title: 'All-supramolecular' nanocapsules from low-molecular weight ureas through interfacial addition reaction in miniemulsion.
abstract: This contribution presents a new strategy for preparing nanocapsules with a shell made of a supramolecular polymer which repeating units are held together by reversible interactions rather than covalent bonds. These nanocapsules were prepared in classical miniemulsion through interfacial addition reaction of a diisocyanate (IPDI) and a monoamine (iBA), forming low-molecular weight bis-ureas moieties which are strong self-complementary interacting molecules through hydrogen-bonding. The nanocapsules present a diameter around 100 nm, and MALDI-TOF MS and (1)H NMR analyses confirm the expected molecular characteristics for the shell. This strategy opens the scope of a new type of nanomaterials exhibiting stimuli-responsiveness due to the reversible interaction linking the repeating units.
authors: Univ Lyon 1, IMP, UMR5223, F-69622, Villeurbanne, France.
authors: Emilie
authors: E
authors: Groison
authors: Salim
authors: S
authors: Adjili
authors: Alice
authors: A
authors: Ferrand
authors: Frédéric
authors: F
authors: Lortie
authors: Daniel
authors: D
authors: Portinha
authors: Nathalie
authors: N
authors: Sintes-Zydowicz
mesh_terms: D004655:Emulsions / Q000737:chemistry; D006860:Hydrogen Bonding; D008970:Molecular Weight; D053769:Nanocapsules / Q000737:chemistry* / Q000648:ultrastructure; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D014508:Urea / Q000737:chemistry*
chemical_list: D004655:Emulsions; D053769:Nanocapsules; D011108:Polymers; D014508:Urea