Compositional and Orientational Ordering in Rod−Coil Diblock Copolymer Melts
نویسندگان
چکیده
منابع مشابه
Compositional and orientational ordering in rod - coil diblock copolymer melts
The phase behavior of a melt of monodisperse rod-coil diblocks is studied. We derive a Landau free energy functional for both a compositional and a nematic order parameter. The excluded volume interaction between the rod blocks is modeled by an attractive Maier-Saupe interaction. The incompatibility between rodand coil blocks is modeled by the usual Flory-Huggins interaction. For large volume f...
متن کاملCompositional and orientational ordering in rod - coil diblock
The phase behavior of a melt of monodisperse rod-coil diblocks is studied. We derive a Landau free energy functional for both a compositional and a nematic order parameter. The excluded volume interaction between the rod blocks is modeled by an attractive Maier-Saupe interaction. The incompatibility between rodand coil blocks is modeled by the usual Flory-Huggins interaction. For a large volume...
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We study the evolution of diblock copolymer melts in which one component has small volume fraction. In this case one observes phase morphologies which consist of small spheres of the minority component embedded in the other component. Based on the Ohta-Kawasaki free energy one can set up an evolution equation which has the interpretation of a gradient flow. We restrict this gradient flow to mor...
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ژورنال
عنوان ژورنال: Macromolecules
سال: 2002
ISSN: 0024-9297,1520-5835
DOI: 10.1021/ma011777v