New antimicrobial vinyl copolymer having quaternary ammonium groups

摘要

New polymers (I) with antimicrobial properties comprise: (a) 99-40 wt. % non-functional vinyl monomer units and (b) 1-60 wt. % quaternary ammonium functional vinyl monomer units of formula V-Ay-HSpm-N<+>(R1)4-(m+t)(R2)t. X<-> (II). V = vinyl, acryloyl, methacryloyl, allyl or styryl; A = alkyl, aryl, arylalkyl or hydroxyalkyl linker unit (optionally interrupted by heteroatoms, e.g. in the form of urethane, carbonate, ester, amide or ether groups); y = 0 or 1; HSp = hydrophilic spacer of formula -(O-CH2-CH2)r- and/or -(O-CH2-CHMe)s; r,s = 0-40 and r + s = 2-40; m = 1-3; R1 = methyl, ethyl or benzyl; R2 = 8-20C alkyl; t = 1-3; X<-> = Cl<->, Br<->, I<-> or alkylsulphate. (Meth)acrylate monomers of formula CH2=CR3-CO-(O-CH2-CHR4)nm-N<+>(Me3)4-(m+t)-(R2)t. X<-> (III) are also new. n = 2 -40; R3, R4 = H or Me.