Qualitative composition determination of macromolecular complexes of Cu(II), Zn(II), Co(II), Mn(II) ions with copolymer of acrylamide and sodium acrylate

  • Elena K. Fomina Research Institute for Physical Chemical problems of the Belarusian State University, Leningradskaya street, 14, 220006, Minsk
  • Galina V. Butovskaya Research Institute for Physical Chemical problems of the Belarusian State University, Leningradskaya street, 14, 220006, Minsk
  • Leonid P. Krul Belarusian State University, Nezavisimosti avenue, 4, 220030, Minsk
  • Evgeny V. Grinyuk Belarusian State University, Nezavisimosti avenue, 4, 220030, Minsk
  • Oleg V. Yakimenko Belarusian State University, Nezavisimosti avenue, 4, 220030, Minsk

Abstract

The composition of macromolecular complexes formed at a room temperature by mixing aqueous solutions of acrylamide and sodium acrylate copolymer, which was obtained by alkaline hydrolysis of polyacrylonitrile fiber, with Cu(II), Zn(II), Co(II), and Mn(II) sulfates have been shown to depend upon the molar ratio of the copolymer carboxylate group and the metal ion in the solution. The type of the complexes formed between the metal ions studied with the copolymer carboxylate group has been identified by the Fourier-IR spectroscopy. Сonditions have been found of preferable formation of bidentate and/or monodentate complexes as well as bridging (or pseudo-bridging) bonds. The possibility of nitrogen atoms of the amide group participation in the formation of a coordination bond with Cu(II) ions has been shown. Changing hydration degree of the amide group of the copolymer has been suggested to take place during the formation of bidentate insoluble hydrophobic complexes between metal ion and the copolymer carboxylate  group (at molar ratios of COO– – Me(II) of 1 : 1 and 2 : 1).

Author Biographies

Elena K. Fomina, Research Institute for Physical Chemical problems of the Belarusian State University, Leningradskaya street, 14, 220006, Minsk

senior researcher at the laboratory of structural and chemical modification of polymers

Galina V. Butovskaya, Research Institute for Physical Chemical problems of the Belarusian State University, Leningradskaya street, 14, 220006, Minsk

PhD (chemistry), docent; leading researcher at the laboratory of structural and chemical modification of polymers

Leonid P. Krul, Belarusian State University, Nezavisimosti avenue, 4, 220030, Minsk

doctor of science (chemistry), full professor; head of the department of macromolecular chemistry, faculty of chemistry

Evgeny V. Grinyuk, Belarusian State University, Nezavisimosti avenue, 4, 220030, Minsk

PhD (chemistry), docent; associate professor at the department of radiation chemistry and chemical-pharmaceutical technologies, faculty of chemistry

Oleg V. Yakimenko, Belarusian State University, Nezavisimosti avenue, 4, 220030, Minsk

junior researcher at the laboratory of chemical-analytical systems at the department of analytical chemistry, faculty of chemistry

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Published
2017-12-01
Keywords: macromolecular metal complexes, copolymer of acrylamide with sodium acrylate, Cu(II); Zn(II); Mn(II); Co(II) ions
How to Cite
Fomina, E. K., Butovskaya, G. V., Krul, L. P., Grinyuk, E. V., & Yakimenko, O. V. (2017). Qualitative composition determination of macromolecular complexes of Cu(II), Zn(II), Co(II), Mn(II) ions with copolymer of acrylamide and sodium acrylate. Journal of the Belarusian State University. Chemistry, 2, 94-109. Retrieved from https://journals.bsu.by/index.php/chemistry/article/view/1172
Issue
No 2 (2017): Journal of the Belarusian State University. Chemistry
Section
Original Articles

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