核磁気共鳴の高分子への応用

• 三宅 彰

  静岡大学文理学部

書誌事項

タイトル別名

• Applications of Nuclear Magnetic Resonance to Polymers
• I. Temperature Dependence of the Second Moment of Absorption Line
• 第1報 吸収線2次能率の温度変化

抄録

The apparent inconsistency of the pronounced temperature dependence of the observed second moment of resonance line with the essential constancy of its theoretical value given by Anderson and Kubo-Tomita is solved by noting the fact, that the observed moment is not such a complete one as the theory predicts, because the observed one is always obtained through cutting off the long tails of absorption line, and its behavior is similar to the motional narrowing of the line width when the temperature changes.The approximate way of Gutowsky-Pake for estimating the second moment when the nuclei are under axial rotations is examined, and its validity is shown to be confined to the case where the correlation time due to the rotation is much shorter than the time scale corresponding to square root of the rigid second moment value.

収録刊行物

• 高分子化學

  高分子化學 16 (165), 40-44, 1959

  公益社団法人 高分子学会

詳細情報

• CRID: 1390001206520247936
• NII論文ID: 130004032035
• DOI: 10.1295/koron1944.16.40
• ISSN: 18848079
• ISSN: 00232556
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可