粘度法测定聚对苯二甲酸丙二酯分子质量的研究

Viscometry of molecular mass of polytrimethylene terephthalate

采用外推法和一点法测定PTT特性粘度 ,结果表明采用一点法操作较简单 ,并拟合出重均分子质量与特性粘度之间关系式。

Intrinsic viscosity of polytrimethylene terephthalate was determined by extrapolation and one point method.The results showed that one point method operated simply can be used.The correlation between weight average molecular mass and intrinsic viscosity was established.