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Enzymatic Synthesis and Chemical Recycling of Poly(carbonate-urethane)

✍ Scribed by Yasuyuki Soeda; Kazunobu Toshima; Shuichi Matsumura

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
184 KB
Volume
4
Category
Article
ISSN
1616-5187

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✦ Synopsis

Abstract

Summary: Novel enzymatically recyclable poly(carbonate‐urethane) consisting of a diurethane moiety as a hard segment and a carbonate linkage as an enzymatically cleavable unit was prepared by the polycondensation of biodegradable diurethanediol and diethyl carbonate using lipase. The produced poly(carbonate‐urethane) was readily transformed by lipase into the corresponding cyclic oligomers which were more easily repolymerized by lipase to produce a higher molecular weight poly(carbonate‐urethane) than that of the parent poly(carbonate‐urethane).
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