Transformation of Biodegradable Polyesters into Cyclic Oligomers under Continuous Flow Using an Enzyme-Packed Column

The enzymatic degradation of typical chemically synthesized biodegradable plastics, such as poly(butylene adipate) and poly(ε‐caprolactone), to a repolymerizable cyclic oligomer under continuous flow using an enzyme column was studied, directed towards green chemical recycling. It was confirmed that...

Full description

Saved in:
Bibliographic Details
Published in:Macromolecular bioscience 2004-10, Vol.4 (10), p.936-942
Main Authors: Osanai, Yasushi, Toshima, Kazunobu, Matsumura, Shuichi
Format: Article
Language:English
Subjects:
Applied sciences
Biocompatible Materials - chemistry
biodegradable polyesters
Biodegradation, Environmental
Candida - enzymology
Candida antarctica
chemical recycling
Chromatography, High Pressure Liquid
cyclic oligomers
degradation
Dimerization
enzymes
Exact sciences and technology
Lipase - chemistry
Magnetic Resonance Spectroscopy
Models, Chemical
Plastics - chemistry
Polyesters - chemistry
Polymer industry, paints, wood
Polymers - chemistry
Radioimmunoassay
Technology of polymers
Temperature
Time Factors
Waste treatment
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The enzymatic degradation of typical chemically synthesized biodegradable plastics, such as poly(butylene adipate) and poly(ε‐caprolactone), to a repolymerizable cyclic oligomer under continuous flow using an enzyme column was studied, directed towards green chemical recycling. It was confirmed that both polymers were quantitatively transformed into the corresponding cyclic oligomers by passage through the column packed with immobilized lipase from Candida antarctica (Novozym 435) at 40 °C using a toluene solution. Compared to the batch treatment in a flask, a short reaction time and a low reaction temperature occurred for complete transformations of the polyesters by continuous flow through the enzyme column. The degradation activity of the enzyme column was maintained for at least six months at 40 °C. Conceptual scheme of the continuous degradation equipment using the enzyme column.
ISSN:1616-5187
1616-5195
DOI:10.1002/mabi.200400046