{
    "content": "The hydrophilic polymers synthesized for antifog hard coatings incorporate functional groups such as hydroxy, carboxy, ammonium, and sulfo groups, which enhance the hydrophilicity through increased polarity and the ability to form hydrogen bonds with water, promoting better interactions and a continuous water layer on surfaces.The monomers used for synthesizing hydrophilic polymers include tetraethylene glycol (OEG), which contains hydroxy functional groups, and carboxy-functionalized rod-like polySQ that includes carboxylic acid functional groups; these functional groups enhance hydrophilicity by promoting hydrogen bonding and electrostatic interactions with water molecules."
}