Preparation and Superabsorbent of a Novel Copolymer Nanocomposite: Optimization of Swelling Behavior
نویسندگان
1 Department of Chemistry, College of Sciences for Girls, University of Babylon, Hilla, Iraq
2 Department of Chemistry, College of Education, University of Al-Qadisiyah, Al-Qadisiyah, Iraq
3 Department of Chemistry, College of Sciences for Girls, University of Babylon, Hilla, Iraq
4 Department of Pharmaceutics, Al-Nisour University College, Baghdad, Iraq
doi
10.22052/JNS.2025.04.021چکیده
Biosorbents are environmentally friendly, readily available, have high absorption efficiency, and are desirable for the treatment of contaminated water. Herein, a covalently cross-linked green macro particle hydrogel nanocomposite CMC(IA-coAm-Ca) as a bio-adsorbent was prepared through a polysaccharide carboxymethyl cellulose reaction with acrylamide (Am)-Itaconic acid (IA) modified carboxymethyl cellulose (CMC) and further Ca(II) crosslinking polymerization. To limit the structure and characteristics of the nanocomposite composite several techniques were used such as (HRTEM), (FESFM/EDX), (XRD), and (FTIR),. The practical experiments included the study of improving the preparation conditions produced by a nanocomposite with the maximum SR%: the effect concentration of CMC, the effect of Am, the effect of IA, the effect of Ca(II) ion crosslinking effect of pH, and effect of temperature. The results show that employing (1 g) CMC, (2 g) Am, 2 ml IA, and (2 g) Ca(II) ion crosslinking. The hydrogel nanocomposites highest swelling ratio SR% in DW was 2100%. It was found that the mechanical water retention properties are strongly affected by monomer to CMC ratio and concentration of Ca(II) ion crosslinking. thus, the hydrogel displayed swelling behaviors that were monomers-dependent.
