Used as a cationic monomer in the synthesis of functional polymers for water treatment, where it helps in flocculation and removal of suspended particles and organic matter. Commonly employed in the production of cationic polyelectrolytes for papermaking, enhancing dry strength and retention of fillers. Applied in personal care products, especially in hair conditioners and anti-static treatments, due to its ability to bind to negatively charged surfaces like hair and skin. Also utilized in the preparation of hydrogels and coatings with antimicrobial properties, suitable for medical devices and wound dressings. Plays a role in electrophoresis and chromatography as a modifying agent for charged surfaces.