
Samples of nanocrystalline cellulose (NCC) with various contents of sulfate groups are studied by means of methods of atomic force microscopy, X-ray diffraction, thermogravimetric analysis, differential scanning calorimetry. Properties of films derived by water evaporation from aqueous NCC dispersion depend on concentration of sulfate groups: the temperature and type of thermodestruction are changed versus contents of sulfate groups; the surface morphology alters and surface roughness increases; water adsorption increases particularly at high relative pressure.
Методами атомно-силовой микроскопии, дифференциальной сканирующей калориметрии, рентгеноструктурного и термогравиметрического анализа изучены образцы нанокристаллической целлюлозы (НКЦ) с различным содержанием сульфатных групп. Концентрация сульфатных групп влияет на свойства пленок, полученных испарением воды из водных дисперсий НКЦ: снижается температура и изменяется характер терморазложения; изменяется морфология поверхности и увеличивается ее шероховатость, адсорбция воды, особенно при повышенных относительных давлениях.
nanocrystalline cellulose, hydrolysis, нанокристаллическая целлюлоза, морфология поверхности, surface morphology, гидролиз
nanocrystalline cellulose, hydrolysis, нанокристаллическая целлюлоза, морфология поверхности, surface morphology, гидролиз
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