Premium
Effect of temperature gradient on polymer migration
Author(s) -
Choi Hyoung J.,
Cho Min S.,
Kim Chul A.,
Jhon Myung S.
Publication year - 1999
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.11538
Subject(s) - polymer , materials science , temperature gradient , flow (mathematics) , dumbbell , diffusion , concentration gradient , field (mathematics) , diffusion equation , thermodynamics , mechanics , chemical physics , composite material , chemistry , physics , chromatography , meteorology , medicine , mathematics , economy , service (business) , pure mathematics , economics , physical therapy
Polymer migration in a flow field is a well‐known phenomenon, and it has been verified that the sources of such phenomena are nonhomogeneity of the flow field, concentration effects, and hydrodynamic interactions between the polymer molecules and walls. In this study, we investigate the temperature gradient effect on polymer dynamics due to an imposed flow field. The diffusion equation and concentration profile of the polymer molecules induced by a temperature gradient using a two‐bead dumbbell model are obtained from the Fokker‐Planck equation. From the concentration equation constructed for a dilute solution in a general flow geometry, we find that there are significant effects on the polymer migration not only due to the nonhomogeneity of the flow field, but also due to temperature gradients.