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Cellulose

Erschienen in:

01.10.2009

Solution behavior and surface properties of carboxymethylcellulose acetate butyrate

verfasst von: Jorge Amim Jr., Denise F. S. Petri, Francisco C. B. Maia, Paulo B. Miranda

Erschienen in: Cellulose | Ausgabe 5/2009

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Abstract

Solution behavior of carboxymethylcellulose acetate butyrate (CMCAB) in acetone and ethyl acetate has been investigated by small-angle X-ray scattering (SAXS) and capillary viscometry and correlated with the characteristics of CMCAB films. Viscosity and SAXS measurements showed that ethyl acetate is a better solvent than acetone for CMCAB. Thin films of CMCAB were deposited onto silicon wafers (Si/SiO₂) by spin coating. AFM images revealed that CMCAB spin coated films from solutions prepared in ethyl acetate were homogeneous and flat. However, films obtained from solutions in acetone were very rough. Contact angle measurements with polar and apolar test liquids characterized CMCAB surfaces as hydrophobic and allowed estimating the surface energy of CMCAB. Sum frequency generation vibrational spectroscopy was used to understand the role played by solvents and to gain insight about molecular orientation at Si/SiO₂/CMCAB interface.

Vorheriger Artikel Comparison of molecular orientation and mechanical properties of lyocell fibre tow and staple fibres

Nächster Artikel A study of the mechanical, thermal and morphological properties of microcrystalline cellulose particles prepared from cotton slivers using different acid concentrations

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Titel: Solution behavior and surface properties of carboxymethylcellulose acetate butyrate
verfasst von: Jorge Amim Jr.
Denise F. S. Petri
Francisco C. B. Maia
Paulo B. Miranda
Publikationsdatum: 01.10.2009
Verlag: Springer Netherlands
Erschienen in: Cellulose / Ausgabe 5/2009
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI: https://doi.org/10.1007/s10570-009-9295-z

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