Vinylpyrrolidone-vinylamine copolymer

Vinylpyrrolidone-vinylamine copolymer (CAS 28158-56-7) is a synthetic cationic polymer combining the film-forming characteristics of vinylpyrrolidone with the reactive amine functionality of vinylamine.

It is used across personal care, pharmaceutical, and industrial sectors primarily for rheology modification, surface conditioning, and flocculation. In personal care formulations, the polymer functions as a conditioning agent.

It acts as a film-forming agent in hair care products, improving wet combability and surface adhesion of actives. Pharmaceutical manufacturers use it as a binder or coating aid where controlled surface interaction is required.

Adhesion to substrates is a key benefit in these applications. In water treatment, its cationic amine groups support coagulation and flocculation of suspended particles, making it relevant for industrial effluent processing.

Home care and industrial cleaning formulations incorporate it to modify rheology and improve surface wetting performance on hard surfaces. This versatility makes it a valuable component in diverse chemical systems.

Vinylpyrrolidone-vinylamine copolymer is typically supplied as an aqueous solution, with solids content varying by grade and supplier. Technical and cosmetic-grade specifications are the most commonly available.

Selection is driven by amine content, molecular weight range, and intended application. Buyers should confirm charge density and viscosity profile against their formulation requirements when evaluating supply options.