Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/70291
DC FieldValueLanguage
dc.contributor.authorHo, R.M.en_US
dc.contributor.authorChiu, C.W.en_US
dc.date1999zh_TW
dc.date.accessioned2014-06-11T05:59:37Z-
dc.date.available2014-06-11T05:59:37Z-
dc.identifier.issn1022-9760zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/70291-
dc.description.abstractMelting behavior of a series of polyether-polyester block copolymers with low ether contents was studied. Significant melting-reorganization-remelting was suggested by means of differential scanning calorimetry. The equilibrium melting temperature of the copolymers was obtained by using the Hoffman-Weeks extrapolation. It has been found that the use of the on-set melting temperature for the Hoffman-Weeks plots is less reliable than the use of the corrected peak melting temperature. Copolymerization of polyetheramides with polyesters leads to a significant melting temperature suppression for the polyester crystal. We hypothesize that the locations of the junction points between blocks can be treated as chain ends for the crystallizable polyester blocks: the polyether-polyesters grow to form extended chain-like crystals with lamellar thickness limited by the polyester block length. For comparison, the nonlinear Hoffman-Weeks treatment, recently proposed by Marand, has also been applied to examine the behavior of melting temperature depression. Although the T-m(o) obtained from nonlinear extrapolation is much higher than the T-m(o) obtained from the Hoffman-Weeks extrapolation, similar trend regarding the composition dependence of T-m(o) have been found.en_US
dc.language.isoen_USzh_TW
dc.relationJournal of Polymer Research-Taiwanen_US
dc.relation.ispartofseriesJournal of Polymer Research-Taiwan, Volume 6, Issue 2, Page(s) 79-89.en_US
dc.relation.urihttp://dx.doi.org/10.1007/s10965-006-0074-3en_US
dc.subjectpolyether-polyestersen_US
dc.subjectpolyetheramidesen_US
dc.subjectcopolymersen_US
dc.subjectequilibrium meltingen_US
dc.subjectmelting temperature depressionen_US
dc.subjectnonlinear Hoffman-Weeks extrapolationen_US
dc.subjecthard segment lengthen_US
dc.subjectpoint depressionen_US
dc.subjectpoly(butylene terephthalate)en_US
dc.subjectdiblock copolymeren_US
dc.subjectpolymer blendsen_US
dc.subjectcrystallizationen_US
dc.subjectbehavioren_US
dc.subjectpolystyreneen_US
dc.subjectscatteringen_US
dc.subjectmorphologyen_US
dc.titleMelting temperature depression for low ether content polyether-polyester block copolymers with amide linkagesen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1007/s10965-006-0074-3zh_TW
item.languageiso639-1en_US-
item.openairetypeJournal Article-
item.cerifentitytypePublications-
item.grantfulltextnone-
item.fulltextno fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
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