Effect of Hydration on the Structure and Conductivity of Sodium Sulfate and Potassium Chloride Matrix Electrolytes in a Hybrid Material of Cellulose Fabric, Macromolecular Cyclic Aminoacetate, and Aerosil

Abstract

Electron micrographs were obtained and the conductivity was measured for hydrated and anhydrous matrix electrolytes of sodium sulfate and potassium chloride in a hybrid organo-inorganic material of cellulose fiber and macromolecular cyclic aminoacetate grafted to aerosil microparticles. The ionic conductivity of anhydrous electrolytes is less than 1 × 10^–7 S, while that of hydrated electrolytes is 1.3 × 10^–3 and 2.3 × 10^–3 S for Na₂SO₄ and KCl, respectively. Scattered KCl crystals and Na₂SO₄ druses are visible on the surface of the structural elements of the material in anhydrous electrolytes. In hydrated electrolytes with KCl, the surfaces are covered with openwork films, while in electrolytes with Na₂SO₄, with films of the form of dispersed droplets. These films form associates of solvatocomplexes involving ligand groups from the pore walls and water molecules.