Synthesis of Photoconducting Non-linear Optical Co-Polymer of 2-Methacryloyl-1-(4’-nitro-4-azo-1’Phenyl) Salicylic acid With Methylacrylate

The azo dye namely 4-nitro phenyl azo salicylic acid was synthesized and characterized by IR ,UV and NMR spectroscopy. The monomer was synthesized by the reaction of azo dye namely 4-nitrophenyl azo salicylic acid and methacryloyl chloride in the solvent medium of THF under reflux. Lastly the monomer 2methacryloyl-1(4’-nitro-4-azo-1’-phenyl)salicylic acid was co-polymerzed with methylacrylate in the solvent medium of DMF at 110 o c. All the monomers and co-polymer were characterized by IR,UV and NMR spectroscopy. The polymer has good photoconducting property. Moreover the non-lincar optical polymer can be used as photorefractive system.The polymer has good thermal stability indicating occurance of strong inter and intramolecular dipolar interactions Originated by the presence of high charge delocalization in the macromolecular side chain.