低温における天然高分子デンプンの テラヘルツ帯赤外・ラマン分光によるボゾンピーク研究

DOI Web Site

書誌事項

タイトル別名
  • Investigation into Low Temperature Behavior of Boson Peak of Natural Polymer Starch by Terahertz Time-Domain and Low-Frequency Raman Spectroscopies
  • テイオン ニ オケル テンネン コウブンシ デンプン ノ テラヘルツタイ セキガイ ・ ラマン ブンコウ ニ ヨル ボゾンピーク ケンキュウ

この論文をさがす

抄録

The boson peak (BP) dynamics of semicrystalline starch was investigated using terahertz time-domain spectroscopy (THz-TDS) and low-frequency Raman spectroscopy. The BP of starch was observed around 1.0 THz in the α(ν)/ν2 spectrum obtained by THz-TDS, where α(ν) is absorption coefficient. Comparing with the previous study of glucose glass, we found that the BP frequency of starch was about 10 % lower than that of the glucose glass, and the value of α(ν)/ν2 was about 30 % smaller than the glucose glass. The results suggest that the origin of absorption around BP frequency is the dipole moment of the hydroxyl group and the α(ν) is proportional to the number of hydroxyl groups per unit volume.

収録刊行物

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ