Elucidation of the structure of single chain nanoparticles assembled at the air/water interface
Water-soluble amphiphilic copolymers containing 2-acetoacetoxyethyl methacrylate (AEMA) and N-isopropyl acrylamide (NIPAM) as monomers can self-fold into single-chain nanoparticles adopting a globular conformation displaying a hydrophobic core/hydrophilic shell morphology. We recently investigated in our lab that air/water interfaces can be used as platform for promoting the direct and spontaneous self-assembly of SCNPs based on P(NIPAM-co-AEMA). We also fine tuned the SCNPS ensemble by imposing interfacial flows and/or engineering the interfacial forces dictated by the hydrophobic/hydrophylic balance of the polymeric nanoparticles at the interface, by varying an environmental factor such as the temperature. To address the interfacial structure of P(NIPAM-co-AEMA) SCNPs, we will employ neutron reflectometry to investigate the out-of-plane density profile of SNCPS at air-water interfaces in-situ as a function of their lateral packing and temperature and compare these results with our previous findings involving atomic force microscopy in-plane characterization.
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Armando Maestro; ALVAREZ FERNANDEZ Alberto; GUTFREUND Philipp; ORIA LEDESMA Leyre; Nicoḷ Paracini; PENA FIGUEROA Miriam and VERDE SESTO Ester. (2024). Elucidation of the structure of single chain nanoparticles assembled at the air/water interface. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-11-2199
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