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Mutual diffusion in blends of long and short entangled polymer chains
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Jordan, E. A., Ball, Robin, Donald, A. M., Fetters, Lewis J., Jones, Richard A. L. and Klein, Jacob (1988) Mutual diffusion in blends of long and short entangled polymer chains. Macromolecules, Vol.21 (No.1). pp. 235-239. doi:10.1021/ma00179a045
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Official URL: http://dx.doi.org/10.1021/ma00179a045
Abstract
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 |
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| 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 | ||||
| ISSN: | 0024-9297 | ||||
| Official Date: | January 1988 | ||||
| Dates: |
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| Volume: | Vol.21 | ||||
| Number: | No.1 | ||||
| Page Range: | pp. 235-239 | ||||
| DOI: | 10.1021/ma00179a045 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published |
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