Effective Production of Poly(3-alkylthiophene) Nanofibers by means of Whisker Method using Anisole Solvent: Structural, Optical, and Electrical Properties
| Autor: | Kohzo Ito, Seiji Heike, Takeshi Shimomura, Tomihiro Hashizume, Sadaki Samitsu |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Polyaniline nanofibers Organic Chemistry Polymer Anisole law.invention Inorganic Chemistry chemistry.chemical_compound chemistry Chemical engineering law Whisker Nanofiber Polymer chemistry Materials Chemistry Side chain Crystallization Alkyl |
| Zdroj: | Macromolecules. 41:8000-8010 |
| ISSN: | 1520-5835 0024-9297 |
| DOI: | 10.1021/ma801128v |
| Popis: | The whisker method using anisole solvent was developed for effective production of high-aspect-ratio poly (3-alkylthiophene) (P3AT) nanofibers, and alkyl chain length dependence on nanofiber formation and their properties were fully investigated. The nanofibers have an anisotropic cross section of 3−4 nm height and 24−27 nm width, which slightly increase with the alkyl chain length, and the aspect ratio reaches 100−1000. The nanofibers consist of more than 104 parallel stacks of the extended polymer backbones along the nanofiber long axis and of 2−3 laminated layers of the polymer backbones separated by alkyl side chains. The nanofiber formation originates from quasi-one-dimensional crystallization of P3ATs induced by both an attractive π−π* interaction between polymer backbones and the crystallization of alkyl side chains. Carrier transport properties of a AuCl3-doped nanofiber network and single nanofibers, both of which are explained by a quasi-one-dimensional variable-range hopping (VRH) model irrespe... |
| Databáze: | OpenAIRE |
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