Synthesis and Characterization of Poly(Butylene Sebacate-Co-Terephthalate) Copolyesters with Pentaerythritol as Branching Agent

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dc.contributor.authorJang, Hyunhoen
dc.contributor.authorKwon, Sangwooen
dc.contributor.authorKim, Sun Jongen
dc.contributor.authorKim, Young-Tecken
dc.contributor.authorPark, Su-ilen
dc.date.accessioned2024-02-01T14:32:59Zen
dc.date.available2024-02-01T14:32:59Zen
dc.date.issued2023-12-19en
dc.date.updated2024-01-10T14:49:59Zen
dc.description.abstractPoly(butylene sebacate-co-terephthalate) (PBSeT) copolyesters are prepared by melt polymerization via two-step transesterification and polycondensation using pentaerythritol (PE) as a branching agent. The effects of the incorporated PE on its chemical, thermal, mechanical, and degradation properties, along with the rheological properties of its melt, are investigated. The highest molecular weight and intrinsic viscosity along with the lowest melt flow index were achieved at a PE content of 0.2 mol%, with minimal reduction in the tensile strength and the highest tear strength. The addition of PE did not significantly influence the thermal behavior and stability of the PBSeT copolyesters; however, the elongation at break decreased with increasing PE content. The sample with 0.2 mol% PE exhibited a higher storage modulus and loss modulus as well as a lower loss angle tangent than the other samples, indicating improved melt elasticity. The incorporation of more than 0.2 mol% PE enhanced the enzymatic degradation of copolyesters. In summary, including within 0.2 mol%, PE effectively improved both the processability-related characteristics and degradation properties of PBSeT copolyesters, suggesting their potential suitability for use in agricultural and packaging materials.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationJang, H.; Kwon, S.; Kim, S.J.; Kim, Y.-T.; Park, S.-I. Synthesis and Characterization of Poly(Butylene Sebacate-Co-Terephthalate) Copolyesters with Pentaerythritol as Branching Agent. Int. J. Mol. Sci. 2023, 25, 55.en
dc.identifier.doihttps://doi.org/10.3390/ijms25010055en
dc.identifier.urihttps://hdl.handle.net/10919/117803en
dc.language.isoenen
dc.publisherMDPIen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectPBSeTen
dc.subjectbiodegradableen
dc.subjectaliphatic–aromatic random copolyesteren
dc.subjectbranchingen
dc.subjectmelt flowen
dc.subjectenzymatic degradation testen
dc.titleSynthesis and Characterization of Poly(Butylene Sebacate-Co-Terephthalate) Copolyesters with Pentaerythritol as Branching Agenten
dc.title.serialInternational Journal of Molecular Scienceen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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