FILM PROPERTIES OF NANOCRYSTALLINE CELLULOSE WITH VARIOUS CONTENTS OF SULFATE GROUPS

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Воронова, Марина Игоревна ; Лебедева, Татьяна Николаевна ; Суров, Олег Валентинович ; Захаров, Анатолий Георгиевич (2013)
  • Publisher: Altai State University
  • Journal: Khimiia rastitel'nogo syr'ia (Chemistry of plant raw material) (issn: 1029-5143, eissn: 1029-5151)
  • Related identifiers: doi: 10.14258/jcprm.1303049
  • Subject: nanocrystalline cellulose; hydrolysis; surface morphology | нанокристаллическая целлюлоза, гидролиз, морфология поверхности

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.
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