Nonisothermal Crystallization Kinetics of Biodegradable Random Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and Block One

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概要

• 論文の詳細を見る

• The kinetics of nonisothermal crystallization in a novel microbial synthesis of a biodegradable block copolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate), P(HB-co-HV), in which the mole fractions of 3HV units are 7 and 10 mol%, were studied by differential scanning calorimetry (DSC). The kinetics of the block copolymer under nonisothermal crystallization conditions was analyzed by Ozawa’s equation using three different methods. The comparison of nonisothermal crystallization of the block P(HB-co-HV) copolymer, homopolymer polyhydroxybutyrate, PHB, and random P(HB-co-HV) copolymer, in which the mole fractions of 3HV units are 6 and 12 mol%, was performed. It was found that the n values of the block P(HB-co-7% HV) and block P(HB-co-10% HV) are the same as that of PHB, and have been found to be close to 3. The n values of the random P(HB-co-6% HV) and random P(HB-co-12% HV) have been found to be close to 1. It was obvious that the nonisothermal crystallization rate of block polymers was faster than that of random polymers.

• 社団法人 化学工学会の論文
• 2003-06-01

著者

• SHIOYA SUTEAKI

  Department of Biotechnology, Graduate School of Engineering, Osaka University

• Shimizu Hiroshi

  Department of Bioinformatic Engineering, Graduate School of Information Science and Technology, Osak

• Seki Shuhei

  Department Of Beam Materials Science The Institute Of Scientific And Industrial Research Osaka Unive

• CHANPRATEEP SUCHADA

  Department of Biotechnology, Graduate School of Engineering, Osaka University

• KIKUYA KENSUKE

  Department of Biotechnology, Graduate School of Engineering, Osaka University

• TAGAWA SEIICHI

  Department of Beam Materials Science, The Institute of Scientific and Industrial Research, Osaka Uni

• Tagawa Seiichi

  Department Of Beam Materials Science The Institute Of Scientific And Industrial Research Osaka Unive

• Shimizu Hiroshi

  Department Of Bioinformatic Engineering Graduate School Of Information Science And Technology Osaka

• Shioya Suteaki

  Department Of Biotechnology Faculty Of Engineering Osaka University

• Kikuya Kensuke

  Department Of Biotechnology Graduate School Of Engineering Osaka University

• Tagawa Seiichi

  Department Of Beam Materials Science And Technology The Institute Of Science And Indusrial Research

• Chanprateep Suchada

  Department Of Biotechnology Graduate School Of Engineering Osaka University

• Shimizu Hiroshi

  Department Of Animal Science Faculty Of Agriculture Hokkaido University

• SHIMIZU HIROSHI

  Department of Anatomy, School of Medicine, Tokushima University

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