Journal
POLYMER SCIENCE SERIES A
Volume 53, Issue 12, Pages 1167-1174Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0965545X11120029
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The rheological properties of carboxymethyl cellulose aqueous solutions containing small amounts of purified montmorillonite and bentonite nanoparticles are studied. The viscosity of mixed solutions decreases after addition of 1 wt % nanoparticles. X-ray diffraction analysis shows that the films contain nanoparticles in the exfoliated state. An examination of the FTIR spectra of composite films suggests a shift in the absorption band due to Si-O groups. This phenomenon may be explained both by a change in the permittivity of the nanoparticle environment and by the formation of hydrogen bonds between Si-O groups and functional groups of cellulose ether. It is shown that the content of the added nanoparticles influences the mechanical characteristics of the films prepared from the systems of interest.
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