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Structure and properties of poly(3-hydroxybutyrate-co-4-hydroxybutyrate) produced by Alcaligenes latus

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Summary

Random copolymers of 3-hydroxybutyrate (3HB) and 4-hydroxybutyrate (4HB) with a wide range of compositions varying from 0 to 83 mol% 4HB were produced by Alcaligenes latus from the mixed carbon substrates of 3-hydroxybutyric and 4-hydroxybutyric acids. The structure and physical properties of P(3HB-co-4HB) were characterized by1H and13C NMR spectroscopy, gel-permeation chromatography, and differential scanning calorimetry. The isothermal radial growth rates of spherulites of P(3HB-co-4HB) were much slower than the rate of P(3HB) homopolymer. The enzymatic degradation rates of P(3HB-co-4HB) films by a PHB depolymerase were strongly influenced by the copolymer composition.

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Authors and Affiliations

  1. Polymer Chemistry Laboratory, The Institute of Physical and Chemical Research (RIKEN), Hirosawa, Wako-shi, 351-01, Saitama, Japan

    Choong-Kyung Kang & Yoshiharu Doi

  2. Akebono R & D Center, 5-4-71, Higasi, Hanyuu-shi, 348, Saitama, Japan

    Satoshi Kusaka

Authors
  1. Choong-Kyung Kang
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  2. Satoshi Kusaka
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  3. Yoshiharu Doi
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Kang, CK., Kusaka, S. & Doi, Y. Structure and properties of poly(3-hydroxybutyrate-co-4-hydroxybutyrate) produced by Alcaligenes latus . Biotechnol Lett 17, 583–588 (1995). https://doi.org/10.1007/BF00129382

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  • DOI: https://doi.org/10.1007/BF00129382

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