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 by H-1 and C-13 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.
机构:
Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 10080, Peoples R ChinaChinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R China
Han, Lijing
Han, Changyu
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Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R ChinaChinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R China
Han, Changyu
Zhang, Huiliang
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Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R ChinaChinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R China
Zhang, Huiliang
Chen, Shan
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NE Normal Univ, Coll Life Sci, Changchun 130024, Peoples R ChinaChinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R China
Chen, Shan
Dong, Lisong
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Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R ChinaChinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R China
机构:
Univ Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, JapanUniv Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
Omura, Taku
Goto, Tatsuya
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Univ Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
RIKEN, RIKEN Ctr Sustainable Resource Sci, 2-1 Hirosawa, Wako, Saitama 2510198, JapanUniv Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
Goto, Tatsuya
Maehara, Akira
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Mitsubishi Gas Chem Co Inc, Niigata Res Lab, Kita Ku, 182 Tayuhama, Niigata, Niigata 9503112, JapanUniv Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
Maehara, Akira
Kimura, Satoshi
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Univ Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, JapanUniv Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
Kimura, Satoshi
Abe, Hideki
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RIKEN, RIKEN Ctr Sustainable Resource Sci, 2-1 Hirosawa, Wako, Saitama 2510198, JapanUniv Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
Abe, Hideki
Iwata, Tadahisa
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Univ Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, JapanUniv Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
机构:
Univ Sains Malaysia, Sch Biol Sci, George Town 11800, MalaysiaUniv Sains Malaysia, Sch Biol Sci, George Town 11800, Malaysia
Vigneswari, S.
Majid, M. I. A.
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Malaysian Inst Pharmaceut & Nutraceut, Mosti, MalaysiaUniv Sains Malaysia, Sch Biol Sci, George Town 11800, Malaysia
Majid, M. I. A.
Amirul, A. A.
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Univ Sains Malaysia, Sch Biol Sci, George Town 11800, Malaysia
Malaysian Inst Pharmaceut & Nutraceut, Mosti, MalaysiaUniv Sains Malaysia, Sch Biol Sci, George Town 11800, Malaysia