Synthesis of bio-based poly(diethylene furanoate)-block-polylactide copolymers with UV blocking properties

Molnár, Judit Rebeka; Hsu, Yu I.; Uyama, Hiroshi

doi:https://doi.org/10.1016/j.polymdegradstab.2025.111342

Synthesis of bio-based poly(diethylene furanoate)-block-polylactide copolymers with UV blocking properties

Molnár, Judit Rebeka; Hsu, Yu I.; Uyama, Hiroshi

Polymer Degradation and Stability, 2025, 238, 111342

アクセス数:211件（2025-08-15 07:42 集計）

固定URL: https://hdl.handle.net/11094/101391

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タイトル	Synthesis of bio-based poly(diethylene furanoate)-block-polylactide copolymers with UV blocking properties
著者	著者名 Molnár, Judit Rebeka
	NRID 1000010757678 1000010757678 ORCID 0000-0002-4533-7200 0000-0002-4533-7200 researchmap permalink yuihsu yuihsu Scopus Author ID 55389981500 55389981500 著者名 Hsu, Yu I.
	NRID 1000070203594 1000070203594 ORCID 0000-0002-8587-2507 0000-0002-8587-2507 researchmap permalink read0168389 read0168389 Scopus Author ID 7102108908 7102108908 著者名 Uyama, Hiroshi
キーワード等	Biopolymer
	Polylactic acid
	Poly(diethylene 2,5-furanoate)
	2,5-furandicarboxylic acid
	multiblock copolymer
	UV blocking
	Ring-opening polymerization
内容	Molnár J.R., Hsu Y.I., Uyama H.. Synthesis of bio-based poly(diethylene furanoate)-block-polylactide copolymers with UV blocking properties. Polymer Degradation and Stability 238, 111342 (2025); https://doi.org/10.1016/j.polymdegradstab.2025.111342.
抄録	The transition to a circular economy requires the development of bio-based polymers with enhanced functionality to compete with conventional oil-sourced materials. In this study, a bio-based furandicarboxylic acid-containing polyester, poly(diethylene furanoate) (PDEF) was directly copolymerized with polylactide (PLA) for the first time, through the polycondensation of dimethyl furan-2,5-dicarboxylate (MFDC) and diethylene glycol (DEG), used as an initiator for the ring-opening polymerization (ROP) of lactide, followed by chain extension reaction with hexamethylene diisocyanate (HDI) to obtain poly(diethylene furanoate)-block-polylactide (PDEF-b-PLA) alternating multiblock copolymers. The PDEF synthesized with different reaction times exhibited an average glass transition temperature (Tg) of 33.8 °C. The copolymers had PLA segment lengths of 1000 and 300 g/mol after ROP maintaining an amorphous structure with a Tg of 34.5 and 33.3 °C respectively, suggesting easy processability. Thermal stability of the copolymers was enhanced, indicated by increased decomposition temperatures and residual weight compared to neat PLA. PDEF displayed elastomer-like behavior while the copolymerization resulted in an intermediate behavior between PDEF and semi-crystalline PLA, with a high Young's modulus of 1.7 and 1.4 GPa, a balanced tensile stress at yield of 24.3 and 28.9 MPa and a significantly increased elongation at break, by 700–1100 % compared to neat PLA. All PDEF-containing samples demonstrated excellent UV-blocking ability due to the furan moiety, effectively blocking UV radiation below 300 nm while maintaining transparency in the visible range. These bio-based PDEF-b-PLA copolymers offer a sustainable alternative for applications such as food packaging and coatings, where thermal stability, mechanical resilience and UV protection are essential.
出版者	Elsevier Ltd
収録物名	Polymer Degradation and Stability
巻(号)	238
ページ	111342
刊行年月	2025-04-01
言語	英語
ハンドルURL	https://hdl.handle.net/11094/101391
PISSN	01413910
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1016/j.polymdegradstab.2025.111342
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Polymer Degradation and Stability. 2025, 238, p. 111342
DC.title	Synthesis of bio-based poly(diethylene furanoate)-block-polylactide copolymers with UV blocking properties
DC.creator	Molnár, Judit Rebeka
	Hsu, Yu I.
	Uyama, Hiroshi
DC.publisher	Elsevier Ltd
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2025-04-01
DC.identifier	https://doi.org/10.1016/j.polymdegradstab.2025.111342
DC.subject	Biopolymer
	Polylactic acid
	Poly(diethylene 2,5-furanoate)
	2,5-furandicarboxylic acid
	multiblock copolymer
	UV blocking
	Ring-opening polymerization
DC.description	Molnár J.R., Hsu Y.I., Uyama H.. Synthesis of bio-based poly(diethylene furanoate)-block-polylactide copolymers with UV blocking properties. Polymer Degradation and Stability 238, 111342 (2025); https://doi.org/10.1016/j.polymdegradstab.2025.111342.
DCTERMS.abstract	The transition to a circular economy requires the development of bio-based polymers with enhanced functionality to compete with conventional oil-sourced materials. In this study, a bio-based furandicarboxylic acid-containing polyester, poly(diethylene furanoate) (PDEF) was directly copolymerized with polylactide (PLA) for the first time, through the polycondensation of dimethyl furan-2,5-dicarboxylate (MFDC) and diethylene glycol (DEG), used as an initiator for the ring-opening polymerization (ROP) of lactide, followed by chain extension reaction with hexamethylene diisocyanate (HDI) to obtain poly(diethylene furanoate)-block-polylactide (PDEF-b-PLA) alternating multiblock copolymers. The PDEF synthesized with different reaction times exhibited an average glass transition temperature (Tg) of 33.8 °C. The copolymers had PLA segment lengths of 1000 and 300 g/mol after ROP maintaining an amorphous structure with a Tg of 34.5 and 33.3 °C respectively, suggesting easy processability. Thermal stability of the copolymers was enhanced, indicated by increased decomposition temperatures and residual weight compared to neat PLA. PDEF displayed elastomer-like behavior while the copolymerization resulted in an intermediate behavior between PDEF and semi-crystalline PLA, with a high Young's modulus of 1.7 and 1.4 GPa, a balanced tensile stress at yield of 24.3 and 28.9 MPa and a significantly increased elongation at break, by 700–1100 % compared to neat PLA. All PDEF-containing samples demonstrated excellent UV-blocking ability due to the furan moiety, effectively blocking UV radiation below 300 nm while maintaining transparency in the visible range. These bio-based PDEF-b-PLA copolymers offer a sustainable alternative for applications such as food packaging and coatings, where thermal stability, mechanical resilience and UV protection are essential.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	101391
citation_title	Synthesis of bio-based poly(diethylene furanoate)-block-polylactide copolymers with UV blocking properties
citation_author	Molnár, Judit Rebeka
	Hsu, Yu I.
	Uyama, Hiroshi
citation_publisher	Elsevier Ltd
citation_language	英語
citation_date	2025-04-01
citation_journal_title	Polymer Degradation and Stability
citation_volume	238
citation_firstpage	111342
citation_doi	https://doi.org/10.1016/j.polymdegradstab.2025.111342
citation_public_url	https://hdl.handle.net/11094/101391

Synthesis of bio-based poly(diethylene furanoate)-block-polylactide copolymers with UV blocking properties

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