Investigation of mixed liquid crystal polymeric solutions

Liquid crystal solutions. Ternary systems involving a nematogenic and a non-nematogenic polymer

“…The width of this region is greater than for monodisperse systems and the anisotropic phase is richer in the high molecular weight polymer than the isotropic one. Volchek et al 18 and Aharoni19 investigated mixtures of two chemically different rodlike polymers in a common solvent and confirmed that the well-known compatibility principle is verified. In fact, at high enough polymer concentration the two polymers entered a single anisotropic phase.…”

Infrared study of molecular aggregation in the poly(.alpha.-benzyl L-glutamate)/benzyl alcohol system

“…Several previous studies give an indication of the probable size of elementary fibrils. Volchek et al 50 studied the phase diagram of PBLG in several solvents and calculated the effective asymmetry, which was slightly smaller than that expected for individual polymer rods, from Flory's theory. Differences between theory and experiment were reduced by addition of the disaggregating agent trifluoroacetic acid, implying the presence of small molecular clusters.…”

Spectroscopic Investigation of Polypeptide Plane Brushes

“…The degree of homeotropic orientation was determined according to formula (1): [11] ðA AMII =A AMA Þ order Á 1:5 S sin 2 u AMA þ ð1ÀSÞ…”