Cited by 130biodegradable polymer synthesis and propertiesEnzyme Catalysis and ImmobilizationPolymer crystallization and properties

Lipase-Catalyzed Degradation of Polyesters in Organic Solvents. A New Methodology of Polymer Recycling Using Enzyme as Catalyst

Kobayashi, Shiro, Uyama, Hiroshi, Takamoto, Tetsufumi·2000·Biomacromolecules

Abstract

Enzymatic hydrolytic degradation of aliphatic polyesters in organic solvents has been examined. The degradation of poly(epsilon-caprolactone) took place using Candida antarctica lipase as catalyst in toluene at 60 degrees C to give oligomers with molecular weight of less than 500. The degradation behavior catalyzed by lipase was quite different than an acid-catalyzed degradation (random bond cleavage of polymer). After the removal of the solvent from the reaction mixture, the residual oligomer was polymerized in the presence of the same catalyst of lipase. These data provide a basic concept that the degradation-polymerization could be controlled by presence or absence of the solvent, providing a new methodology of plastics recycling.

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Crossref · 10.1021/bm990007c

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20 of 20 references verified0 citation errors · 0 not checkable

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  • After solvent evaporation, the oligomers could be repolymerized in bulk using the same lipase catalyst.

    “After solvent evaporation, these oligomers could be repolymerized in bulk using the same lipase catalyst.”

    From Catalysis as an Enabling Science for Sustainable Polymers (2018) · cites this paper as [515]

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Authors
Kobayashi, S., Uyama, H., & Takamoto, T.
Affiliations
Kyoto University (JP)
Venue
Biomacromolecules
Published
2000-02-18
Volume
1
Issue
1
Pages
3-5
ISSN
  • 1525-7797 (ISSN-L)
  • 1526-4602
OpenAlex
W2063015943
Cited by
130
References
20
Citations by year
2026: 8 · 2025: 4 · 2024: 1 · 2023: 3 · 2022: 4 · 2021: 7 · 2020: 6 · 2019: 5 · 2018: 7 · 2017: 6 · 2016: 7 · 2015: 4 · 2014: 3 · 2013: 2 · 2012: 4
FWCI
6.10
Type
journal article
Language
en
Open access
closed
Locations
  • Biomacromolecules (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Enzyme Catalysis and Immobilization
  • Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
Keywords
aliphatic polyesters, polycaprolactone, Candida antarctica lipase, enzymatic hydrolysis, organic solvents, toluene, polymer recycling, oligomerization, acid-catalyzed degradation, plastic recycling
MeSH terms
Candida, Catalysis, Conservation of Natural Resources, Lipase, Polyesters, Solvents, Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization

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