Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.269, 39-39, 1995
Liquid-Crystalline Main-Chain Polysiloxane Esters and Their Monomers .1. Synthesis of Some di(Omega-Unsaturated Esters) and Their Thermal-Behavior
As starting materials for liquid crystalline polyesters, a number of bis[4-(omega-alkenyloxybenzoyl)oxy]arenes (arising from the diols hydroquinone, 4,1’-biphenyldiol, 1,6-di(4-hydroxyphenyl)hexane, 2,7-fluorenediol and 2,7-fluorenonediol) have been synthesized and characterized by their elemental analyses, IR, H-1 NMR and MS. These esters exhibit liquid crystalline phases. The mainly nematic and in two cases also smectic phases have been studied by DSC and polarizing microscopy.