Styrene was r EK:overed trom polystyrene (molecular weight of 138 OO~) by thermolysis in a nitrog,en atmosphem .at templ3ratures between 368°C and 407°C. The' results wc~n9 inaepElndent of thE~ initial weight of polystyrene which was varied between ~30 and 480 grar~s. Up to 70% of the polystyrene was converted to styrene. The styrene yield increased with temp€;'rature. At higher temperatures, the residue left il1 thE! reactor Gonsisted mainly of styrene monomer, dimer and trimer (MW of 190). The maximum rate constant of volatile production was found to fit a first order modal. The activation energy obtained was 166.5 kJ/mol, which is in accordanco with literature values .•
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