{
    "content": "The hydrophilic polymers are synthesized using various monomers, including A1 (N-vinyl-2-pyrrolidone), which acts as a primary hydrophilic monomer; A2, a vinyl monomer with hydroxy functional groups that enhance hydrophilicity; A4, another vinyl monomer with hydrophilic functional groups that effectively improve the hydrophilicity of the copolymer; and A5, a vinyl monomer with sulfonic acid groups that react with a basic compound to form salts, contributing to enhanced water interactions due to the presence of ionic species and hydroxyl groups that establish hydrogen bonds with water, thereby improving the overall affinity of the polymer for water.The hydrophilic polymers are synthesized from monomers including N-vinyl-2-pyrrolidone, vinyl monomers with hydroxyl functional groups, vinyl monomers with sulfonic acid groups, and vinyl monomers with other hydrophilic functional groups, wherein the hydroxyl and sulfonic acid groups enhance hydrophilicity through their ability to form hydrogen bonds and react with water, promoting better interactions and improving water absorption and retention in the polymer matrix.The monomers used for synthesizing hydrophilic polymers in the study include N-vinyl-2-pyrrolidone (NVP), hydroxyethyl acrylate (HEA), methyl methacrylate (MMA), N,N-dimethylacrylamide (DMAA), and 2-acrylamido-2-methylpropane sulfonic acid (AMPS), with functional groups such as hydroxyl groups in HEA and sulfonic groups in AMPS enhancing hydrophilicity by forming hydrogen bonds with water, thereby increasing water affinity and interaction."
}