Ammonio Methacrylate Copolymer
Ratio of ethyl acrylate groups to methyl methacrylate groups to trimethylammonioethyl
methacrylate groups is about 1:2:0.2 as being Type A or 1:2:0.1 as being Type B.
Poly(ethyl acrylate, methyl methacrylate, trimethylammonioethyl methacrylate chloride)
(1:2:0.2);
Ethyl acrylate–methyl methacrylate–trimethylammonioethyl methacrylate chloride copolymer (1:2:0.2);
Poly(ethyl acrylate, methyl methacrylate, trimethylammonioethyl methacrylate chloride) (1:2:0.1);
Ethyl acrylate–methyl methacrylate–trimethylammonioethyl methacrylate chloride copolymer (1:2:0.1) [33434-24-1]
Ethyl acrylate–methyl methacrylate–trimethylammonioethyl methacrylate chloride copolymer (1:2:0.2);
Poly(ethyl acrylate, methyl methacrylate, trimethylammonioethyl methacrylate chloride) (1:2:0.1);
Ethyl acrylate–methyl methacrylate–trimethylammonioethyl methacrylate chloride copolymer (1:2:0.1) [33434-24-1]
DEFINITION
Ammonio Methacrylate Copolymer is a polymerized copolymer of ethyl acrylate, methyl methacrylate, and a low content of methacrylic acid ester with quaternary ammonium groups (trimethylammonioethyl methacrylate chloride). The Assay requirements differ for the two types as set forth in the accompanying table.
USP REFERENCE STANDARDS FOR PURCHASE
USP Ammonio Methacrylate Copolymer, Type A RSUSP Ammonio Methacrylate Copolymer, Type B RS