F. Diaz et al., SYNTHESIS AND CHARACTERIZATION OF TWIN MESOGENS CONTAINING SILOXANE UNITS AS CENTRAL SPACERS, Liquid crystals, 16(1), 1994, pp. 105-113
A mesogenic ester, 4-hexyloxyphenyl 4-vinyl benzoate was synthesized a
nd studied. The synthesis and characterization of bimesogenic molecule
s employing this ester with oligosiloxane spacers of different lengths
are described. The compounds were characterized by IR H-1 NMR, elemen
tal and thermal analysis, and polarized light microscopy.