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Updated: Feb 11, 2026

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Published on: July 10, 2021
Synthesis of Hyperbranched Aminopolysaccharides
Jun-Ichi Kadokawa1, Mitsuru Sato1, Masa Karasu1
1Department of Materials Science and Engineering, Faculty of Engineering, Yamagata University, Yonezawa, Yamagata 992-0038 (Japan), Fax: (+81) 238-26-3413.
Abstract:
Sugar dihydroozaxole monomers with two free hydroxyl groups undergo acid-catalyzed polymerization to hyperbranched aminopolysaccharides [Eq. (a)]. Their molecular weights were determined by the light-scattering method to be between 2.3×105 and 7.6×105 . The degree of branching determined by 1 H NMR spectroscopy after reaction with [iPr2 Si(Cl)]2 O is close to the ideal value. Ts=MeC6 H4 SO2 , CSA=10-camphorsulfonic acid.
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