21. 超音波によるセルロースの分解

DOI

書誌事項

タイトル別名
  • 21. Ultrasonic degradation of cellulose in solutions

抄録

Ultrasonic degradation of many polymers in solutions has been well investigated by many worker. As cellulose does not dissolvein water and dissolve in a few solvents, little study on ultrasonic degradation of cellulose in solutions has been repoeted. Ultrasonic degradation of cellulose is expected to give oligomers, which are valuable reagents in the biological field. In this work, we examined the effect of ultrasonic irradiation on cellulose solutions. Cellulose (Avicel-PH101) was dissolved in 8wt% lithium Chloride (LiCl)/dimethylacetamide(DMAc) solvent and 8wt% LiCl/N-methyl-2-pyrrolidone (NMP). The concentration of cellulose was 0.1 wt%. Ultrasonic homogenizer (BLANSON SONIFIRE 450D) was used. The ultrasonic frequency was 20kHz and sonication was carried at 25℃. The viscosity of cellulose solution after sonication was measured by ubbelohde capillary viscometer. Specific viscosity of cellulose solution decreased with sonicatiori time. The decrease of viscosity indicates that cellulose is degradated by sonication.

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390001206051178112
  • NII論文ID
    110009710160
  • DOI
    10.20577/pamjss.10.0_68
  • ISSN
    24241512
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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