Langevin dynamics of polymeric manifolds in melts

Citation
Vg. Rostiashvili et al., Langevin dynamics of polymeric manifolds in melts, J PHYS-COND, 11(10A), 1999, pp. A307-A315
Citations number
31
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN journal
09538984 → ACNP
Volume
11
Issue
10A
Year of publication
1999
Pages
A307 - A315
Database
ISI
SICI code
0953-8984(19990315)11:10A<A307:LDOPMI>2.0.ZU;2-H
Abstract
The Martin-Siggia-Rose generating functional (MSR-GF) technique is used for treating the polymeric D-dimensional-manifold melt dynamics. The one- (tes t-) manifold dynamics and the collective dynamics are considered separately . The test-manifold dynamics is obtained by integrating out the melt collec tive variables. This is done within the dynamic random-phase approximation (RPA). The resulting effective-action functional of the test manifold is tr eated by making use of the self-consistent Hartree approximation. As a cons equence, the generalized Rouse equation of the test manifold is derived, an d its static and dynamic properties are studied. By making use the MSR-GF t echnique, the fluctuations around the RPA of the collective variables-mass density and response-field density-are investigated. As a result, the equat ions for the correlation and response functions are derived. The memory ker nel can be specified for the ideal glass transition as a sum of all 'water- melon' diagrams.