| abstract |
PURPOSE:An uranyl ion trapping agent comprising a specified macrocyclic hexacarboxylic acid. CONSTITUTION:A macrocyclic hexacarboxylic acid of formula I [wherein X<1>, X<3> and X<5> are -COOH, formula II (where R<1> is H, an alkyl or aromatic group), -SO<3>H, -PO<3>H, or -PO4H; X<2>, X<4> and X<6> are, in addition to the above-mentioned groups, H, an alkyl, aromatic group, -COOR<2> (where R<2> is an alkyl or aromatic group), formula III (where R<11> and R<12> are same as R<1>), -COR<1>, -CN, -SOR<2>, -SO2n, formula IV (where R<21> and R<22> are same as R<2>), -SO2R<2>, -NO2, -PO3R21R<22>, or -PO4R<21>R<22>; W is formula V (where n is 2-18), or one, in which 1-9 carbon atoms are substituted by hetero atoms, etc.]. The compound of the formula I is used as such or in the form of a high-molecular compound obtained by the reaction with an aminomethyl group-containing styrene polymer, as an uranyl ion trapping agent. |