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| 001 | 201671 | ||
| 005 | 20240619092010.0 | ||
| 024 | 7 | _ | |a 10.1209/0295-5075/95/56003 |2 doi |
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| 100 | 1 | _ | |a Diddens, D. |0 P:(DE-HGF)0 |b 0 |e Corresponding Author |
| 245 | _ | _ | |a Microscopic understanding of the complex polymer dynamics in a blend —A molecular-dynamics simulation study |
| 260 | _ | _ | |a Les Ulis |c 2011 |b EDP Sciences |
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| 520 | _ | _ | |a Within polymer blends composed of two species with largely different glass transition temperatures like PEO/PMMA, the dynamics of the fast PEO component is severely affected by the rather immobile PMMA, reflected by a breakdown of the typical Rouse scaling. The phenomenological random Rouse model (RRM), in which each monomer has an individual mobility obeying a broad log-normal distribution, has been applied to these blends. Using a newly developed method, we extract the distribution of friction coefficients from MD simulations of a PEO/PMMA blend, thereby testing the RRM explicitly. In our simulations we observe that the distribution is much narrower than expected from the RRM. Here, rather, the presence of additional forward-backward correlations of intermolecular origin is responsible for the anomalous PEO behavior. |
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| 773 | _ | _ | |a 10.1209/0295-5075/95/56003 |g Vol. 95, no. 5, p. 56003 - |0 PERI:(DE-600)1465366-7 |n 5 |p 56003 - |t epl |v 95 |y 2011 |x 1286-4854 |
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