Oxidative destruction of dinitrophenols by Fenton’s reagent in the presence of inorganic salts

The influence of inorganic salts on the kinetics of oxidation of 2,4-and 2,6-dinitrophenols by Fenton’s reagent, hydrogen peroxide, in the presence of iron(II) ions was studied.     

Chemical composition of the surface of modifying polymers in filled cellulose nitrate composites: An IR study

Russian Journal of Applied Chemistry - The surface of modifying polymers in filled cellulose nitrate composites was studied by attenuated total internal reflection IR spectroscopy. The qualitative...     

Energy and acid-base characteristics of cellulose nitrate surface with various substitution degree

Reasons of low interphase adhesion interaction in the system cellulose nitrate, nitramine-type filling agent, were studied on the basis of data on the free surface energy and on the acidity parameter for cellulose nitrates with various substitution degree.     

Energy and acid-base characteristics of the surfaces of polymeric modifiers for filled cellulose nitrate composites

The energy and acid-base characteristics of the surface of butadiene-nitrile (SKN-18, SKN-26, SKN-40) and urethane (SKU-8A, SKU-8TB) rubbers, and also of polyvinyl nitrate and polyvinyl butyral were determined. Butadiene-nitrile rubbers are characterized by the highest, and vinyl polymers, by the lowest free surface energy. The free surface energy of urethane rubbers has intermediate values. The results obtained show that the surface energy of the polymers is determined both by the chemical nature of functional groups located directly in the surface layer and by the macromolecular packing density. The surface acidity increases in the order polyvinyl butyral < polyvinyl nitrate < SKU < SKN. The nature of the surface of the polymers under consideration is determined by prevalence of certain acid-base sites of adhesion interaction as a result of conformational turns of macromolecular chain segments.