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Found 2 items.

  • Study of Hydrophilic Properties of Polysaccharides

    Michael Ioelovich
    12-23

    Article ID: 4181
    159  (Abstract) 32  (Download)

    In this research, the structural characteristics, specific surface area, sorption of water vapor, and wetting enthalpy of various polysaccharides (cellulose, hemicelluloses, starch, pectin, chitin, and chitosan) have been studied. It was confirmed that crystallites are inaccessible for water, and therefore water molecules can interact only with polar groups in noncrystalline (amorphous) domains of biopolymers. The...

    2021-12-30

  • Study of Structural Characteristics of Cellulose Esters with Different Degrees of Substitution

    Michael Ioelovich
    38-43

    Article ID: 4805
    119  (Abstract) 14  (Download)
    In this article, structural characteristics of amorphous mono-, di-, andtri-substituted esters of cellulose have been studied. These esters weresynthesized under homogenous conditions using anhydrides of variousaliphatic acids. The specific gravity of the highly substituted samples wasmeasured by a pycnometric method in the aqueous medium. To calculatethe molar, Van der Waals, and free volumes, as well...
    2022-07-29
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