Premium
Comparison of Fe 2+ H 2 O 2 and Fe 3+ H 2 O 2 initiation systems in graft copolymerization of cellulosic materials
Author(s) -
Ogiwara Yoshitaka,
Kubota Hitoshi
Publication year - 1969
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.1969.070130803
Subject(s) - ferrous , copolymer , hydrogen peroxide , decomposition , cellulose , ferric , chemistry , inorganic chemistry , peroxide , metal ions in aqueous solution , ion , metal , polymer chemistry , organic chemistry , polymer
Studies were carried out on decomposition of hydrogen peroxide by ferrous and ferric ions adsorbed on cellulosic materials (SP, SCP), scission of the cellulose chain and formation of grafts by graft copolymerization. As a result, it was found that the activity of ferrous ion is always higher than that of ferric ion, but there exists a common relation between the amount of decomposition of hydrogen peroxide and the number of grafts for all cellulose samples and kinds of metallic ions, and it was inferred that essentially, copolymerization takes place by the same mechanism irrespective of the kind of metallic ions. Consequently, it can be considered that the difference in degree of activity between ferrous ion and ferric ion is due to the difference in the decomposition mechanism of hydrogen peroxide by these metallic ions and it is assumed that the high activity of ferrous ion in graft copolymerization is due to the high hydrogen peroxide decomposition effect.