論文 - 詳細
| RRC ID | 65082 |
|---|---|
| 著者 | Kobayashi K, Kimura S, Togawa E, Wada M. |
| タイトル | Thermal expansion behavior of hydrate paramylon in the low-temperature region. |
| ジャーナル | Carbohydr Polym |
| Abstract |
The thermal expansion behavior of hydrate paramylon between 100 and 300K has been investigated using synchrotron X-ray powder diffraction. The X-ray diffraction profile at 300K showed a typical pattern of the hydrate triple helical (1→3)-β-d-glucan with a hexagonal unit cell (a=15.782Å and c=18.580Å). On cooling, the hydrate paramylon had converted to a "low-temperature phase" around 270K. On passing through the phase transition, the a-axis and c-axis values decreased and increased, respectively, and the low-temperature phase at 100K exhibited a hexagonal unit cell (a=15.586Å and c=18.619Å). The phase transition took place reversibly. Below the transition point, both the a-axis and c-axis values decreased linearly. The thermal expansion coefficients are: α(a)=1.50×10(-5)K(-1), α(c)=0.33×10(-5)K(-1), and β=3.08×10(-5)K(-1). |
| 巻・号 | 91(2) |
| ページ | 543-8 |
| 公開日 | 2013-1-16 |
| DOI | 10.1016/j.carbpol.2012.08.067 |
| PII | S0144-8617(12)00841-7 |
| PMID | 23121943 |
| MeSH | Cold Temperature Glucans / chemistry* Nuclear Magnetic Resonance, Biomolecular Phase Transition X-Ray Diffraction |
| IF | 7.182 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 各媒体での言及数の合計 | 0 |
| リソース情報 | |
| 藻類 | NIES-48 |