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‘All‐supramolecular’ Nanocapsules from Low‐Molecular Weight Ureas Through Interfacial Addition Reaction in Miniemulsion
Author(s) -
Groison Emilie,
Adjili Salim,
Ferrand Alice,
Lortie Frédéric,
Portinha Daniel,
SintesZydowicz Nathalie
Publication year - 2011
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201000662
Subject(s) - miniemulsion , nanocapsules , supramolecular chemistry , materials science , polymer chemistry , polymer , hydrogen bond , nanomaterials , molecule , covalent bond , supramolecular polymers , chemical engineering , nanoparticle , nanotechnology , polymerization , chemistry , organic chemistry , composite material , engineering
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.