Phase diagrams of mixtures of flexible polymers and nematic liquid crystals in a field
نویسندگان
چکیده
The Flory-Huggins theory of flexible polymers mixtures @P. J. Flory, Principles of Polymer Chemistry ~Cornell University Press, Ithaca, 1953!# and the Lebwohl-Lasher model of nematogens @G. Lasher, Phys. Rev. A 5, 1350 ~1972!; P. A. Lebwohl and G. Lasher, ibid. 6, 426 ~1972!# are combined to understand the phase behaviors of mixtures of flexible polymers ~coils! and small molecular liquid crystals in an external magnetic field. It is found that, due to the field-induced ordering, the phase boundaries shift upwards and the paranematic spinodal regions are narrowed near the paranematic-nematic transition lines; however, the nematic spinodal regions are enlarged. @S1063-651X~98!13110-0#
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