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| Hauptseite > Publikationsdatenbank > Unusual Thermal Diffusion in Polymer Solutions > print |
| 001 | 32997 | ||
| 005 | 20240619083359.0 | ||
| 017 | _ | _ | |a This version is available at the following Publisher URL: http://prl.aps.org |
| 024 | 7 | _ | |a 10.1103/PhysRevLett.91.245501 |2 DOI |
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| 024 | 7 | _ | |a 2128/1621 |2 Handle |
| 037 | _ | _ | |a PreJuSER-32997 |
| 041 | _ | _ | |a eng |
| 082 | _ | _ | |a 550 |
| 084 | _ | _ | |2 WoS |a Physics, Multidisciplinary |
| 100 | 1 | _ | |a de Gans, B.-J. |b 0 |0 P:(DE-HGF)0 |
| 245 | _ | _ | |a Unusual Thermal Diffusion in Polymer Solutions |
| 260 | _ | _ | |a College Park, Md. |b APS |c 2003 |
| 300 | _ | _ | |a 245501-4 |
| 336 | 7 | _ | |a Journal Article |0 PUB:(DE-HGF)16 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a Output Types/Journal article |2 DataCite |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
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| 336 | 7 | _ | |a article |2 DRIVER |
| 440 | _ | 0 | |a Physical Review Letters |x 0031-9007 |0 4925 |v 91 |
| 500 | _ | _ | |a Record converted from VDB: 12.11.2012 |
| 520 | _ | _ | |a Thermal diffusion forced Rayleigh scattering results on thermal diffusion of poly(ethylene oxide) (PEO) in ethanol/water mixtures are presented. In water-rich solvent mixtures, PEO is found to migrate towards regions of lower temperature. This is typical for polymer solutions and corresponds to a positive Soret coefficient of PEO. In solvent mixtures with low water content, however, the polymer is found to migrate towards higher temperatures, corresponding to a negative Soret coefficient of PEO in ethanol-rich solutions. To our knowledge, this is the first observed sign change of the Soret coefficient of a polymer in solution. We also present a simple lattice model for the polymer solvent system and calculate Soret coefficients with statistical mechanics methods. The calculated values agree qualitatively with the experimental results. |
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| 588 | _ | _ | |a Dataset connected to Web of Science |
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| 700 | 1 | _ | |a Wiegand, S. |b 1 |u FZJ |0 P:(DE-Juel1)131034 |
| 700 | 1 | _ | |a Luettmer-Strathmann, J. |b 2 |0 P:(DE-HGF)0 |
| 773 | _ | _ | |a 10.1103/PhysRevLett.91.245501 |g Vol. 91, p. 245501-4 |p 245501-4 |q 91<245501-4 |0 PERI:(DE-600)1472655-5 |t Physical review letters |v 91 |y 2003 |x 0031-9007 |
| 856 | 7 | _ | |u http://dx.doi.org/10.1103/PhysRevLett.91.245501 |u http://hdl.handle.net/2128/1621 |
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