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dc.creatorTang, C. Y.
dc.creatorChen, D. Z.
dc.creatorTsui, C. P.
dc.creatorUskoković, Petar
dc.creatorYu, Peter H. F.
dc.creatorLeung, Mason C. P.
dc.date.accessioned2021-03-10T10:32:14Z
dc.date.available2021-03-10T10:32:14Z
dc.date.issued2006
dc.identifier.issn0021-8995
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/918
dc.description.abstractThe knowledge of biomedical implants ranging from drug delivery devices to tissue engineering and based on bioresorbable polymer composites is increasing, but the study of the crystallization kinetics of these kinds of composites is seldom a concern. The focus of our experimental research was the nonisothermal-crystallization behavior of poly(3-hydroxybutyrate) (PHB)/hydroxyapatite (HA) composites, which was monitored by means of differential scanning calorimetry at different cooling rates. Various macrokinetic models were applied to describe the process of nonisothermal crystallization. The results showed that the modified Avrami model and Mo's approach could describe the nonisothermal crystallization of the composites very well, but the Ozawa analysis alone was thought to be rather inapplicable. The values of the half-time and kinetic crystallizability showed that the crystallization rate increased with increasing cooling rates for both PHB and the composites. The HA particles served as additional nucleation sites, and low levels of HA resulted in dramatic increases in the crystallization rate with respect to pure PHB; however, high HA contents ( gt 20 wt %) clearly retarded the growth process. The activation energy for nonisothermal crystallization was evaluated with the Kissinger method and was found to vary with the incorporation of HA.en
dc.publisherWiley, Hoboken
dc.rightsrestrictedAccess
dc.sourceJournal of Applied Polymer Science
dc.subjectbiopolymersen
dc.subjectcompositesen
dc.subjectcrystallizationen
dc.titleNonisothermal melt-crystallization kinetics of hydroxyapatite-filled poly(3-hydroxybutyrate) compositesen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage5395
dc.citation.issue6
dc.citation.other102(6): 5388-5395
dc.citation.rankM22
dc.citation.spage5388
dc.citation.volume102
dc.identifier.doi10.1002/app.25016
dc.identifier.rcubconv_2745
dc.identifier.scopus2-s2.0-33751348299
dc.identifier.wos000241593800039
dc.type.versionpublishedVersion


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