Interpolymer complexes based on N-isopropylacrylamide copolymers and polyacrylic acid

  • R. K. Rakhmetullayeva Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University
  • G. A. Mun Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University
  • E. M. Shaikhutdinov Turysov Institute of geology and oil gas business, Satpayev Kazakh National Technical University
  • U. Nakan Turysov Institute of geology and oil gas business, Satpayev Kazakh National Technical University
  • Zh. K. Bagitova Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University

Abstract

Interpolymer complexes based on N-isopropylacrylamide and 2-hydroxyethylacrylate copolymers (NIPAAm-co-HEA) and polyacrylic acid were investigated by turbidimetric method. The influence of the molecular mass of polyacid, the copolymer composition and the ionic strength of the solution on the critical pH of complexformation was shown. Phase transition behavior of interpolymer complexes in aqueous solutions based on poly(NIPAAm-co-HEA) (for three different compositions) and PAA was investigated. It was revealed that the temperature at which phase transition occurs was dependent on the initial monomer mixture of poly(NIPAAm-co-HEA) and the composition of interpolymer complexes.

References

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Published
2013-06-20
How to Cite
RAKHMETULLAYEVA, R. K. et al. Interpolymer complexes based on N-isopropylacrylamide copolymers and polyacrylic acid. International Journal of Biology and Chemistry, [S.l.], v. 5, n. 1, p. 70-75, june 2013. ISSN 2409-370X. Available at: <http://ijbch.kaznu.kz/index.php/kaznu/article/view/83>. Date accessed: 22 nov. 2017.
Section
Chemistry

Keywords

N-isopropylacrylamide (NIPAAm); interpolymer complexes; thermosensitive copolymer; 2-hydroxyethylacrylate (HEA); polyacrylic acid