New piperidinium surfactants containing N-ethylcarbamate fragment: aggregation properties and antimicrobial activity

A homological series of novel piperidinium surfactants containing N-ethylcarbamate fragment and dodecyl, tetradecyl, or hexadecyl substituents was synthesized. Quantitative parameters describing their surface activity and aggregation behavior in water were determined using tensiometry and spectrophotometry. These cationic surfactants exhibit significant antimicrobial activity against several pathogenic plant strains, particularly bacteria, which increases with the transition from dodecyl to hexadecyl derivatives.