Supramolecular Macrostructures of UPy-Functionalized Carbon Nanotubes.
Carbon nanotubes (CNTs) are considered excellent materials for the construction of flexible displays due to their nanoscale dimensions and unique physical and chemical properties. By using the recognition properties of 2-ureido-4[1H]pyrimidinone (UPy), a versatile and simple methodology was demonstrated for the construction of macroscopic structures based on UPy-CNT/polymer composites prepared by a combination of two functionalization approaches: 1) covalent attachment of UPy pendants on the multiwalled CNT surface (UPy-MWCNTs) and 2) directed self-assembly of UPy-MWCNTs within polymers bearing UPy pendants (Bis-UPy 1 and Bis-UPy 2) by quadruple complementary DDAA-AADD hydrogen-bond recognition (D=donor, A=acceptor).
Center of Excellence for Nanostructured Materials (CENMAT), INSTM UdR di Trieste, Dipartimento di Scienze Chimiche e Farmaceutiche, University of Trieste, Piazzale Europa 1, TS I-34127 (Italy).
Alessandra
A
Micoli
Laboratory of Macromolecular and Organic Chemistry and Dutch Polymer Institute, Eindhoven University of Technology, PO Box 513, NL-5600 MB Eindhoven (The Netherlands).
Marko
M
Nieuwenhuizen
Laboratory of Macromolecular and Organic Chemistry and Dutch Polymer Institute, Eindhoven University of Technology, PO Box 513, NL-5600 MB Eindhoven (The Netherlands).
Marcel
M
Koenigs
Instituto de Física, Universidad Autónoma de San Luis Potosí, Manuel Nava 6, Zona Universitaria, SLP 78290 (Mexico). mildred@ifisica.uaslp.mx.
Mildred
M
Quintana
Laboratory of Macromolecular and Organic Chemistry and Dutch Polymer Institute, Eindhoven University of Technology, PO Box 513, NL-5600 MB Eindhoven (The Netherlands). r.p.sijbesma@tue.nl.
Rint
R
Sijbesma
Center of Excellence for Nanostructured Materials (CENMAT), INSTM UdR di Trieste, Dipartimento di Scienze Chimiche e Farmaceutiche, University of Trieste, Piazzale Europa 1, TS I-34127 (Italy). prato@units.it.
Maurizio
M
Prato
covalent functionalization; hydrogen bonds; nanotubes; pyrimidinones; supramolecular chemistry