Modification of microstructural morphology and physical performance of chitosan films

International Journal of Biological Macromolecules
Arun GhoshRichard Walls

Abstract

The development of performance driven materials from bio-renewable resources requires certain chemical modifications, which maintain the microstructure and inherent characteristics without major alteration and the durability of the final products. In the present study, chitosan (N-deacetylation derivative of chitin) films were generated from an aqueous acetic acid solution of chitosan and treated with methanol and ethylene glycol diglycidyl ether (EGDE). The cross-sectional surface microstructures of the untreated and treated films were analyzed using the technique of atomic force microscopy (AFM). The dry mechanical, water absorption, resistance to enzymatic digestion and thermal transition characteristics of the films due to treatment with methanol and EGDE were also studied. Under AFM all produced films exhibited a granular morphology with different nanoparticle or granule size and hill-valley-structure in the cross-sectional surface. The cross-sections of both untreated and methanol treated chitosan films showed a quite dense and uniform coverage with nanoparticles. However, the EGDE treated chitosan film's cross-section contained very scattered distribution of the granules with different vertical distances. The untreated c...Continue Reading

References

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Citations

Sep 27, 2014·Carbohydrate Polymers·Andreia S FerreiraManuel A Coimbra
Aug 1, 2015·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Cláudia NunesManuel A Coimbra
Nov 22, 2019·Journal of Food Science and Technology·Keqin WangHaizhen Zhao
Nov 22, 2019·International Journal of Biological Macromolecules·Mei XieFenxia Wu
Feb 9, 2019·Carbohydrate Polymers·Mariane GattoClassius Ferreira da Silva

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