Superior sequence-controlled poly(L-lactide)-based bioplastic with tunable seawater biodegradation

He, Manjie; Hsu, Yu I.; Uyama, Hiroshi

doi:https://doi.org/10.1016/j.jhazmat.2024.134819

Superior sequence-controlled poly(L-lactide)-based bioplastic with tunable seawater biodegradation

He, Manjie; Hsu, Yu I.; Uyama, Hiroshi

Journal of Hazardous Materials, 2024, 474, 134819

アクセス数:439件（2025-07-17 12:40 集計）

固定URL: https://hdl.handle.net/11094/97652

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タイトル	Superior sequence-controlled poly(L-lactide)-based bioplastic with tunable seawater biodegradation
著者	著者名 He, Manjie
	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 researchmap permalink read0168389 read0168389 Scopus Author ID 7102108908 7102108908 ORCID 0000-0002-8587-2507 0000-0002-8587-2507 著者名 Uyama, Hiroshi
キーワード等	BOD analysis
	Degradation mechanism
	PLA-based bioplastics
	Tunable seawater biodegradability
内容	He M., Hsu Y.I., Uyama H.. Superior sequence-controlled poly(L-lactide)-based bioplastic with tunable seawater biodegradation. Journal of Hazardous Materials 474, 134819 (2024); https://doi.org/10.1016/j.jhazmat.2024.134819.
抄録	Developing superior-performance marine-biodegradable plastics remains a critical challenge in mitigating marine plastic pollution. Commercially available biodegradable polymers, such as poly(L-lactide) (PLA), undergo slow degradation in complex marine environments. This study introduces an innovative bioplastic design that employs a facile ring-opening and coupling reaction to incorporate hydrophilic polyethylene glycol (PEG) into PLA, yielding PEG-PLA copolymers with either sequence-controlled alternating or random structures. These materials exhibit exceptional toughness in both wet and dry states, with an elongation at break of 1446.8% in the wet state. Specifically, PEG4kPLA2k copolymer biodegraded rapidly in proteinase K enzymatic solutions and had a significant weight loss of 71.5% after 28 d in seawater. The degradation primarily affects the PLA segments within the PEG-PLA copolymer, as evidenced by structural changes confirmed through comprehensive characterization techniques. The seawater biodegradability, in line with the Organization for Economic Cooperation and Development 306 Marine biodegradation test guideline, reached 72.63%, verified by quantitative biochemical oxygen demand analysis, demonstrating rapid chain scission in marine environments. The capacity of PEG-PLA bioplastic to withstand DI water and rapidly biodegrade in seawater makes it a promising candidate for preventing marine plastic pollution.
出版者	Elsevier B.V.
収録物名	Journal of Hazardous Materials
巻(号)	474
ページ	134819
刊行年月	2024-08-05
言語	英語
ハンドルURL	https://hdl.handle.net/11094/97652
PISSN	03043894
eISSN	18733336
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1016/j.jhazmat.2024.134819
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
DCTERMS.bibliographicCitation	Journal of Hazardous Materials. 2024, 474, p. 134819
DC.title	Superior sequence-controlled poly(L-lactide)-based bioplastic with tunable seawater biodegradation
DC.creator	He, Manjie
	Hsu, Yu I.
	Uyama, Hiroshi
DC.publisher	Elsevier B.V.
DC.language' scheme='DCTERMS.RFC1766	英語
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2024-08-05
DC.identifier	https://doi.org/10.1016/j.jhazmat.2024.134819
DC.subject	BOD analysis
	Degradation mechanism
	PLA-based bioplastics
	Tunable seawater biodegradability
DC.description	He M., Hsu Y.I., Uyama H.. Superior sequence-controlled poly(L-lactide)-based bioplastic with tunable seawater biodegradation. Journal of Hazardous Materials 474, 134819 (2024); https://doi.org/10.1016/j.jhazmat.2024.134819.
DCTERMS.abstract	Developing superior-performance marine-biodegradable plastics remains a critical challenge in mitigating marine plastic pollution. Commercially available biodegradable polymers, such as poly(L-lactide) (PLA), undergo slow degradation in complex marine environments. This study introduces an innovative bioplastic design that employs a facile ring-opening and coupling reaction to incorporate hydrophilic polyethylene glycol (PEG) into PLA, yielding PEG-PLA copolymers with either sequence-controlled alternating or random structures. These materials exhibit exceptional toughness in both wet and dry states, with an elongation at break of 1446.8% in the wet state. Specifically, PEG4kPLA2k copolymer biodegraded rapidly in proteinase K enzymatic solutions and had a significant weight loss of 71.5% after 28 d in seawater. The degradation primarily affects the PLA segments within the PEG-PLA copolymer, as evidenced by structural changes confirmed through comprehensive characterization techniques. The seawater biodegradability, in line with the Organization for Economic Cooperation and Development 306 Marine biodegradation test guideline, reached 72.63%, verified by quantitative biochemical oxygen demand analysis, demonstrating rapid chain scission in marine environments. The capacity of PEG-PLA bioplastic to withstand DI water and rapidly biodegrade in seawater makes it a promising candidate for preventing marine plastic pollution.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	97652
citation_title	Superior sequence-controlled poly(L-lactide)-based bioplastic with tunable seawater biodegradation
citation_author	He, Manjie
	Hsu, Yu I.
	Uyama, Hiroshi
citation_publisher	Elsevier B.V.
citation_language	英語
citation_date	2024-08-05
citation_journal_title	Journal of Hazardous Materials
citation_volume	474
citation_firstpage	134819
citation_doi	https://doi.org/10.1016/j.jhazmat.2024.134819
citation_public_url	https://hdl.handle.net/11094/97652

Superior sequence-controlled poly(L-lactide)-based bioplastic with tunable seawater biodegradation

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