{
    "content": "The synthesis of hydrophilic polymers involves vinyl monomers such as N-vinylpyrrolidone (NVP), which contains a lactam functional group that enhances hydrophilicity through strong hydrogen bonding interactions with water molecules, consequently improving water absorption and polymer swelling properties.The monomers used for synthesizing hydrophilic polymers include 1-vinyl-2-pyrrolidone (NVP), which contains a lactam functional group that enhances hydrophilicity by forming hydrogen bonds with water, and thus improving interaction with water."
}