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Effect of metallic ions in photo‐induced graft copolymerization onto cellulose
Author(s) -
Kubota Hitoshi,
Ogiwara Yoshitaka
Publication year - 1972
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.1972.070160206
Subject(s) - cellulose , copolymer , metal , metal ions in aqueous solution , aqueous solution , ion , adsorption , methyl methacrylate , polymer chemistry , salt (chemistry) , materials science , irradiation , chemistry , photochemistry , inorganic chemistry , organic chemistry , polymer , physics , nuclear physics
In photo‐induced graft copolymerization of methyl methacrylate onto cellulose, the effect of metallic ions as sensitizer was investigated. Some metallic ions were effective in their adsorbed states and accelerated the formation of grafts in the order Fe 2+ > Ag + > Fe 3+ . However, Cu 2+ acted negatively, and little effect was observed for Co 2+ , Ni 2+ , Mn 2+ , Zn 2+ , and Cr 3+ . In the systems in which aqueous metallic salt solutions were added, the formation of grafts was generally depressed, but Fe 3+ was an exception. The effect of metallic ions on the scission reaction of cellulose main chains did not necessarily agree with the effect on the formation of grafts. This is attributed to the varied interaction between cellulose and the different active species produced by irradiation, depending on the type of metallic ions used.