A study of the interaction between polyelectrolyte-coated nanostructured CaCO3 particles and a stearic acid monolayer spread at the water/air interface

The influence of nanostructured CaCO 3 particles, both uncoated and coated with a polyelectrolyte (poly(diallyldimethylammonium chloride), polyethyleneimine, fluorescein-5-isothiocyanate-labeled poly(allylamine hydrochloride), or sodium polystyrene sulfonate), on a stearic acid monolayer spread on t...

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Bibliographic Details
Published in:Colloid journal of the Russian Academy of Sciences 2017-05, Vol.79 (3), p.360-367
Main Authors: Mironov, E. P., Marchenko, I. V., Artemov, V. V., Bukreeva, T. V.
Format: Article
Language:English
Subjects:
Brewster angle
Calcium carbonate
Chemistry
Chemistry and Materials Science
Chlorides
Fluorescein
Isotherms
Monolayers
Nanostructure
Polyelectrolytes
Polyethyleneimine
Polymer Sciences
Polystyrene resins
Scanning electron microscopy
Sodium polystyrene sulfonate
Stearic acid
Strong interactions (field theory)
Surfaces and Interfaces
Thin Films
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Summary:The influence of nanostructured CaCO 3 particles, both uncoated and coated with a polyelectrolyte (poly(diallyldimethylammonium chloride), polyethyleneimine, fluorescein-5-isothiocyanate-labeled poly(allylamine hydrochloride), or sodium polystyrene sulfonate), on a stearic acid monolayer spread on the surface of an aqueous subphase has been studied. The interaction of the particles present in the subphase with the monolayer as depending on the presence and composition of a polymer coating has been estimated with the help of compression isotherms and the Brewster angle microscopy. The monolayers were transferred from the aqueous subphase onto a solid substrate and studied by scanning electron microscopy. Strong interaction has been revealed between the calcium carbonate particles and the stearic acid monolayer. It has been shown that the transfer of the monolayer from the aqueous suspension surface onto the solid substrate may be accompanied by the detachment of the polymer coating from the surface of CaCO 3 particles or their transfer together with the monolayer.
ISSN:1061-933X
1608-3067
DOI:10.1134/S1061933X17030103