The side chain liquid crystalline polymers were prepared by a self assembly process using 4 (4' nitrophenylazo) phenol or 4 (4' methoxyphenylazo) phenol as hydrogen bond donors and poly(4 vinylpyridine co butyl acrylate) as the acceptor.The hydrogen bond association was confirmed by FTIR.While some dissociation occurs at the isotropic temperature

the complete dissociation needed much higher temperature.The hydrogen bonding was restored as the complex was cooled to room temperature again.The nematic liquid crystallinity of the polymer complex was shown by WXRF and FOM.