Copolymers were synthesized by the condensation of 2,4-dihydroxybenzoic acid woith urea and formaldehyde in the presence of 2 M HCI/HzS04 as a catalyst and varying molar proportions of reactants. The copolymers were characterized by elemental analyses, IR spectral studies, number average molecular weight determination, viscosity measurements and thermogravimetry. Ion exchange properties have been studied employing the batch equilibration method. The copolymer showed a higher selectivity for UO(2+2 and Fe3+ ions than for Cu2+, Ni2+, Co2+ and Zn2+ions.
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References
1.
[1] L. D. Pennington and M. B. Williams, Ind. Eng. Chem., 51, 759-759 (1959).
2.
[2] L. I. Aristov and V. V. Kostantinov, Izv. Tomsk. Politekh. Inst., 111, 104-104 (1961).
3.
[3] K. Ashida, i. Chem. High Polym. (Jpn), 10, 27-27 (1953).
4.
[4] R. M. Joshi and M. M. Patel, Proc. Ind. Acad. Sci. (Chem. Sci.), 91, 351-351 (1982).
5.
[5] R. M. Joshi and M. M. Patel, i. Macromol. Sci. Chem., A19, 705-705 (1983).
6.
[6] M. M. Patel and R. M. Joshi, Ind. i. Chem., 22A, 390-390 (1983).
7.
[7] S. K. Chatterjee and V. B. Agrawal, i. Polym. Sci., A9, 3225-3225 (1971).
8.
[8] R. Manavalan and M. M. Patel, Maktromol. Chem., 184, 717-717 (1983).
9.
[9] S. K. Chatterjee, i. Polym. Sci. Al, 8, 1299-1299 (1970).
10.
[10] H. B. Pancholi and M. M. Patel, High Performance Polymers, 3, 33-33 (1991).
11.
[11] M. L. Huggin,.. Am. Chem. Soc., 64, 2716-2716 (1942).
12.
[12] E. O. Kraemer, Ind. Eng. Chem., 30, 1200-1200 (1938).
13.
[13] S. H. Maron and R. B. Reznik, i. Polym. Sci. A2, 7, 309-309 (1969).
14.
[14] K. Nakanishi, Infrared Absorption Spectroscopy, 2nd Ed, Nankodo, Tokyo (1964).
15.
[15] A. Bjerrum, G. Schwarzenbach and L. G. Sillen, Stability constant of Complex Molecules, The Chemical Society, London UK (1958).
16.
[16] F. A. Cotton and G. Wilkinson, Advanced Inorganic Chemistry, 3rd Ed, Wiley Interscience, New York (1972).
17.
[17] S. L. Davydova and N. A. Plate, Coord. Chem. Rev., 16, 195-195 (1975).
