Supramolecular assembly of graphene with functionalized poly(fluorene-alt-phenylene): the role of the anthraquinone pendant groups.

@article{Castelan2011SupramolecularAO,
  title={Supramolecular assembly of graphene with functionalized poly(fluorene-alt-phenylene): the role of the anthraquinone pendant groups.},
  author={Marta Castela{\'i}n and Horacio Javier Salavagione and Rafael G{\'o}mez and Jos{\'e} L. Segura},
  journal={Chemical communications},
  year={2011},
  volume={47 27},
  pages={
          7677-9
        }
}
Hybrid materials composed of graphene and conjugated poly(fluorene-alt-phenylene) endowed with redox-active anthraquinone moieties are prepared. Remarkable changes in the electronic properties of the polymer are observed. Effective interactions among the pendant anthraquinone and graphene, likely due to π-π stacking, are confirmed. 
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References

SHOWING 1-10 OF 30 REFERENCES
High-yield organic dispersions of unfunctionalized graphene.
We report a simple, high-yield, method of producing homogeneous dispersions of unfunctionalized and nonoxidized graphene nanosheets in ortho-dichlorobenzene (ODCB). Sonication/centrifugation of
Chemical derivatisation of multiwalled carbon nanotubes using diazonium salts.
A chem. activated method of covalently derivatizing carbon powder, via the chem. redn. of aryl diazonium salts with hypophosphorous acid, to include the covalent derivatization of multiwalled carbon
Synthesis and photophysical properties of conjugated polymers with pendant 9,10-anthraquinone units.
TLDR
The photophysical properties of a series of electron-donor conjugated copolymers with pendant electron-acceptor units, designed to have different optical pi-pi* band gaps, are investigated.
Influence of single-walled carbon nanotubes induced crystallinity enhancement and morphology change on polymer photovoltaic devices.
  • J. Geng, T. Zeng
  • Chemistry, Medicine
    Journal of the American Chemical Society
  • 2006
Single-walled carbon nanotubes (SWNTs) were determined to have significant interaction with poly(3-hexylthiophene) (P3HT), which is helpful to form continuous active film with interpenetrating
Spectroelectrochemical Study of Electron and Energy Transfer in Poly(fluorene-alt-phenylene) with Perylenediimide Pendant Groups
Electrochemical and spectroelectrochemical studies have been performed on a (fluorene-alt-phenylene) polymer with perylenediimide pendant groups. This polymer can be p-doped by oxidation of the
Stacking of polycyclic aromatic hydrocarbons as prototype for graphene multilayers, studied using density functional theory augmented with a dispersion term.
TLDR
For stacked bilayers (dimers) and multilayers of polyaromatic hydrocarbons, which serve as molecular models of graphene sheets, it is found that binding energies and energy gaps are strongly dependent on their sizes, while the stacking order and the number of stacked layers have a minor influence.
High-quality few layer graphene produced by electrochemical intercalation and microwave-assisted expansion of graphite
Few-layer graphene is synthesized from electrochemically-produced graphite intercalation compounds in aqueous perchloric acid. Although anodic intercalation is more efficient in terms of time,
Synthesis, optical properties, and aggregation behavior of a triad system based on perylene and oligo(p-phenylene vinylene) units.
TLDR
CPK models with a dimeric structure, in which two perylene molecules are held together by intermolecular hydrogen bonding with the perylene core shifted slightly with respect to one another, could account for the optical properties and the observation of the four different peaks in the (1)H NMR spectra in polar solvent.
Polymer Photovoltaic Cells Based on Solution‐Processable Graphene and P3HT
A soluble graphene, which has a one-atom thickness and a two-dimensional structure, is blended with poly(3-hexylthiophene) (P3HT) and used as the active layer in bulk heterojunction (BHJ) polymer
Single-wall carbon nanotube/conjugated polymer photovoltaic devices
We report the optoelectronic properties occurring in single-walled carbon nanotubes (SWNTs)—conjugated polymer, poly(3-octylthiophene) composites. Composite films were drop or spin cast from a
...
1
2
3
...