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Studies of the initiation mechanism of ferric ion–hydrogen peroxide systems in graft copolymerization on cellulose
Author(s) -
Ogiwara Yoshitaka,
Ogiwara Yukie,
Kubota Hitoshi
Publication year - 1968
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.1968.070121201
Subject(s) - hydrogen peroxide , cellulose , copolymer , ferric , decomposition , chemistry , peroxide , polymer chemistry , polymerization , degree of polymerization , adsorption , inorganic chemistry , organic chemistry , polymer
The decomposition of hydrogen peroxide by ferric ion adsorbed on cellulose, the lowering of the degree of polymerization of cellulose, and the graft copolymerization in the systems containing methyl methacrylate were studied. As the amount of ferric ion adsorbed on cellulose and the concentration of hydrogen peroxide became higher, the amount of decomposition of hydrogen peroxide and the number of scissions of cellulose chains with higher rates at the initial stage of reaction were both observed to increase. It was recognized that the graft copolymerization was hardly initiated, while such initial reactions were proceeding. Assuming that the hydrogen peroxide decomposed with a higher rate was indifferent to the initiation reaction, a certain relationship was found between the amount of ferric ion adsorbed on cellulose ànd the initiation efficiency of hydrogen peroxide in graft copolymerization.