| 摘要 |
Polyacrylate esters with ammonium salt groups obtained by the transesterification of alkyl polyacrylates produced by free radical polymerization are disclosed, wherein the alkyl groups of the acrylate esters have 1 to 8 carbon atoms, up to 50% of the acrylate esters can be replaced by the corresponding methacrylate esters and the transesterification is carried out with a) compounds of the formula <IMAGE> b) saturated or unsaturated aliphatic alcohols having 8 to 22 carbon atoms or alkoxylated alkylphenols having 9 to 27 carbon atoms in the alkylphenol group, wherein the molar ratio of component a) to component b) is 1:9 to 9:1, in such amount that 5 to 70% of the ester groups are transesterified and subsequently, the transesterification product is transformed into a salt. The new polyacrylate esters with ammonium salt groups are distinguished by containing a lesser amount of low molecular weight compounds than products obtained through copolymerization and can be used as cationic surfactants and particularly, as active ingredients of metal adjuvants.
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