Fl�ssigkristalline asymmetrische Bisphenyl-4,4?-bibenzyldicarboxylate und Polysiloxane mit Bisphenyl-4,4?-bibenzyldicarboxylat-Bausteinen in den Seitenketten, Synthese und Charakterisierung [1, 2]

Abstract

Liquid Crystalline Asymmetric Bisphenyl‐4,4′‐bibenzyldicarboxylates and Polysiloxanes with Bisphenyl‐4,4′‐bibenzyldicarboxylat Components in the Side Chains, Synthesis and Characterisation [1, 2] Asymmetric bisphenyl bibenzyl‐4,4′‐dicarboxylates with an alkenyloxy‐ or the 10‐undecenoylgroup in the p‐position of one terminal benzene ring and the butyl‐, an alkoxy‐ or the thiomethylgroup in the p‐position of the other terminal benzene ring (12–14) are synthesized. The olefins 12–14 are added to a poly(methylhydrogensiloxane) 15 to give mesomorphic side chain polysiloxanes 16–18. Data of liquid crystalline properties of 12–14, 16–18 and precursors are discussed.