Modification of Chitosan Structure by Using Different Alkyl Chains and Studying of Some its Properties


Abstract in English

In this paper, the chemical structure of chitosan has been modified by trans esterification reaction with methyl esters both of octanoic and dodecanoic acid, using potassium carbonate as a based catalyst, the degree of substitution has been determinated to change hydrophilic properties, Some physical properties of trans esterification products has been determined by measuring the Kinematic viscosity, degree of turbidity and density of their water solutions.

References used

A. Durand and E. Dellacherie, “Neutral amphiphilic polysaccharides: Chemical structure and emulsifying properties,” Colloid Polym. Sci., vol. 284, no. 5, pp. 536–545, 2006
Se-Kwon Kim, Chitin, Chitosan, Oligosaccharides and Their Derivatives: Biological Activities and Applications. 2011
M. a C. Stuart and J. W. Mulder, “Adsorbed Polymers in Aqueous Media,” Colloids and Surfaces, vol. 15, 1985

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