Dependence of the ordering degree and thermochemical characteristics of chitin and chitosan on their biological origin |
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| Authors: | V F Ur’yash V N Larina N Yu Kokurina A V Bakulin E A Kashtanov V P Varlamov |
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| Institution: | 1.Research Institute of Chemistry,Lobachevsky University of Nizhni Novgorod,Nizhni Novgorod,Russia;2.Bioengineering Center,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | Standard enthalpies of combustion and formation were studied, along with the enthalpy of interaction of chitin and chitosan
of different origins with water. The concentration of the water phase solution in chitin and chitosan saturated at 273 K was
determined by calorimetry from the enthalpy of melting of the water excess phase. The dependence of these properties on the
source, molecular mass, and degree of ordering of polysaccharides was demonstrated. |
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