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Preparation of water‐soluble pullulans bearing pendant C 60 and their aqueous solubility
Author(s) -
Okamura Haruyuki,
Miyazono Kouki,
Minoda Masahiko,
Miyamoto Takeaki
Publication year - 1999
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/(sici)1521-3927(19990201)20:2<41::aid-marc41>3.0.co;2-o
Subject(s) - moiety , solubility , aqueous solution , aureobasidium pullulans , fullerene , azide , chemistry , nuclear magnetic resonance spectroscopy , organic chemistry , materials science , polymer chemistry , fermentation
Water‐soluble fullerene‐bearing pullulans were successfully prepared by the addition reaction of azide‐substituted pullulans with fullerene C 60 . The chemical structure of the products was characterized by IR, UV, and NMR spectroscopy. It was found that the saturation solubility of the C 60 moiety strongly depends on the degree of substitution (DS) of the sample, indicating that an optimum DS value of the C 60 moiety exists for its aqueous solubility.