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Confined organization of fullerene units along high polymer chains
- Source :
- Journal of Materials Chemistry C. 1:5747
- Publication Year :
- 2013
- Publisher :
- Royal Society of Chemistry (RSC), 2013.
-
Abstract
- Conductive fullerene (C_60) units were designed to be arranged in one dimensional close contact by locally organizing them with covalent bonds in a spatially constrained manner. Combined molecular dynamics and quantum chemical calculations predicted that the intramolecular electronic interactions (i.e. charge transport) between the pendant C_60 units could be controlled by the length of the spacers linking the C_60 units and the polymer main chain. In this context, C_60 side-chain polymers with high relative degrees of polymerization up to 1220 and fullerene compositions up to 53% were synthesized by ruthenium catalyzed ring-opening metathesis polymerization of the corresponding norbornene-functionalized monomers. UV/vis absorption and photothermal deflection spectra corroborated the enhanced inter-fullerene interactions along the polymer chains. The electron mobility measured for the thin film field-effect transistor devices from the polymers was more than an order of magnitude higher than that from the monomers, as a result of the stronger electronic coupling between the adjacent fullerene units within the long polymer chains. This molecular design strategy represents a general approach to the enhancement of charge transport properties of organic materials via covalent bond-based organization.
- Subjects :
- chemistry.chemical_classification
Quantitative Biology::Biomolecules
Materials science
Fullerene
General Chemistry
Polymer
chemistry.chemical_compound
Molecular dynamics
Monomer
chemistry
Polymerization
Chemical physics
Covalent bond
Intramolecular force
Polymer chemistry
Physics::Atomic and Molecular Clusters
Materials Chemistry
Thin film
Subjects
Details
- ISSN :
- 20507534 and 20507526
- Volume :
- 1
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Chemistry C
- Accession number :
- edsair.doi.dedup.....8bcb4181b20b198a69f0e50d219786b0