor.author	Privalko, VP	en
dc.contributor.author	Pissis, P	en
dc.contributor.author	Polizos, G	en
dc.contributor.author	Korskanov, VV	en
dc.contributor.author	Privalko, EG	en
dc.contributor.author	Dolgoshey, VI	en
dc.contributor.author	Kramarenko, VY	en
dc.contributor.author	Huhn, W	en
dc.contributor.author	Hollmann, F	en
dc.contributor.author	Rieger, B	en
dc.date.accessioned	2014-03-01T01:17:42Z
dc.date.available	2014-03-01T01:17:42Z
dc.date.issued	2002	en
dc.identifier.issn	0022-2348	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14633
dc.subject	Carbon Monoxide	en
dc.subject	Dielectric Relaxation	en
dc.subject.classification	Polymer Science	en
dc.subject.other	SEGMENTED POLYURETHANES	en
dc.subject.other	MOLECULAR-DYNAMICS	en
dc.subject.other	X-RAY	en
dc.subject.other	POLYMERS	en
dc.subject.other	SPECTROSCOPY	en
dc.subject.other	LIQUIDS	en
dc.subject.other	CHAIN	en
dc.subject.other	BEHAVIOR	en
dc.subject.other	WEIGHT	en
dc.title	Dielectric relaxation of the alternating terpolymers of ethylene, propylene, and carbon monoxide	en
heal.type	journalArticle	en
heal.identifier.primary	10.1081/MB-120002349	en
heal.identifier.secondary	http://dx.doi.org/10.1081/MB-120002349	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	The alternating terpolymers; of ethylene, propylene, and carbon monoxide were characterized by wide-angle x-ray scattering (WAXS), differential scanning calorimeter (DSC), thermally stimulated depolarization currents, and dielectric relaxation spectroscopy (DRS). At room temperature, the terpolymers were x-ray amorphous; however, the existence of weak endothermal effects over fairly broad temperature intervals above the glass transition suggested that they should be classified as "microcrystalline" (in a sense that the ultimate level of crystallinity lies beyond the resolution limits of ordinary WAXS instruments). The DRS data in the temperature intervals of alpha- and sub-glass relaxations were fitted quantitatively to the Havriliak-Negami equation. The characteristic parameters for the alpha-relaxation were consistent with classification of terpolymers as relatively fragile glass formers; however, their high fragility was attributed to steric constraints to the motion of chain dipoles by the residual network of microcrystals. Strong asymmetry of the dielectric subglass relaxation was regarded as additional experimental evidence for the interference of the spatial network of microcrystallites with the motion (ill this case, noncooperative) of chain segments.	en
heal.publisher	MARCEL DEKKER INC	en
heal.journalName	JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS	en
dc.identifier.doi	10.1081/MB-120002349	en
dc.identifier.isi	ISI:000174567700008	en
dc.identifier.volume	B41	en
dc.identifier.issue	1	en
dc.identifier.spage	99	en
dc.identifier.epage	116	en