{
    "content": "The monomers used for synthesizing the hydrophilic polymers include polyvinyl alcohol (PVA) and sodium alginate (SA), which possess functional groups such as hydroxyl (-OH) in PVA and carboxyl (-COOH) in SA that enhance the hydrophilicity of the resulting polymers by promoting strong hydrogen bonding and ionic interactions with water, facilitating better water retention and spreading.The polymers were synthesized using PVA and SA, which contain hydroxyl (-OH) and carboxylic acid (-COOH) functional groups, respectively; these functional groups enhance hydrophilicity by forming hydrogen bonds with water, thus increasing the water affinity of the resulting polymers."
}