Is there a higher-order Mode Coupling transition in polymer blends?
| dc.creator | Moreno, Angel J. | |
| dc.creator | Colmenero, Juan | |
| dc.date | 2005-11-08 | |
| dc.date | 2006-05-11 | |
| dc.date.accessioned | 2026-07-07T06:45:55Z | |
| dc.date.available | 2026-07-07T06:45:55Z | |
| dc.description | We present simulations on a binary blend of bead-spring polymer chains. The introduction of monomer size disparity yields very different relaxation times for each component of the blend. Competition between two different arrest mechanisms, namely bulk-like dynamics and confinement, leads to an anomalous relaxation scenario for the fast component, characterized by sublinear time dependence for mean squared displacements, or logarithmic decay and convex-to-concave crossover for density-density correlators. These anomalous dynamic features, which are observed over time intervals extending up to four decades, strongly resemble predictions of Mode Coupling Theory for nearby higher-order transitions. Chain connectivity extends anomalous relaxation over a wide range of blend compositions. | |
| dc.description | Published in Journal of Chemical Physics 124 (2006) 184906 | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0511181 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0511181 | |
| dc.identifier | Journal of Chemical Physics 124 (2006) 184906 | |
| dc.identifier | doi:10.1063/1.2198202 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/103180 | |
| dc.subject | Soft Condensed Matter | |
| dc.title | Is there a higher-order Mode Coupling transition in polymer blends? | |
| dc.type | text |