Polymethacrylamidopropyltrimethylammonium chloride

Polymethacrylamidopropyltrimethylammonium chloride (CAS 68039-13-4), also marketed as Polymethacrylamidopropyltrimonium chloride, is a cationic polyelectrolyte used across personal care, water treatment, and industrial processing.

Its permanent positive charge density drives substantivity to negatively charged surfaces, enabling conditioning, fixation, and charge neutralization in formulated systems. In hair and skin care, it functions as a conditioning agent and film former.

This polymer improves wet combability and reduces static in shampoos, conditioners, and leave-on treatments. Water treatment operations use it as a coagulant and flocculant to destabilize suspended particles and accelerate sedimentation.

It is highly effective in municipal and industrial effluent streams for clarifying water. Textile processors apply it during dyeing and finishing to improve dye uptake on anionic fibers and enhance color fastness across various fabrics.

In paper manufacturing, it acts as a retention aid and surface-charge modifier, improving filler retention and sheet formation during wet-end processing. This ensures higher efficiency and better quality in the final paper product.

Supplied as an aqueous solution, the active polymer content typically ranges from 30% to 50% depending on grade and supplier specification. Both cosmetic-grade and technical-grade versions are available for industrial use.

Cosmetic grades meet purity requirements for leave-on and rinse-off personal care applications. Packaging is standard in drums and intermediate bulk containers suited to liquid polymer handling and bulk storage requirements.