Anewmethacrylamidemonomer,hexylaminemethacrylamide(MAHA),wassynthesizedandusedinpolymerizations.ThehomopolymerofMAHAanditscopolymersweresynthesizedbyfreeradicalpolymerizationtechniqueswithN-isopropylacrylamide(NIPAAm)intwodifferentcompositions.Thequaternizationofthehomopolymerandcopolymerswerecarriedoutusing1-bromopropane.ThecopolymerswithNIPAAmandalowMAHAcontentshowedtemperature-responsivebehaviorinanaqueousenvironment.Thelowercriticalsolutiontemperatures(LCSTs)ofthesepolymersvariedbetween32℃and44℃.TheLCSTsofquaternizedcopolymerswerehigherthanthoseofneutralcopolymersbecausetheyweremorehydrophilic.TheobtainedhomopolymersandcopolymersweretestedforantibacterialactivitiesagainstS.aureusandE.coli.Thequaternizedwater-solublecopolymersshowedantibacterialactivitiesagainstS.aureus.Thequaternizationresultedinthesynthesisofbothantibacterialandtemperature-responsivecopolymers.
