Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/104993
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dc.contributor.authorKong, Jen Fong.en
dc.contributor.authorLipik, Vitali T.en
dc.contributor.authorAbadie, Marc J. M.en
dc.contributor.authorRoshan Deen, G.en
dc.contributor.authorVenkatraman, Subbu S.en
dc.date.accessioned2013-11-15T05:34:04Zen
dc.date.accessioned2019-12-06T21:44:12Z-
dc.date.available2013-11-15T05:34:04Zen
dc.date.available2019-12-06T21:44:12Z-
dc.date.copyright2012en
dc.date.issued2012en
dc.identifier.citationKong, J. F., Lipik, V., Abadie, M. J. M., Roshan Deen, G., & Venkatraman, S. S. (2012). Characterization and degradation of elastomeric four-armed star copolymers based on caprolactone and L-lactide . Journal of biomedical materials research part A, 100A(12), 3436-3445.en
dc.identifier.issn1552-4965en
dc.identifier.urihttps://hdl.handle.net/10356/104993-
dc.description.abstractAlthough biodegradable polymers have found extensive applications in medical areas, there are limited reports that show elastomeric behavior. In this work, a biodegradable, elastomeric polymer is demonstrated from a four-armed star copolymer. With a fixed middle core composition, comprising caprolactone (CL) and L-lactide (LA), an elastomer is obtained by increasing the polylactide (PLA) end block lengths to obtain sufficient end block crystallinity. This increase suppressed the middle core's crystallinity yet ensured cocrystallization of the PLA ends of individual star copolymer chains to form a three-dimensional network via physical crosslinking. Cyclic and creep test of the star copolymers showed that at least 75% of recovery was achieved. Degradation study of the copolymer showed that degradation first occurred in the caprolactone-co-lactide (CLLA) core, followed by degradation in the PLA ends. Chain scission in the middle core resulted in immediate formation of CL crystals within the core and increased crystallinity over time, in both CLLA core and PLA ends.en
dc.language.isoenen
dc.relation.ispartofseriesJournal of biomedical materials research part Aen
dc.subjectDRNTU::Engineering::Materialsen
dc.titleCharacterization and degradation of elastomeric four-armed star copolymers based on caprolactone and L-lactideen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science & Engineeringen
dc.identifier.doi10.1002/jbm.a.34277en
item.grantfulltextnone-
item.fulltextNo Fulltext-
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