Investigations of Mixtures of Polar and Non-Polar Compounds with the A1 Smectic Phase

Binary mixtures composed of 8OBCAB with polarnTPCHB and nonpolar nMPCHB as well with nonpo-1ar A-n compounds have been investigated. It is shown that dimerization of 8OBCAB compound takes place only in polar matrix. Study of the effect of dilution of the polar matrix nTPCHB with a nonpolar component nMPCHB is shown that generation of smectic Ad is due to the application a matrix with a long aliphatic chain and not to the lowering of its polarity.