Pressure-induced polymerization of aromatic molecules in the crystal phase has been demonstrated as a practicable route for the synthesis of highly ordered polymers but this approach has never been tested to produce highly ordered polyaniline (PANI) that is expected to possess extraordinary electronic and optoelectronic properties. Here we show the synthesis of diamondoid polyaniline-like nanothreads at 33 GPa and 550 K by compressing aniline in crystal phase-II. Infrared spectroscopy, transmission electron microscopy, X-ray diffraction data, and DFT calculations support the formation of this totally new polyaniline-like nanothread. The NH2-enriched carbon nanothread combines the outstanding mechanical properties of carbon nanotubes with the versatility of NH2 groups decorating the exterior of the nanothreads representing potential active sites for doping and as linkers for molecules with biological interest and inorganic nanostructures.

One-dimensional diamondoid polyaniline-like nanothreads from compressed crystal aniline / Nobrega, Marcelo M.; Teixeira-Neto, Erico; Cairns, Andrew B.; Temperini, Marcia L. A.; Bini, Roberto. - In: CHEMICAL SCIENCE. - ISSN 2041-6520. - STAMPA. - 9:(2018), pp. 254-260. [10.1039/c7sc03445h]

One-dimensional diamondoid polyaniline-like nanothreads from compressed crystal aniline

Bini, Roberto
2018

Abstract

Pressure-induced polymerization of aromatic molecules in the crystal phase has been demonstrated as a practicable route for the synthesis of highly ordered polymers but this approach has never been tested to produce highly ordered polyaniline (PANI) that is expected to possess extraordinary electronic and optoelectronic properties. Here we show the synthesis of diamondoid polyaniline-like nanothreads at 33 GPa and 550 K by compressing aniline in crystal phase-II. Infrared spectroscopy, transmission electron microscopy, X-ray diffraction data, and DFT calculations support the formation of this totally new polyaniline-like nanothread. The NH2-enriched carbon nanothread combines the outstanding mechanical properties of carbon nanotubes with the versatility of NH2 groups decorating the exterior of the nanothreads representing potential active sites for doping and as linkers for molecules with biological interest and inorganic nanostructures.
2018
9
254
260
Nobrega, Marcelo M.; Teixeira-Neto, Erico; Cairns, Andrew B.; Temperini, Marcia L. A.; Bini, Roberto
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1109491
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