TY - JOUR AU - Silong, Sidik AU - Salisu, Abdulsalam Abubakar AU - Rahman, Muhamad Zaki Ab AU - Rahman, Lutfor AU - Ahmad, Mansor PY - 2009 TI - Nematic and Smectic Mesophase from Calamitic Bisazobenzene Liquid Crystal: Synthesis and Characterization of 1- Methoxyhexyloxy-4'-(4-Phenylazo) Azobenzene Hybrid Molecule JF - American Journal of Applied Sciences VL - 6 IS - 4 DO - 10.3844/ajassp.2009.561.564 UR - https://thescipub.com/abstract/ajassp.2009.561.564 AB - A new hybrid calamitic liquid crystal material with rod-shape bisazobenzene moieties as a core has been synthesized and characterized by spectroscopic methods. The mesomorphic properties were investigated by differential scanning colorimetry, polarizing optical microscopy and X-Ray diffraction. The rod-shaped molecule 1- methoxyhexyloxy-4`-(4-phenylazo)azobenzene was prepared by diazotization of 4-phenylazoaniline, coupling with phenol and subsequent etherification of 1-Bromohexyloxy-4`-(4-phenylazo)azobenzene in methanol. The presence of enantiotropic nematic and smectic A mesophases were confirmed by the textures and X-Ray diffraction.