摘要
本文提出一个极为简便的测算聚合物溶液特性粘数的新公式: [η]=1/(2C)(η_(?P)+1nη_γ)用此新公式,只需测定聚合物试样溶液的一个相对粘度值,即可直接求得其特性粘数。依据所选聚合物试样溶液的粘度测定值,用此新方法所得结果与稀释外推法和惯用的Maron和Solomon—Ciuta单点法所得[η]值比较,此新方法不仅使用简便,应用范围广,而且测定的精度高,具有较大的实用价值。
This Paper presents a very simple and convenient new equation for determining the intrinsic viscosity [η] of polymer solu-tion: [η]=1/2c(η_(?p)+lnη_γ) The equation only determines one relative viscosity of polymer sample solution, so it can directly obtain the intrinsic vis-cosity of the polymer. When compared with the dilution extrapolation method and the conventional single-point methodthrough determination of the viscosity of the chosen polymer sample solution, the new method offers not only simple and conve-nient application, but also hixgher precision with broader applied values.
出处
《塑料工业》
CAS
CSCD
北大核心
1990年第2期51-54,共4页
China Plastics Industry
