Chain Diffusion in Lamellar Block Copolymers
| dc.creator | Murat, Michael | |
| dc.creator | Grest, Gary S. | |
| dc.creator | Kremer, Kurt | |
| dc.date | 1997-05-28 | |
| dc.date.accessioned | 2026-07-07T09:11:48Z | |
| dc.date.available | 2026-07-07T09:11:48Z | |
| dc.description | Diffusion of symmetric diblock copolymer chains in macroscopically oriented lamellar block copolymers are studied in a molecular dynamics simulation. Results for diffusion constant both parallel $D_\parallel$ and perpendicular $D_\perp$ to the lamellar planes are compared to results in the disordered one phase region. For diblocks of length N=40 (1.1 N_e) and $100 (3N_e)$, where $N_e$ is the entanglement length of a homopolymer melt at the same density, $D_\parallel$ is nearly independent of $χ$, while $D_\perp$ is strongly suppressed as $χ$ is increased. These results are in agreement with theoretical predictions based on the Rouse model. The isotropic diffusion constant of quenched disordered systems is approximated fairly well by $(2D_\parallel+D_\perp)/3$ of the corresponding lamellar system. | |
| dc.description | Revtex 12 pages, 4 postscript figures, uses psfig | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9705293 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9705293 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/151807 | |
| dc.subject | Soft Condensed Matter | |
| dc.subject | Materials Science | |
| dc.title | Chain Diffusion in Lamellar Block Copolymers | |
| dc.type | text |