Polymerizations in liquid crystals—II [1] copolymerization of P-methyl-P-acryloyloxy-azoxybenzene and cholesteryl vinyl succinate in the meso phase

Study of Phase-Diagram and Copolymerization of p-Ethoxy-p′-acryloyloxy-azobeiizene with Cholesteryl Acrylate

“…8 • 10 • 25 • 2 6 EOA content of copolymer products are plotted against the initial EOA comonomer content in Figure 12. In contrast to the MAAB/CVS copolymers studied previously, 8 the present processes are different in the isotropic and cholesteric phases. Copolymerization constants were calculated by linearization of differential concentrations, using the method of Finemann and Ross 28 modified by Ti.idos and Kelen 27 as shown in Figure 13.…”

“…From pmethyl-p-acryloyloxyazoxybenzene (MAAB) and cholesterylvinyl succinate (CVS), identical copolymer compositions were obtained both in the cholesteric and in the isotropic liquid states. 8 Melting points of the copolymers gave minimum in a certain range of the composition. Homopolymers of MAAB and CVS were found nematic 9 and smectic, 10 respectively.…”

Polymerization in liquid crystals. XIII. Copolymerization of mesogenic monomers

“…As shown in Figure 9, the clearing temperature of the copolymers decreases by increasing comonomer content to level off at a certain value. Similar effects were observed in other cases too (38). In the cholesteryl vinyl succinate-pmethyl-p-acryloxyazoxybenzene system the extremely low r value (r^= 0.01) itself shows microblock structure of the copolymer.…”

“…Although the properties of the copolymers formed depend on their composition in most of the publications, with some exceptions (25,38), the composition of the copolymers is not determined. The properties (e.g., Tm) of the copolymers are usually presented as a function of the composition of the initial monomeric mixture (31,35,45).…”

Phase Behavior of Liquid Crystalline Polymer/Model Compound Mixtures: Theory and Experiment

“…The phase behavior of LCP solutions depends on several factors, including chemical and conformational compatibility, and molecular weight.7 '9 There have been several miscibility studies of side-chain liquid crystalline polymers with low molecular weight nematics. [10][11][12][13][14] Here, we focus on the phase behavior of main-chain liquid crystalline polymers in low molecular weight solvents of either nematic or isotropic character. Our approach is novel because it combines synthesis, experiment, and theory to study the influence of solvent molecular weight and mesogenic character on the phase behavior of LCP solutions.…”