Semiconducting Diblock Copolymers Synthesized by Means of Controlled Radical Polymerization Techniques
| Autor: | U Stalmach, Georges Hadziioannou, C. Videlot, B. de Boer, P.F.van Hutten |
|---|---|
| Přispěvatelé: | Zernike Institute for Advanced Materials |
| Rok vydání: | 2000 |
| Předmět: |
BUCKMINSTERFULLERENE
ORGANIC MATERIALS FULLERENES Nanostructure Fullerene Radical polymerization COIL BLOCK-COPOLYMERS NANOSTRUCTURES Biochemistry Catalysis Electron transfer Colloid and Surface Chemistry Polymer chemistry Copolymer Reversible addition−fragmentation chain-transfer polymerization SUPRAMOLECULAR MATERIALS GeneralLiterature_REFERENCE(e.g. dictionaries encyclopedias glossaries) chemistry.chemical_classification General Chemistry Polymer chemistry ComputingMethodologies_DOCUMENTANDTEXTPROCESSING CHAIN POLYMERS C-60 Luminescence ROD-COIL |
| Zdroj: | Journal of the American Chemical Society, 122(23), 5464-5472. AMER CHEMICAL SOC |
| ISSN: | 1520-5126 0002-7863 |
| DOI: | 10.1021/ja000160a |
| Popis: | A donor−acceptor, rod−coil diblock copolymer has been synthesized with the objective of enhancing the photovoltaic efficiency of the PPV−C60 (PPV = poly(p-phenylenevinylene)) system by the incorporation of both components in a molecular architecture that is self-structuring through microphase separation. Diblock copolymers were obtained by using an end-functionalized rigid-rod block of poly(2,5-dioctyloxy-1,4-phenylenevinylene) as a macroinitiator for the nitroxide-mediated controlled radical polymerization of a flexible poly(styrene-stat-chloromethylstyrene) block. The latter block was subsequently functionalized with C60 through atom-transfer radical addition. In a spin-cast film of the final diblock copolymer, the luminescence from PPV is strongly quenched, indicating efficient electron transfer to C60. Under suitable conditions, solution-cast films of these diblock copolymers exhibit micrometer-scale, honeycomb-like patterns of holes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|