2-(Methacryloyloxy)ethyltrimethylammonium chloride

2-(Methacryloyloxy)ethyltrimethylammonium chloride, commonly abbreviated as TMAEMC and sold under trade names including DMC 80, Sipomer Q 6-75, and Ageflex FM 1Q75MC, is a cationic quaternary ammonium monomer supplied as an aqueous solution. It carries no assigned E-code and is registered under CAS 5039-78-1, EC 225-733-5.

In water treatment, TMAEMC undergoes free-radical polymerization to produce cationic polyelectrolytes that neutralize negatively charged suspended particles, improving flocculation efficiency. In textile and paper processing, it functions as a reactive crosslinker, forming covalent bonds within fiber matrices to improve wet strength and surface charge retention. It is also incorporated into hydrogel formulations where its quaternary nitrogen group contributes permanent cationic character.

This material is supplied as an aqueous solution and is subject to REACH registration requirements within the European Economic Area. Procurement teams should confirm concentration grade and stabilizer package with the supplier, as solution strength affects handling classification. Standard packaging formats include IBC containers and bulk tankers.