{
    "content": "The hydrophilic polymers are synthesized using monomers that include functional groups such as sulfonate groups and hydroxyl groups, which enhance hydrophilicity by increasing water affinity and solubility; for example, the sodium salt of 5-sulfoisophthalic acid improves water interactions through ionic hydration and dipole interactions, while ethylene glycol provides hydrogen bonding capabilities with water.The synthesis of hydrophilic polymers involves using sulfomonomers, such as 5-sulfoisophthalic acid, which contain sulfonate groups that enhance hydrophilicity by promoting ionic interactions with water, and copolymerizable glycols with 2 to 11 carbon atoms that contribute to the overall hydrophilic character of the polymer."
}