Wanniarachchi,J. DPrashantha,M. A. BKarunarathna,B. S. W2025-03-032025-03-032022-06https://dr.ichemc.ac.lk/handle/123456789/382Abstract No: TC 31 Page 46-47The studies on the pyrolysis processes aid the development and use of pyrolysis technology for waste plastics. The present study investigated the thermal decomposition mechanism of the tetramer model compound of polystyrene by employing the density functional theory method at B3LYP/6-31G (d) level of theory.enpolystyrenedensity functional theorythermal degradationbond dissociation energypyrolysisArticle