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Abstract <p>Grafted copolymers of chitosan and acrylic acid with a three-dimensional structure were synthesized by a radical mechanism in the presence of potassium persulfate as an initiator. Calorimetric studies have shown that the rate of copolymerization does not depend on the concentration of chitosan. It has been shown that in the presence of a polysaccharide, the enthalpy of polymerization of acrylic acid increases in absolute value, which is probably related to a decrease in the reactivity of the monomer while simultaneously increasing the reactivity of the corresponding radical. Water absorption studies have shown that the obtained materials have superabsorbent properties and can be recommended for use as environmentally friendly water-absorbing materials.</p>

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Synthesis of Graft Copolymers of Chitosan with Acrylic Acid and Their Use as Superabsorbents

  • 期刊论文

  • 发表日期：

    2026年4月1日

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  • V. O. Kudyshkin,
  • M. Yu. Zaremski,
  • Z. M. Abrarova,
  • N. I. Bozorov,
  • M. M. Usmanova

摘要

Abstract

Grafted copolymers of chitosan and acrylic acid with a three-dimensional structure were synthesized by a radical mechanism in the presence of potassium persulfate as an initiator. Calorimetric studies have shown that the rate of copolymerization does not depend on the concentration of chitosan. It has been shown that in the presence of a polysaccharide, the enthalpy of polymerization of acrylic acid increases in absolute value, which is probably related to a decrease in the reactivity of the monomer while simultaneously increasing the reactivity of the corresponding radical. Water absorption studies have shown that the obtained materials have superabsorbent properties and can be recommended for use as environmentally friendly water-absorbing materials.