Lipase-catalyzed transformation of poly(epsilon-caprolactone) into cyclic dicaprolactone

Authors
Ebata, H Toshima, K Matsumura, S
Citation
H. Ebata et al., Lipase-catalyzed transformation of poly(epsilon-caprolactone) into cyclic dicaprolactone, BIOMACROMOL, 1(4), 2000, pp. 511-514
Citations number
15
Categorie Soggetti
Biochemistry & Biophysics","Organic Chemistry/Polymer Science
Journal title
BIOMACROMOLECULES
ISSN journal
15257797 → ACNP
Volume
1
Issue
4
Year of publication
2000
Pages
511 - 514
Database
ISI
SICI code
1525-7797(200024)1:4<511:LTOPIC>2.0.ZU;2-W
Abstract
The enzymatic degradation and polymerization using an enzyme were carried o ut with respect to the establishment of a sustainable chemical recycling sy stem for poly(epsilon -caprolactone) (PCL) which is a typical biodegradable synthetic plastic. The enzymatic transformation of PCL having an M-n of 11 0 000 using Candida antarctica lipase (lipase CA) in water-containing tolue ne at 40 degreesC afforded the corresponding cyclic dicaprolactone (DCL, 1, 8-dioxacyclotetradecane-2,9-dione) in a yield of up to 97%. Thus the obtain ed DCL readily polymerized again using both the fresh and recovered lipase CAs.