✦ LIBER ✦

Enzymatic degradation of aliphatic polyesters copolymerized with various diamines

✍ Scribed by Minoru Nagata

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 266 KB
Volume: 17
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.1996.030170812

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✦ Synopsis

Abstract

Poly(hexamethylene adipate) copolymers with 10–40 mol‐% (in feed) of aliphatic diamines of various methylene chain lengths were prepared by melt polycondensation. In vitro degradation was performed in buffer solution at 37°C with a lipase and was evaluated by weight loss of the films. The weight loss increased greatly by the copolymerization and showed a maximum at 10 mol‐% of comonomer content. Degradation also increased in a zig‐zag fashion with decreasing number of methylene chains in the diamine comonomers. Both effects on the enzymatic degradation are discussed.

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