SAXS and DSC studies of the crystallization and melting phenomena of poly(ε-caprolactone)

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dc.contributor.authorCatherine Ngila J.
dc.contributor.authorDdamba W.A.A.
dc.date.accessioned2011-05-15T15:57:13Z
dc.date.available2011-05-15T15:57:13Z
dc.date.issued2001
dc.description.abstractThe relationships between the crystallization temperature, Tc, the crystal thickness, dc and the melting peak temperature, Tm of poly(ε-caprolactone)have been determined by carrying out time- and temperature-dependent small angle x-ray scattering experiments. A two-step melting has been suggested, resulting in the occurrence of two well defined independent boundary lines, indicating the transformation from melt into the partially crystalline state. For crystallization temperatures lower than 40°C, during heating, more pronounced peak shifts are observed with the final melting of the crystallites having the same thickness of dc ≈ 7 nm. In this region, it is evident that crystals have relatively good stabilities, since they have fairly uniform thickness. At higher temperatures, above 40°C, Tm increases with Tc, together with the thickness. The transformation of the melt into the partially crystalline state depicts a two-step process, beginning with the formation of a well defined initial structure with lower order, which is subsequently stabilized.
dc.description.versionConference Paper
dc.identifier.citationMacromolecular Symposia
dc.identifier.citation165
dc.identifier.issn10221360
dc.identifier.other10.1002/1521-3900(200103)165:1<99::AID-MASY99>3.0.CO;2-S
dc.identifier.urihttp://hdl.handle.net/10019.1/10281
dc.subjectpolycaprolactone
dc.subjectconference paper
dc.subjectcrystal structure
dc.subjectcrystallization
dc.subjectmathematical analysis
dc.subjectmelting point
dc.subjectradiation scattering
dc.subjecttemperature dependence
dc.subjectX ray analysis
dc.titleSAXS and DSC studies of the crystallization and melting phenomena of poly(ε-caprolactone)
dc.typeConference Paper
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