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Synthesis of methylated cello-oligosaccharides

机译：甲基化纤维寡糖的合成

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摘要

In this chapter, we show how cello-oligosaccharide synthesis can play an important role on understanding physical properties of industrially produced cellulose derivatives. As one example, a synthetic strategy for cello-oligosaccharide derivatives related to methylcellulose (MC) is discussed in detail. The physical properties of MC are attributed to its block-like chemical structure. Thus, blockwise methylated cello-oligosaccharides were synthesized as models of the structural units of MC. An aqueous solution of the blockwise methylated cello-oligosaccharides showed higher surface activity than that of industrially produced MC. Namely, it was confirmed that the synthesized cello-oligosaccharide derivatives have surface activity superior to that of MC due to controlling the block structure of substituents along the molecular backbone. Furthermore, blockwise methylated cello-oligosaccharides self-assembled to form ellipsoidal nano particles in water. These new findings are of importance not only for the investigation on phase separation phenomenon of MC but also for the development of new applications of cello-oligosaccharide derivatives.
机译：在本章中，我们将说明纤维寡糖的合成如何在理解工业生产的纤维素衍生物的物理性质方面发挥重要作用。作为一个例子，详细讨论了与甲基纤维素（MC）有关的纤维寡糖衍生物的合成策略。 MC的物理性质归因于其块状化学结构。因此，合成了嵌段甲基化的纤维寡糖作为MC的结构单元的模型。嵌段甲基化纤维寡糖的水溶液显示出比工业生产的MC更高的表面活性。即，证实了由于控制沿着分子主链的取代基的嵌段结构，合成的纤维-寡糖衍生物具有优于MC的表面活性。此外，嵌段甲基化纤维寡糖自组装以在水中形成椭圆形纳米颗粒。这些新发现不仅对于研究MC的相分离现象具有重要意义，而且对于纤维寡糖衍生物的新应用开发也具有重要意义。

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  • 会议地点 Chicago IL(US)
  • 作者

    Hiroshi Kamitakahara; rnFumiaki Nakatsubo; rnDieter Klemm;

  • 作者单位

    Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan;

    rnGraduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan;

    rnTransfer group Polymet at Friedrich Schiller University of Jena, Technologie- und Innovationspark, Wildenbruchstrasse 15, D-07745 Jena, Germany;

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  • 正文语种 eng
  • 中图分类 有机质材料;
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