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Recovery of uranium from seawater. X. Pore structure and uranium adsorption of macroreticular chelating resin containing amidoxime groups
Author(s) -
Egawa Hiroaki,
aka Takamasa,
Abe Syouichirou,
Nakayama Morio
Publication year - 1992
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.1992.070450510
Subject(s) - acrylonitrile , adsorption , uranium , gel permeation chromatography , copolymer , chemistry , polymerization , aqueous solution , chelating resin , seawater , polymer chemistry , divinylbenzene , nuclear chemistry , materials science , organic chemistry , styrene , polymer , geology , metallurgy , ion , oceanography , metal ions in aqueous solution
Abstract Eight types of amidoxime–type resin (RNH) were derived from macroreticular acrylonitrile—divinylbenzene copolymer beads, which were synthesized by varying the amount of polymerization initiator. Although these RNH are similar in chemical properties and physical pore structure, they exhibited different adsorption abilities for uranium. The porous structure of RNH in swollen state was analyzed by gel permeation chromatography in aqueous medium. The calibration curves yielded useful information on the pore structure of RNH in the swollen state and it was recognized that the pore structure in the swollen state is important for the improvement of the adsorption rate.