Abstract
Decomposition reactions of polystyrene and the mixture of polystyrene and phenol resin in 1-methylnaphthalene or, sub-or super-critical water were carried out. Thermal decomposition reactions of polystyrene to monomeric compounds such as styrene and toluene were observed in the reactions at over 350°C. Acceleration effects of polystyrene addition on the decomposition reaction of phenol resin molding materials were observed indicating the possibility that the reactive intermediates from polystyrene contributed to the decomposition reaction of phenol resin.
