Interaction between plates in a polymer melt

The effect of confining a polymer melt between two parallel plates has been investigated using Monte Carlo simulations. As soon as the distance between the plates becomes comparable to twice the radius of gyration of the polymer molecules in the bulk, the shape of all molecules is affected. Reducing...

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Published in:The Journal of chemical physics 1988-10, Vol.89 (7), p.4374-4380
Main Authors: TEN BRINKE, G, AUSSERRE, D, HADZIIOANNOU, G
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
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description The effect of confining a polymer melt between two parallel plates has been investigated using Monte Carlo simulations. As soon as the distance between the plates becomes comparable to twice the radius of gyration of the polymer molecules in the bulk, the shape of all molecules is affected. Reducing the separation even more reduces the actual number of deformed molecules while the remaining molecules become on the average more deformed. The deformation of the molecules is due to those sections which are very near one of the two plates. The excess number of bonds parallel to the plates with respect to the bulk isotropic contribution is nearly independent of the distance between the plates. The correlation length is estimated to be of the order of the lattice spacing. All observations are in agreement with the predictions of de Gennes that no long-range force between plates in a melt should exist.
doi_str_mv 10.1063/1.454823
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source American Institute of Physics (AIP) Publications
subjects Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
title Interaction between plates in a polymer melt
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