FRACTIONATION OF ISOTACTIC POLYSTYRENE
等规聚苯乙烯的分子量分级

Fractionation of isotactic polystyrene based on phase equilibrium was preformed by using o-dimethylphthalate (DMP) as a solvent and cyclohexanol (CHA) as a nonsolvent. Fractionation with semi-preparative GPC was also preformed. The effect of fractionation based on phase equilibrium is limited, but the result obtained from semi-preparative GPC is quite well.