Wetting of Substrates with Phase-Separated Binary Polymer Mixtures

Jan Genzer and Edward J. Kramer
Phys. Rev. Lett. 78, 4946 – Published 30 June 1997
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Abstract

We investigate a wetting reversal transition in thin films of two-phase mixtures of poly(ethylene-propylene) (PEP) and its deuterated analog (dPEP) on substrates covered by self-assembled monolayers (SAM) whose surface energy, γSAM, is tuned by varying the SAM composition. As γSAM increases from 21 to 24mJ/m2, a transition from a dPEP/PEP/dPEP/SAM to a dPEP/PEP/SAM structure occurs at increasing TCT, where TC and T are the critical and transition temperatures, respectively. The dependence of T on γSAM is predicted by a simple model from surface and interfacial energies of PEP/dPEP.

  • Received 10 March 1997

DOI:https://doi.org/10.1103/PhysRevLett.78.4946

©1997 American Physical Society

Authors & Affiliations

Jan Genzer and Edward J. Kramer

  • Department of Materials Science and Engineering and the Materials Science Center, Cornell University, Ithaca, New York 14853-1501

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Issue

Vol. 78, Iss. 26 — 30 June 1997

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