SYNTHESIS AND CHARACTERIZATION OF BIODEGRADABLE SUPERABSORBENT HYDROGELS OF POLY SODIUM ACRYLATEPOLYVINYL PYROLIDONE

Abstract

Hydrogel is a hydrophilic polymer with a cross-linked network structure, able to swell in water, and has a high water diffusion capacity. Polyvinylpyrrolidone (PVP) is the result of the polymerization of 1-vinylpyrrolidone-2-one. In its polymer form, with the molecular formula (C6H9NO) n, its molecular weight ranges from 10,000 to 700,000, appears as a white or yellowish-white powder; has a faint odor or is odorless, is hygroscopic, and is easily soluble in water, ethanol (95%), chloroform; and is practically insoluble in ether (Anonymous, 1979). Research to determine the effect of superabsorbent hydrogel with the addition of poly(vinyl)pyrrolidone (PVP) powder. Research methods include physical examination and testing of gel fractions in hydrogel formulations. In general, the graph provides an overview of the kinetics of the behavior of three different experimental conditions on the variables studied over a certain period of time. The physical appearance of hydrogels with variations in PVP concentrations of 0.5, 1, 1.5 and 2 was obtained in solid and flexible forms, with clear and white colors.