INTERPENETRATING WATER-SOLUBLE POLYMERS
The formation of interpenetrating grids by combination of water solutions with specific concentrations of polyvinyl alcohol and chitosan was investigated. It was established that the degree of interpenetration between polyvinyl alcohol and chitosan depends on the degree of dissolution of polymer chains in water. It was shown, that the «ideal» structure of interpenetrating grids can be obtained by combining the dilute aqueous solution of polyvinyl alcohol (0,25%) with the 2% aqueous solution of chitosan. The effect of the medium acidity and concentration of NaCl on the structure of the resulting interpenetrating grids was detected.