Casimir Force in Confined Polymer Blends or Ternary Polymer Solutions
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| Format: | Artículo científico |
| Language: | en |
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Sociedade Brasileira de Física
2006
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| _version_ | 1866558136908775424 |
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| author | M. Benhamou |
| author_facet | M. Benhamou |
| contents | Casimir Force in Confined Polymer Blends or Ternary Polymer Solutions M. Benhamou M. El Yaznasni H. Ridouane E.-K. Hachem Física, Astronomía y Matemáticas Confinement Casimir Forces Polymer mixtures This paper is devoted to a review of recent progresses concerning the computation of the Casimir forcebetween two parallel plates delimitating a polymer blend or a ternary polymer solution (with a good solvent).We assume that, close to the consolute point, one or the two polymers of the mixture are strongly attracted by theplates (critical adsorption). For both systems, the induced force originates from the fluctuations of compositionnear the consolute point. In polymer blends case, it was found that the force decreases with separation L betweenthe two plates as L−4, with a known universal amplitude. For ternary polymer solutions, however, it has beenshown that the interaction force decays rather as L−3. This drastic change of the force expression is due tothe presence of the good solvent, which gives rise to additional fluctuations of polymer concentration. To docalculations, for the two systems, use is made of the standard ϕ4-theory, where the field ϕ is the order parameteror composition fluctuation. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46436634 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4A Vol.36 |
| format | Artículo científico |
| id | redalyc_46436634 |
| language | en |
| publishDate | 2006 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Casimir Force in Confined Polymer Blends or Ternary Polymer Solutions M. Benhamou Física, Astronomía y Matemáticas Confinement Casimir Forces Polymer mixtures Casimir Force in Confined Polymer Blends or Ternary Polymer Solutions M. Benhamou M. El Yaznasni H. Ridouane E.-K. Hachem Física, Astronomía y Matemáticas Confinement Casimir Forces Polymer mixtures This paper is devoted to a review of recent progresses concerning the computation of the Casimir forcebetween two parallel plates delimitating a polymer blend or a ternary polymer solution (with a good solvent).We assume that, close to the consolute point, one or the two polymers of the mixture are strongly attracted by theplates (critical adsorption). For both systems, the induced force originates from the fluctuations of compositionnear the consolute point. In polymer blends case, it was found that the force decreases with separation L betweenthe two plates as L−4, with a known universal amplitude. For ternary polymer solutions, however, it has beenshown that the interaction force decays rather as L−3. This drastic change of the force expression is due tothe presence of the good solvent, which gives rise to additional fluctuations of polymer concentration. To docalculations, for the two systems, use is made of the standard ϕ4-theory, where the field ϕ is the order parameteror composition fluctuation. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46436634 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4A Vol.36 |
| title | Casimir Force in Confined Polymer Blends or Ternary Polymer Solutions |
| topic | Física, Astronomía y Matemáticas Confinement Casimir Forces Polymer mixtures |
| url | https://www.redalyc.org/articulo.oa?id=46436634 |