Synthesize polytrimethyleneterephthalate with higher characteristic viscosity and nucleating agent.
采用具有较高特性黏度、含成核剂的聚对苯二甲酸丙二醇酯(PTT)。
2
By using the direct esterification polycondensation method synthesized polytrimethyleneterephthalate with higher characteristic viscosity and nucleating agent.