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Effect of wavelength region on photo‐induced graft copolymerization onto cellulose
Author(s) -
Kubota Hitoshi,
Ogiwara Yoshitaka
Publication year - 1971
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.1971.070151114
Subject(s) - copolymer , methyl methacrylate , cellulose , polymer chemistry , depolymerization , polymerization , materials science , grafting , degree of polymerization , photochemistry , polymer , chemistry , composite material , organic chemistry
The effect of wavelength region of ultraviolet light was examined on the unsensitized photo‐induced graft copolymerization of methyl methacrylate onto cellulose. When the quartz tube system was compared to the glass tube system, there was no induction period of copolymerization, the rate of reaction was a little larger, the homopolymerization of methyl methacrylate was increased causing interference with graft copolymerization, and the depolymerization of grafts and the scission reaction of cellulose chains occurred easily. The number of grafts was hardly improved by varying the reaction conditions, and the copolymers obtained generally exhibited low per cent grafting and contained grafts with lower degree of polymerization.