This work is the first report to prepare surface active solid nanogels particles which has ability to lower the surface and interfacial tension of aqueous and non-aqueous media. Moreover, this work aims to use nanogels as stabilizer for non-aqueous solvents such as formamide, hexane and toluene. The present work synthesized a series of amphiphilic crosslinked N-isopropylacrylamide (NIPAAm) and 2-acrylamido-2-methylpropane sulfonic acid (AMPS) copolymer nanogel based on temperature program method using polymerizable surfactants based on nonyl phenol ethoxylates. The morphologies of the prepared nanogels were detected by TEM and SEM technique [figure 1  ]. The lower critical transition temperatures (LCST) were determined from DSC technique. The NIPAm/AMPS nanogels reduced the surface tension of water to about 30.1 mN/m at 25 �C and a little increase at 40 �C. The relationship between surface activity and nanogels morphologies and mol percentages of NIPAm was discussed. The surface adsorption state and surface adsorbed layer of NIPAm/AMPS dispersions were also discussed. 

Surface activity of amphiphilic 2-acylamido-2-methylpropane sulfonic acid - co-N-isopropyl acylamide nanoparticles in aqueous and non-aqueous media

246th National Meeting (2013)

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