In this contribution, we describe the preparation of antimicrobial latexes via ab initio surfactant-free emulsion polymerization induced by  RAFT using monomers as: 3-(trimethylammonium) propyl methacrylamide chloride (MAPTAC), 2-(dimethylamino) ethyl methacrylate chloride (MADQUAT), quaternized dimethylamino propyl methacrylamide (DMAPMA) and quaternized 2-(dimethylamino) ethyl methacrylate. First, a stabilizing block was formed from one of these water-soluble monomers in aqueous media. Then, the butyl acrylate was introduced to form a block copolymer which self-assembled forming nanoparticles holding the quaternary ammonium cations in the hydrophilic corona. The molecular weight of block copolymers was estimated from their UV spectra (Mn= 6,000 � 15,000 g/mol) and the minimum inhibitory concentration (MIC) of latexes was evaluated against Staphylococcusaureus (Gram +), Escherichia coli (Gram -).

Synthesis of antimicrobial latexes

248th National Meeting (2014)

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