FTIR STUDY FOR STRUCTURAL PATTERN CHANGES DUE TO IRRADIATION IN PE-PP BLOCK COPOLYMER

In the present investigation, the FTIR has been used as a structural pattern recognition tool to study the effect ofgamma irradiation on the PE-PP block copolymer. The polymer has been subjected to gamma irradiation from 100 to 500Mrad dosages. Characterization of the polymer using XRD and FTIR was done both before irradiation and after irradiation ineach step. FTIR study shows that the sample loses C – C stretching mode of vibration and gains C=C stretching mode ofvibration after irradiation.