CRCU

Chemical Research in Chinese Universities ›› 1998, Vol. 14 ›› Issue (2): 194-198.

• Articles • Previous Articles     Next Articles

Syntheses of Cellulose-Type Polysaccharide by Means of Ring-Opening Copolymerization of Anhydroriboses ABRP and AIRP

WU Cheng-pei1, PAN Cai-yuan1, Toshiyuki-Uryu2   

  1. 1. Department of Polymer Science & Engineering, University of Science & Technology of China, Hefei 230026;
    2. Institute of Industrial Science, University of Tokyo, Tokyo 106, Japan
  • Received:1997-01-06 Online:1998-04-24 Published:2011-08-17

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Abstract: Two kinds of 1,4-anhydroribose derivatives, 1,4-anhydro 2,3-O-benzylidene-α-D-ribopyranose （ABRP） and 1,4-anhydro 2,3-O-isopropylidene α D ribopyranose （AIRP） were prepared from D-ribose. The ring-opening copolymerizations of ABRP and AIRP in various feed ratios were carried out with SbCl5 and BF3OEt2 as catalyst at low temperatures. The copolymer structure was characterized by means of 1H,13C NMR spectroscopy and specific rotation. When SbCl5 was used as catalyst, the copolymer obtained had completely 1,4-β-pyranosidic structure, i.e., cellulose type structure. However, when BF3OEt2 was used as catalyst, the copolymer had a mixed structure of furanosidic and pyranosidic units.

Key words: 1,4-anhydroribose derivative, ringopening copolymerization, cellulosetype polysaccharide