, Volume 22, Issue 4, pp 2305–2310 | Cite as

Effects of side groups on the entanglement network of cellulosic polysaccharides

  • Jun-ichi Horinaka
  • Yuhei Urabayashi
  • Toshikazu Takigawa
Original Paper


The transient entanglement networks of cellulosic polysaccharides in concentrated solutions were characterized by the molecular weight between entanglements (M e) using dynamic viscoelasticity measurements. From the concentration dependence of M e, M e for the cellulosic polysaccharides in the molten state (M e,melt) was estimated as the material constant reflecting the chain characteristics. The values of M e,melt were compared among three cellulosic polysaccharides: cellulose, methylcellulose, and hydroxypropyl cellulose. Methylcellulose and hydroxypropyl cellulose were employed as cellulose derivatives having small and large side groups, respectively. It appeared that hydroxypropyl cellulose had significantly larger M e,melt compared with cellulose and methyl cellulose. However, the numbers of repeating glucose-ring units between entanglements were very close to each other among the three polysaccharides.


Entanglement network Cellulosic polysaccharide Side group Concentrated solution Molecular weight between entanglements 


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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • Jun-ichi Horinaka
    • 1
  • Yuhei Urabayashi
    • 1
  • Toshikazu Takigawa
    • 1
  1. 1.Department of Material Chemistry, Graduate School of EngineeringKyoto UniversityNishikyo, KyotoJapan

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