Mutual diffusion in blends of long and short entangled polymer chains
Jordan, E. A. (Elizabeth A.), Ball, R. C., Donald, A. M. (Athene Margaret), 1953-, Fetters, Lewis J., Jones, Richard A. L. (Richard Anthony Lewis), 1961- and Klein, Jacob. (1988) Mutual diffusion in blends of long and short entangled polymer chains. Macromolecules, Vol.21 (No.1). pp. 235-239. ISSN 0024-9297Full text not available from this repository.
Official URL: http://dx.doi.org/10.1021/ma00179a045
We have used infrared microdensitometry to study the mutual diffusion across an originally sharp interface between two saturated polybutadienes of degrees of polymerization NA and N B (>>Ne, the entanglement length) for three different ratios N A / N B . The extent of diffusion broadening suggests that the mutual diffusion coefficient is controlled by the mobility of the faster moving (shorter) polymer chains, indicating that convective flow may be important in such mixing phenomena.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics
Q Science > QD Chemistry
|Divisions:||Faculty of Science > Physics|
|Library of Congress Subject Headings (LCSH):||Polymers, Diffusion, Surfaces (Physics), Interfaces (Physical sciences), Polymer melting|
|Journal or Publication Title:||Macromolecules|
|Publisher:||American Chemical Society|
|Page Range:||pp. 235-239|
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