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Science 13 November 1992:
Vol. 258. no. 5085, pp. 1126 - 1129
DOI: 10.1126/science.258.5085.1126
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Articles

Complete Wetting from Polymer Mixtures

Ullrich Steiner 1, Jacob Klein 1, Erika Eiser 1, Andrzej Budkowski 1, and Lewis J. Fetters 2

1 Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel
2 Exxon Research and Engineering Corporation, Annandale, NJ 08801

Coexisting polymer phases are characterized by very small interfacial energies, even well below their critical solution temperature. This situation should readily lead to the exclusion of one of the phases from any interface that favors the other. Such complete wetting behavior from a binary mixture of statistical olefinic copolymers is reported. By means of a self-regulating geometry, it is found that the thickness of a wetting layer of one of the phases at the polymer-air interface, growing from the other coexisting phase, attains macroscopic dimensions, increasing logarithmically with time. These results indicate that binary polymer mixtures could be attractive models for the study of wetting phenomena.

Submitted on June 24, 1992
Accepted on September 3, 1992


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Molecular Dynamics of Adsorption and Segregation from an Alkane Mixture.
T. K. Xia and U. Landman (1993)
Science 261, 1310-1312
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Science. ISSN 0036-8075 (print), 1095-9203 (online)