Nematic Solvation of Segmented Polymer Chains
| Autor: | S, Link, D, Hu, W-S, Chang, G D, Scholes, P F, Barbara |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
chemistry.chemical_classification
Quantitative Biology::Biomolecules Nanostructure Materials science Mechanical Engineering Solvation Bioengineering General Chemistry Polymer Conjugated system Conformational entropy Condensed Matter Physics Condensed Matter::Soft Condensed Matter Crystallography chemistry Chemical physics Liquid crystal General Materials Science Elongation Anisotropy |
| Zdroj: | Nano Letters. 5:1757-1760 |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/nl051108l |
| Popis: | We examine the effect of polymer chain segmentation on the recently discovered ability of nematic solvents to elongate and align polymer chain solutes. Coordinated single molecule spectroscopy and beads-on-a-chain simulations are used to study the orientational and conformational order of a series of segmented conjugated polymers, dissolved in the nematic liquid crystal 5CB. The order parameters for alignment and elongation are both observed to decrease with increasing segmentation, reflecting an interplay among conformational entropy, solvation anisotropy, and bending energy of the chain. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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