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

Authors

  • 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

DOI:

https://doi.org/10.5755/j01.ms.20.3.5426

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

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Published

2014-09-17

Issue

Vol. 20 No. 3 (2014)

Section

POLYMERS AND COMPOSITES, WOOD

License

 

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