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凝胶色谱法的普适标定问题及其应用

THE UNIVERSAL CALIBRATION IN GEL PERMEATION CHROMATOGRAPHY AND ITS APPLICATIONS

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【作者】 赵择卿

【Author】 Zhao Zeqing

【机构】 华东纺织工学院物理化学教研室

【摘要】 本文在实验基础上,用许多事实说明:只要选择适当的溶剂及选用正确的Mark-Houwink公式,原则上,所有高聚物都可应用普适标定。应用普适标定关系,可以计算Mark-Houwink公式中的常数K和a、估算高聚物分子在稀溶液中的形态和分子尺寸参数以及测定支化高聚物的支化度。

【Abstract】 It has been proved experimentally in several cases in our laboratory that the universal calibration in GPC is,in principle,suitable for all species of polymers if the proper solvents and the correct Mark-Houwink equation are used.This paper deseribes,among other things,application of universal calibration in the calculation of the constants κ and α in Mark-Houwink equation in the estimation of the shape and size parameters of polymer molecules in dilute solutions and in the determination of the degree of branching of branched polymers.

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