用光散射法表征共聚物w、P、Q参数准确性的探讨

EXAMINE OF ACCURACY IN CHARACTERIZATION OF MOLECULAR WEIGHT AND PARAMETERS P, Q OF COPOLYMERS BY LIGHT SCATTERING

本文对用光散射法确定各种类型共聚物的_W和P,Q参数的几种计算方法进行了讨论。介绍了一种可以准确确定共聚物真实分子量和不均匀参数P和Q的抛物线方程的计算方法。指出光散射法可较准确地测定共聚物的_W和Q,P,但需要用实验给以证明。另外,对影响结果准确性的原因进行了初步的探讨。

The sensitivity of the light scattering method for the determination of the composition heterogeneity of copolymers is discussed in terms of the accuracy of measurements of the intensity of scattered light.In this report will present a new method dealing with accurate fitting a parabola equation. This method will prove to be more valid for estimation molecular weight and heterogeneity parameters of copolymers. We can try and explain effect factors in accuracy of the results.