Used as a reactive monomer in the synthesis of functional polymers, particularly in producing cationic or stimuli-responsive materials. Its acrylamide group enables polymerization with other vinyl monomers, while the tertiary amine provides pH sensitivity, making it valuable in drug delivery systems and smart hydrogels. Commonly applied in coatings, adhesives, and personal care products where water solubility and adjustable charge density are needed. Also utilized in flocculants for water treatment due to its ability to enhance particle aggregation under varying pH conditions.