{
    "content": "The monomer structures used for synthesizing hydrophilic polymers include poly(ethylene glycol) (PEG) and surface active agents like Tween 20, which possess functional groups such as hydroxyl groups (-OH) that enhance hydrophilicity by promoting interactions with water through hydrogen bonding.The monomers used for synthesizing hydrophilic polymers include 2-hydroxyethyl methacrylate (2-HEMA) possessing a hydroxyl functional group that enhances hydrophilicity by forming hydrogen bonds with water, and sorbitan monolaurate (Tween 20) which contains multiple hydroxyl groups that also promote strong interactions with water through hydrogen bonding."
}