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6609849 
Journal Article 
Effect of Variation of Molecular Weight for the Pyrolysis of Polystyrene 
Kim, SB; Lee, SB; Jae, CM; 김유미; 윤병태 
2003 
41 
3 
377-381 
KJD:ART001023825 
Oil formation rate, composition of crude oil and formation of side products such as a-methyl styrene, ethyl ben-zene, benzene, toluene, dimer and trimer on thermal degradation of polystyrene were affected by various factors. Especially,melting temperature and melting time gave an important influence on formation of oil and composition of crude oil. Also, com-position of formed crude oil showed a siginificant diference on reaction time. These results were caused by changes of aver-age molecular weight of degraded polystyrene. Decrease of molecular weight by cracking gave a decrease of yield of styreneand an increase of formation of a-methyl styrene, ethyl benzene, benzene, toluene. Reaction kinetic study and degradationmechanism to styrene on polystyrene were also briefly discussed.