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Mechanical Properties of Comonomer-Compositionally Fractionated Poly[(3-hydroxybutyrate)-co-(3-mercaptopropionate)] with Low 3-Mercaptopropionate Unit Content

✍ Scribed by Fang Yu; Tungalag Dong; Bo Zhu; Kouichirou Tajima; Kouji Yazawa; Yoshio Inoue

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
206 KB
Volume
7
Category
Article
ISSN
1616-5187

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✦ Synopsis

Abstract

The mechanical properties, such as Young's modulus, yield strength, and the elongation at breakage, were investigated for several sulfur‐containing biopolymers P(3HB‐co‐3MP). A series of P(3HB‐co‐3MP) samples with 3MP unit content ranging from 6.6 to 39.1 mol‐% was biosynthesized by fermentation using the PHA‐synthesizing bacteria Cupriavidus necator. For comparison, the bacterially synthesized P(3HB) and P(3HB‐co‐3HP) with the 3HP unit content ranging from 13.1 to 21.1 mol‐% were also investigated. It was found that the sulfur‐containing P(3HB‐co‐3MP) is much more durable to stretching. Notably, P(3HB‐co‐3MP) with the 3MP unit content of only 6.6 mol‐% was found to show excellent mechanical properties.

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