Wetting of Substrates with Phase-Separated Binary Polymer Mixtures
نویسندگان
چکیده
We investigate a wetting reversal transition in thin films of two-phase mixtures of poly(ethylenepropylene) (PEP) and its deuterated analog (dPEP) on substrates covered by self-assembled monolayers (SAM) whose surface energy, gSAM, is tuned by varying the SAM composition. As gSAM increases from 21 to 24 mJ m2, a transition from a dPEP PEP dPEP SAM to a dPEP PEP SAM structure occurs at increasing TC 2 T , where TC and T are the critical and transition temperatures, respectively. The dependence of T on gSAM is predicted by a simple model from surface and interfacial energies of PEP dPEP. [S0031-9007(97)03445-5]
منابع مشابه
Pretransitional thinning of a polymer wetting layer
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