Blends in Two Dimensions: Mixtures of a Ferroelectric Liquid-Crystalline Copolymer with Its Side-Chain Monomer at the Air-Water Interface

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In an attempt to adjust the lateral density of monolayer and multilayer films of a ferroelectric liquid crystalline copolymer, blends of the copolymer were made with the corresponding mesogenic monomer unit. The monomer was chosen as the second component since it forms monolayer films which are more condensed than the copolymer and because of its miscibility with the structurally similar copolymer. Analysis of the interaction between the molecules of the mixed monolayers included Π-area isothermal data, calculation of the excess ΔGmix, thermal dependence of isotherms, and Brewster angle microscopy. On the basis of these results, the films appear to be completely miscible over all conditions presented and the blend monolayer films are more condensed than the pure copolymer films. © 1994, American Chemical Society. All rights reserved.

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