Thermal and Infrared Spectroscopic Studies on Hydrogen-Bonding Interaction between Poly(3-hydroxybutyrate) and Catechin
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- Li Jianchun
- Department of Biomolecular Engineering, Tokyo Institute of Technology
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- Zhu Bo
- Department of Biomolecular Engineering, Tokyo Institute of Technology
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- He Yong
- Department of Biomolecular Engineering, Tokyo Institute of Technology
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- Inoue Yoshio
- Department of Biomolecular Engineering, Tokyo Institute of Technology
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The effects of catechin on the properties of bacterially synthesized isotactic poly[(R)-3-hydroxybutyrate] (i-PHB) and chemosynthesized highly-syndiotactic poly[(R,S)-3-hydroxybutyrate] (s-PHB) were investigated by differential scanning calorimetry and Fourier transform infrared (FT-IR). In both PHB/catechin blend systems, the composition-dependent single glass transition temperature was observed. By using FT-IR, the formation of intermolecular hydrogen bonds was found between the carbonyl of PHB and the hydroxyl of catechin. The strength of intermolecular hydrogen bonds of s-PHB/catechin blends, i-PHB /catechin blends and pure catechin is in this order, i.e., s-PHB/catechin blends < i-PHB/catechin blends < pure catechin. The crystallization of either i-PHB or s-PHB was found to be restrained by the existence of catechin, and both i-PHB and s-PHB are miscible with catechin in the amorphous phase due to the intermolecular hydrogen-bonding. The effect of different stereochemical structures of i-PHB and s-PHB on the PHB-catechin interaction has been discussed.
収録刊行物
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- Polymer Journal
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Polymer Journal 35 (4), 384-392, 2003
The Society of Polymer Science, Japan
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詳細情報 詳細情報について
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- CRID
- 1390001206289070208
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- NII論文ID
- 130004769187
- 80015856291
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- NII書誌ID
- AA00777013
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- COI
- 1:CAS:528:DC%2BD3sXjtlyhs70%3D
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- ISSN
- 13490540
- 00323896
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- NDL書誌ID
- 6510817
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
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- 抄録ライセンスフラグ
- 使用不可