Open Access Received:   |   Accepted:   |   Published:

OBTAINING AND PROPERTIES GRAFT COPOLYMERS OF DIALDEHYDE CARBOXYMETHYLCELLULOSE/SERICINE

Goyibnazarov I.Sh., Yuldoshov Sh.A., Yarmatov S.S., Sarimsakov A.A.

Institute of Polymer Chemistry and Physics, Tashkent, Uzbekistan

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Abstract. In this article, research work on obtaining graft copolymers based on dialdehyde carboxymethylcellulose (DCMC) with a molecular weight of 141 kDa, oxidation degree of 82% and sericin with a molecular weight of 180 kDa and study their physics-chemical properties. The functional groups in the obtained DCMC/sericin graft copolymers were analyzed by infrared (IR) and nuclear magnetic resonance (NMR) spectroscopy methods. It was observed that the sorption and physical-mechanical properties of DCMC-sericin graft copolymers increased compared to the initial samples. It was found that DCMC, sericin, DCMC-sericin graft copolymers absorbed water vapor in the amount of 8, 9, 13 mmol/g, respectively. Based on the sorption properties, the value of Gibbs energy was calculated to study the polymer-solvent effect.

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Key words. dialdehyde carboxymethyl cellulose, sericine, imin bond, graft copolymers, infrared and nuclear magnetic resonance spectroscopy, physics-chemical properties.


DOI: http://uzpolymerjournal.com/articles/article.php?id=250104

*Corresponding author: Goyibnazarov I.Sh., Institute of Polymer Chemistry and Physics, Tashkent, Uzbekistan

Citation: Goyibnazarov I.Sh., Yuldoshov Sh.A., Yarmatov S.S., Sarimsakov A.A., OBTAINING AND PROPERTIES GRAFT COPOLYMERS OF DIALDEHYDE CARBOXYMETHYLCELLULOSE/SERICINE. Uzbekistan Journal of Polymers, Vol. 4(1) 2025: pp.39-44. DOI: http://uzpolymerjournal.com/articles/article.php?id=250104

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