This study was caried out to have a systematic knowledge of the polystyrene absorbance (M.Wt: 100000) with respect to temperature, concentrations and solvent. A wide range of concentration wm selected for these studies and four different solvents i.e.; 1,2-dichloroethane, ethylaccetate carbontetrachoride and cyclohaxane were employed for this work. The absorption spectra of polystyrene were measured in these four solvents at different temperatures of 10' C, 20° C, 30° C, 40' C, 50° C and 60° C. The effect of concentration, temperature and solvent was determined.
Y IQBAL ,S A KHAN ,W KHAN ,M S SHAH ,
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