Abstract: A series of PPV ramification containing side chain OXD（E_n） was synthesized from ″functional assemblies″. Electrical and optical properties of these small compounds were determined by DSC, polarized optical microscope（POM）,UV absorption spectrum, electrochemical measurement and manufacturing multi-layers device. It is found that these small compounds behave as liquid crystal, possess electron and hole transmission, luminescence and other attractive properties. It’s a kind of attractive organic electroluminescent compounds. Our multi-layers EL device with R-OXD （E_n） layer begin to emit light at below 3V and a luminance level of 1000 cd·m^-2 can be obtained at 7V.