Структурирование водных растворов поливинилового спирта физическим и химическим способами

Abstract

Multifunctional materials based on an aqueous solution of polyvinyl alcohol were prepared and investigated. The materials were obtained by physical and chemical cross-linking, resulting in cryogels and hydrogels, respectively. The cross-linking reagent was glyoxal. Using laboratory setup, which is based on Maxwell rheological model, the effect of the concentration of PVA cryogel at the elastic modulus, and threecomponent systems kriostrukturirovanie hydrogel (PVA + glyoxal + water). The kinetics of gel formation of a three-component hydrogel system (PVA + glyoxal + water) was studied by rotational viscosimetry.