Change in Orientation of Polyacrylic Acid and Chitosan Networks by Imprintment of Gold Nanoparticles. Issue 2 (22nd January 2021)

• Record Type: Journal Article
• Authors: Biswal, Anuradha; Sethy, Pramod K.; Swain, Sarat K.
• Is Part Of: Polymer-plastics technology and materials. Volume 60:Issue 2(2021)
• Page Start: 182
• Page End: 194
• Publication Date: 2021-01-22
• Subjects: Biodegradation -- crystallite size -- gold nanoparticles -- morphology -- swelling; Polymers -- Periodicals; Polymerization -- Periodicals; Plastics -- Periodicals; Plastics; Polymerization; Polymers; Periodicals; 668
• DOI: 10.1080/25740881.2020.1793196
• Languages: English
• ISSNs: 2574-0881

Abstract

ABSTRACT: Herein, gold nanoparticles (Au Nps) imprinted polyacrylic acid/chitosan (PAA/CS) nanocomposite hydrogels are designed by in situ polymerization technique. The change in crystallite size and d-spacing is established from X-ray diffraction study. It is interesting to notice that the layered morphology of PAA/CS/Au nanocomposite hydrogel is achieved from field emission scanning electron microscopy due to entanglement of polymeric chains by imprintment of Au Nps. The orientations of polymeric chains reveal the enhancement in pH-responsive swelling percentage and prolong water holding capacity of PAA/CS/Au nanocomposites. Biodegradation of the as-synthesized material is studied from which the antimicrobial activity of Au Nps is predicted. Graphical Abstract: