Interdiffusion in a polystyrene-poly(vinyl methyl ether) system

Interdiffusion in polystyrene-poly(vinyl methyl ether) systems is studied by optical-interferometry method in wide temperature and concentration ranges. For these systems, temperature-concentration dependences are constructed, activation energies are calculated, and dependences of the diffusion coef...

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Bibliographic Details
Published in:Polymer science. Series A, Chemistry, physics Chemistry, physics, 2011-09, Vol.53 (9), p.811-819
Main Authors: Chalykh, A. E., Nikulova, U. V.
Format: Article
Language:English
Subjects:
Activation energy
Chemistry
Chemistry and Materials Science
Construction
Diffusion coefficient
Ethers
Interdiffusion
Mathematical analysis
Phase diagrams
Polymer Blends
Polymer Sciences
Polystyrene resins
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Summary:Interdiffusion in polystyrene-poly(vinyl methyl ether) systems is studied by optical-interferometry method in wide temperature and concentration ranges. For these systems, temperature-concentration dependences are constructed, activation energies are calculated, and dependences of the diffusion coefficient on the molecular mass of polystyrene are examined. The results are compared with the phase diagrams of the systems, and it is shown that the diffusion coefficient decreases as the binodal curve is approached, thereby leading to corresponding changes in the Arrhenius coordinates.
ISSN:0965-545X
1555-6107
DOI:10.1134/S0965545X11090021