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Synthesis, characterization and properties of cellulose‐grafted glycine derivatives
Author(s) -
Guo Ming,
Wang Huan,
Sun Liping,
Li Yanjun
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.40929
Subject(s) - thermogravimetric analysis , differential scanning calorimetry , cellulose , thermal stability , fourier transform infrared spectroscopy , schiff base , polymer chemistry , materials science , chemical modification , sodium periodate , nuclear chemistry , chemistry , chemical engineering , organic chemistry , engineering , thermodynamics , physics
Novel Schiff base cellulose derivatives were successfully prepared by a bridge‐coupling reaction from dialdehyde cellulose (DAC), which was obtained by the selective oxidation of sodium periodate to cotton fibers, in which the glycine (Gly) was bonded onto the DAC chains by a Schiff base reaction with p ‐nitrobenzaldehyde as a bridge. The structures of the graft copolymer (DAC‐ g ‐Gly) were characterized by Fourier transform infrared spectroscopy, X‐ray diffraction, solid‐state NMR, and scanning electronic microscopy. The thermodynamic properties were analyzed by thermogravimetric analysis and differential scanning calorimetry, and the biodegradability was also tested by the microbial degradation and the active sludge method. The results indicate that Gly was connected to DAC by chemical bonding, which changed the thermal stability, and that DAC‐ g ‐Gly could be biodegraded significantly. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40929.