{
    "content": "The synthesis of hydrophilic polymers involves monomers with functional groups such as sulfonate, hydroxyl, and carboxyl groups, which enhance water interactions; the sulfonate groups in particular enhance hydrophilicity by creating ionic interactions with water, while hydroxyl groups promote hydrogen bonding, and carboxyl groups increase solubility and further facilitate interactions with water.The text does not provide any specific information regarding the monomer structures, functional groups that enhance hydrophilicity, or explanations of how these functional groups improve interactions with water.The hydrophilic organic polymer antifog coatings contain polar hydrophilic functional groups such as hydroxyl and carboxyl groups that enhance hydrophilicity by improving the wettability of the substrate surface, allowing water droplets to spread quickly and uniformly, thus lowering the static water contact angle.The monomers used in synthesizing the hydrophilic polymers include sulfonate-containing polyacrylate, which enhances hydrophilicity due to the presence of sulfonate groups that serve as strong hydrophilic groups facilitating dispersion in water, and hydroxyl groups that can react with isocyanate groups, contributing to the water resistance and durability of the resulting coating.The hydrophilic polymers synthesized incorporate monomers such as methacrylic acid, hydroxyethyl methacrylate, sodium 2-acrylamido-2-methylpropanesulfonate, and others, which contain functional groups such as sulfonic acid and carboxylic acid, enhancing hydrophilicity through strong ionic interactions and hydrogen bonding with water.Monomers used for synthesizing hydrophilic polymers include methacrylic acid butyl ester, methacrylic acid methyl ester, isooctyl acrylate, hydroxypropyl methacrylate, and vinyl sulfonate, where functional groups such as sulfonate groups enhance hydrophilicity by increasing the ionic and polar interactions with water, allowing for better water retention and improved interaction with polar solvents."
}