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Effect of ultrasonic irradiation on ceric‐salt‐initiated grafting of methyl methacrylate onto regenerated cellulose film
Author(s) -
Kondo Takashi,
Kubota Hitoshi,
Katakai Ryoichi
Publication year - 1999
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/(sici)1097-4628(19990110)71:2<251::aid-app8>3.0.co;2-k
Subject(s) - grafting , irradiation , materials science , methyl methacrylate , polymer chemistry , scanning electron microscope , attenuated total reflection , ultrasonic sensor , cellulose , nuclear chemistry , chemical engineering , composite material , infrared spectroscopy , chemistry , polymerization , polymer , organic chemistry , physics , nuclear physics , acoustics , engineering
Effect of ultrasonic irradiation on ceric salt (Ce 4+ )‐initiated grafting of methyl methacrylate (MMA) on regenerated cellulose film (thickness = 20 μm) was investigated under an air atmosphere in water solvent at 60°C. The grafting system with the ultrasonic irradiation was characterized by higher percentage of grafting and graft efficiency than the system without the irradiation. Reaction of cellulose with Ce 4+ was also accelerated by the ultrasonic irradiation. No accelerating effect of grafting due to the ultrasonic irradiation was observed for the system under reduced pressure of 5 torr. The effect of the ultrasonic irradiation on the average molecular weight of MMA‐grafted chains was also studied. Moreover, the surface layer of the resulting grafted films was examined by attenuated total reflection–infrared (ATR–IR) measurement and scanning electron microscopy (SEM) observation. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 71: 251–258, 1999