Molecular Design of Novel Discogen Possessing a Semi-Flexible Aryloxytriazine Core

摘要

Two compounds have been synthesized which exhibit a discotic mesophase. The molecule includes a semi-flexible tris(benzylidene oxyniline) triazine core flanked by just one alkyl substituent at the 4' position of each radial ring. An oxygen links the benzylidene aniline groups to the central triazine ring. Calorimetric measurements and polarizing microscopy observations show the existence of discotic mesophases. This appears to be the first example of a semi-flexible core with only minimal alkyl substituents which still produces a discotic liquid crystalline phase. Keywords: Discotic liquid crystalline polymers, Aryloxytriazine, Triazines. (mjm)