Abstract: A new kind of disc-shaped compounds with 1,3,5-triazine core,three conjugated Schiff-base arm and nine alkoxyl chain at the periphery have been synthesized.The mesomorphic properties of such compounds were investigated by polarising optical microscopy(POM),differential scanning calorimetry(DSC) and materials studio(MS).The influence of the length of alkyl chain and the conjugated arms as well as the polarity of the linking groups on the mesomorphic properties was studied.Such compounds represented room temperature columnar mesophases.Elongation of the alkyl chain,the range of the columnar mesophase was increased.Replacing the polar ester group with ether group and reduction the conjugated arms leads to the decreasing of the melting points and enlarging the mesophase ranges.Such compounds could be applied as potential electron-transporting semiconductors as indicated by measuring results of UV,PL and CV.