Effect of the grafting degree on the properties of copolymers based on polyacrylic acid and methylcellulose

  • Zhansaya Nurpeisova al-Farabi Kazakh National University
  • Dariya Kasymova al-Farabi Kazakh National University
  • Rauash Mangazbaeva al-Farabi Kazakh National University
  • Erengaiyp Shaikhutdinov al-Farabi Kazakh National University
  • Grigoriy Mun al-Farabi Kazakh National University
  • Vitaliy Khutoryanskiy University of Reading
DOI: https://doi.org/10.15328/cb587
Keywords: methylcellulose, polyacrylic acid, graft copolymer, main-chain, grafted chain, intramolecular interactions

Abstract

In this work, by potentiometric titration, the dissociation of the grafted chains of polyacrylic acid in copolymer composition was studied. An increase in the content of units of acrylic acid (AA) in the copolymer leads to a decrease in the values of dissociation constants, that is, the acidic properties are weaken. It was shown that the extension of the grafted copolymer chains in MC-g-PAA as well as the enhancement of the interaction between the basic and graft chains of the copolymer result in the formation of intra- and intermolecular complexes by a system of hydrogen bonds. Also, by viscometry, the effect of the temperature and pH on the rheological properties as well as phase transitions in aqueous solutions of graft copolymers based on polyacrylic acid and methyl cellulose (MC-g-PAA) have been investigated. It was demonstrated that the content of the grafted polyacrylic acid affects physicochemical characteristics of the grafted copolymer. Grafting of AA onto a polysaccharide chain allows creation of a pH-dependent system, resulting in an increase in the solution viscosity of the copolymer with increasing pH.

References

1   Gulten G, Shokat S (2013) Cellulose graft copolymers: synthesis, properties, and applications. In: Polysaccaride based graft copolymers. Part 2. Springer-Verlag Berlin Heidelberg, Germany. P.15-57. http://dx.doi.org/10.1007/978-3-642-36566-9

2   Nurpeissova ZhA, Mangazbaeva RA, Shaikhutdinov EM, Khutoryanskiy VV (2013) Chemical Bulletin of Kazakh National University 2:27-33. (In Russian). http://dx.doi.org/10.15328/chemb_2013_227-33

3   Gavrilin MV (2001) Chemical Pharmaceutical Journal [Himicheskiy pharmacevticheskiy zhurnal] 35:33-37. (In Russian)

4 Nurkeeva ZS, Mun GA, Khutoryanskiy VV, Mangazbaeva RA (2000) Polym Int 49:867-870. http://dx.doi.org/10.1002/1097-0126(200008)49:8<867::AID-PI472>3.0.CO;2-O

5   Nurkeeva ZS, Mun GA, Khutoryanskiy VV (2003) Macromol Biosci 3:283-295. http://dx.doi.org/ 10.1002/mabi.200390037

6   Khutoryanskiy VV, Cascone MG, Lazzeri L, Nurkeeva ZS, Mun GA, Mangazbaeva RA (2003) Polym Int 52:62-67. http://dx.doi.org 10.1002/pi.1004

7   Mangazbaeva RA, Omarova MM, Khutoryanskiy VV (2001) Chemical Bulletin of Kazakh National University 2:258-259. (In Russian)

Published
2015-08-26
How to Cite
Nurpeisova, Z., Kasymova, D., Mangazbaeva, R., Shaikhutdinov, E., Mun, G., & Khutoryanskiy, V. (2015). Effect of the grafting degree on the properties of copolymers based on polyacrylic acid and methylcellulose. Chemical Bulletin of Kazakh National University, 78(2), 42-47. https://doi.org/https://doi.org/10.15328/cb587
Issue
Vol 78 No 2 (2015): Chemical Bulletin of Kazakh National University
Section
Organic and Polymers Chemistry
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