Exploring enzymatic degradation, reinforcement, recycling, and upcycling of poly(ester)-poly(urethane) with movable crosslinks

Liu, Jiaxiong; Ikura, Ryohei; Yamaoka, Kenji et al.

Chem, 2025, 11(2), 102327

Number of Access:998（2025-08-28 23:13 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/100602

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Title
Exploring enzymatic degradation, reinforcement, recycling, and upcycling of poly(ester)-poly(urethane) with movable crosslinks
Creator
CreatorName
Liu, Jiaxiong
NRID
1000000967565 1000000967565
ORCID
0000-0002-3850-4533 0000-0002-3850-4533
researchmap permalink
Ikura-Ryohei Ikura-Ryohei
CreatorName
Ikura, Ryohei
ORCID
0000-0001-5655-1643 0000-0001-5655-1643
researchmap permalink
yamaokak23 yamaokak23
CreatorName
Yamaoka, Kenji
NRID
1000050966447 1000050966447
researchmap permalink
a29 a29
ORCID
0000-0002-5060-0923 0000-0002-5060-0923
Scopus Author ID
57216289677 57216289677
CreatorName
Sugawara, Akihide
CreatorName
Takahashi, Yuya
CreatorName
Kure, Bunsho
CreatorName
Takenaka, Naomi
CreatorName
Park, Junsu
NRID
1000070203594 1000070203594
ORCID
0000-0002-8587-2507 0000-0002-8587-2507
researchmap permalink
read0168389 read0168389
Scopus Author ID
7102108908 7102108908
CreatorName
Uyama, Hiroshi
NRID
1000040379277 1000040379277
ORCID
0000-0002-2620-3266 0000-0002-2620-3266
researchmap permalink
ytakashima_0068747 ytakashima_0068747
Scopus Author ID
7103176267 7103176267
CreatorName
Takashima, Yoshinori
Subject
circular plastics economy
enzymatic closed-loop recycling
enzymatic degradation
enzymatic upcycling
host-guest chemistry
movable crosslinks
SDG12: Responsible consumption and production
SDG9: Industry, innovation, and infrastructure
sustainable polyurethane resources
toughening polyurethane
Description
Liu J., Ikura R., Yamaoka K., et al. Exploring enzymatic degradation, reinforcement, recycling, and upcycling of poly(ester)-poly(urethane) with movable crosslinks. Chem 11, 102327 (2025); https://doi.org/10.1016/j.chempr.2024.09.026.
Abstract
Enzymes are highly efficient, chemoselective, and sustainable biocatalysts, standing out as eco-friendly tools to advance the circular plastics economy. Herein, we explored enzymatic reactions of poly(ε-caprolactone)-poly(urethane) (PCL-PUs) in organic solvent under different reaction conditions using Novozym 435 (immobilized lipase) as the enzyme. PCL-PUs with triacetylated γ-cyclodextrin (TAcγCD)-based movable crosslinks (PCL-γCD-PU) not only exhibited excellent mechanical properties due to effective energy dissipation, but also efficient enzymatic degradation that was optimized for increases in TAcγCD content. Under reaction time control, molecular weight and mechanical properties of PCL-γCD-PU were enhanced by a novel enzymatic reinforcement strategy. Without sorting, the degraded products are versatile resources that can be enzymatically closed-loop recycled by switching reaction concentration or enzymatically upcycled into value-added polymers by mixing with selective substrates. The facile polymer structure design combined with enzymatic reactions is expected to provide a broad approach for toughening various polymeric materials and advancing their development as sustainable resources.
Publisher
Elsevier Inc.
Source Title
Chem
Volume (Issue)
11(2)
Page
102327
Date of Issued
2025-02-13
Language
English
Handle URL
https://hdl.handle.net/11094/100602
PISSN
24519308
eISSN
24519294
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1016/j.chempr.2024.09.026
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
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Version of Record
Category
学術雑誌論文 Journal Article