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Free‐radical polymerization of a reducing vinyl sugar ester in dimethylformamide and water
Author(s) -
Kitagawa Masaru,
Takegami Shinsuke,
Tokiwa Yutaka
Publication year - 1998
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(19980301)19:3<155::aid-marc155>3.0.co;2-w
Subject(s) - polymerization , polymer , sugar , dimethylformamide , polymer chemistry , solvent , radical polymerization , chemistry , organic chemistry
To develop a new synthetic polymer containing sugar branches, radical polymerization of the reducing vinyl sugar ester 6‐ O ‐vinyladipoyl‐ D ‐glucose ( 1 ) was performed in an organic solvent or in water. The polymers obtained with several azoinitiators in dimethylformamide (DMF) showed comparatively low average molecular weight ( M̄ n ≈ 4500). In contrast, the use of a redox initiator (FeSO 4 and H 2 O 2 ) in water gave polymers of higher average molecular weight ( M̄ n ≈ 33000) in higher yield (90%), followed by crosslinking at high conversions.