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-UPy1 and Bis-UPy2) by quadruple complementary DDAA-AADD hydrogen-bond recognition (D=donor, A=acceptor). Novel carbon nanotube materials stabilized by quadruple hydrogen-bonding interactions (see figure) have been synthesized. 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. © 2015 WILEY-VCH Verlag GmbH %26 Co. KGaA, Weinheim.

covalent functionalization; hydrogen bonds; nanotubes; pyrimidinones; supramolecular chemistry Carbon; Complexation; Flexible displays; Hydrogen bonds; Multiwalled carbon nanotubes (MWCN); Nanotubes; Self assembly; Supramolecular chemistry; Yarn; Covalent functionalizations; Directed self-assembly; Functionalized carbon nanotubes; Macroscopic structure; Nanoscale dimensions; Physical and chemical properties; Pyrimidinones; Recognition properties; Carbon nanotubes

VIVO