中华医学超声杂志

应用化学 ›› 1984, Vol. 0 ›› Issue (3): 34-40.

• 研究论文 • 上一篇    下一篇

高聚物表征中凝胶色谱与自动粘度计的联用技术

金春山, 孙淑莲, 王凤毓, 孙文明, 余赋生   

  1. 中国科学院长春应用化学研究所
  • 收稿日期:1984-02-08 修回日期:1984-04-28 出版日期:1984-09-10 发布日期:1984-09-10

ON THE THCHNIQUE OF GPC COUPLING WITH AUTOMATIC CAPILARY VISCOMETER IN POLYMER CHARACTERIZATION

Jin Chunshan, Sun Sulan, Wanug Fengyu, Sun wenming, Yu Fusheng   

  1. Changchun Institute of Applied Chemistry, Academia sinica
  • Received:1984-02-08 Revised:1984-04-28 Published:1984-09-10 Online:1984-09-10

PDF

428

被引次数

12

摘要： 就凝胶色谱(GPC)与自动粘度计联用技术而言,在实验上必须注意严格控制温度及避免粘度计器壁效应。在处理数据时应考虑浓度检测器和粮度计之间的连结管道死体积△V和虹吸管残留液的影响。另外如以(ηr-1)/C计算各级分的特性粘数时由于各级分的聚合物浓度不同将引进不同程度的误差。我们用一点法公式计算每级分粘度避免了这种误差。

Abstract: The GPC coupling with an automatic capilary viscometer and its application to polymer characterization were described in this paper with particular emphasis on the effects of temperature controlling and wall flow during the measurement. In order to calculate the intrinsic viscosity the following relation has been used:<[η]>∑Wi[ηi] where [ηi] is the viscosity of eluted volume Vi.

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