Preparation and Characterization of Potentially Antimicrobial Polymer Films Containing Starch Nano- and Microparticles

  • Paulius Pavelas DANILOVAS Kaunas University of Technolgy, Department of Organic Technology
  • Vesta NAVIKAITĖ Kaunas University of Technolgy, Department of Organic Technology
  • Ramunė RUTKAITĖ Kaunas University of Technolgy, Department of Organic Technology
Keywords: biopolymers, cationic starch, iodophores, nanocomposites

Abstract

The forming conditions of biodegradable polymer films containing iodine-modified starch particles as well as the properties of the obtained films were investigated. Cationic cross-linked starch microparticles and cationic starch nanoparticles were dispersed in cellulose acetate and hydroxyethyl cellulose solution, respectively, and composite films were spin-casted. The obtained films were characterized and their mechanical properties were assessed. The cellulose acetate solution has been found to be an appropriate matrix for the dispersion of dry modified starch microparticles, but not in the case of nanoparticles. Starch nanoparticles were obtained in an aqueous medium, and the mechanical properties of the formed cellulose acetate films are significantly reduced by water present in the casting solution. It has been estimated that a fairly high amount of nanoparticles (18 wt%) can be immobilized into films of water-soluble hydroxyethyl cellulose without markedly affecting the mechanical properties of the films.

DOI: http://dx.doi.org/10.5755/j01.ms.20.3.5426

Author Biography

Paulius Pavelas DANILOVAS, Kaunas University of Technolgy, Department of Organic Technology
Published
2014-09-17
Section
POLYMERS AND COMPOSITES, WOOD