Physical aging of cyclo olefin copolymer (COC)

doi:10.1023/A:1026088308671

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DC 欄位	值	語言
dc.contributor.author	Huang, WJ	en_US
dc.contributor.author	Chang, FC	en_US
dc.date.accessioned	2014-12-08T15:41:33Z	-
dc.date.available	2014-12-08T15:41:33Z	-
dc.date.issued	2003	en_US
dc.identifier.issn	1022-9760	en_US
dc.identifier.uri	http://hdl.handle.net/11536/28259	-
dc.identifier.uri	http://dx.doi.org/10.1023/A:1026088308671	en_US
dc.description.abstract	The physical aging behaviour of the cyclo olefin copolymer (COC) has been investigated in this paper by using low temperature annealing in differential scanning calorimeter (DSC) measurements. The data of recovered enthalpies was fitted by means of Petrie-Marshall (PM), Cowie-Ferguson (CF) or Kohlrausch-Williams-Watts (KWW) form equation in describing the enthalpy relaxation. We have found that the COC sample has a stretched exponential factor near 1.0 (beta = 0.98 +/- 0.02) at the annealing temperature range. The apparent activation energy (EH) of COC aging obtained by using the Petrie/Marshall (PM) analysis method is about 1521.7 +/- 150 kJ/mole. That is substantially higher than 308 50 kJ/mole for bisphenol-A polycarbonate, 407.4 kJ/mole for poly (vinyl methyl ether) and 1192 kJ/mole for polystyrene, but close to 1520 kJ/mole for polyterafluoroethylene (PTFE).	en_US
dc.language.iso	en_US	en_US
dc.subject	activation energy	en_US
dc.subject	COC	en_US
dc.subject	physical aging	en_US
dc.title	Physical aging of cyclo olefin copolymer (COC)	en_US
dc.type	Article	en_US
dc.identifier.doi	10.1023/A:1026088308671	en_US
dc.identifier.journal	JOURNAL OF POLYMER RESEARCH-TAIWAN	en_US
dc.citation.volume	10	en_US
dc.citation.issue	3	en_US
dc.citation.spage	195	en_US
dc.citation.epage	200	en_US
dc.contributor.department	應用化學系	zh_TW
dc.contributor.department	Department of Applied Chemistry	en_US
dc.identifier.wosnumber	WOS:000186610500006	-
dc.citation.woscount	5	-
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