RI／VI联用测定窄分布PS的K、α值

Determining K, α Values of Narrow Broad PS Using Double Detectors RI/VI

采用示差折光指数检测器/毛细管粘度检测器(RI/VI)双检测联用技术测定了窄分布的不同分子量大小的聚苯乙烯，得到了聚苯乙烯在150℃吋，以1，2，4-三氯苯为溶剂的Mark-Houwink方程的参数K、α值。该方法简便、快速，并得到了验证。

Double detectors of refractive index/capillary viscometer （RI/VI） were used to determine the narrow broad PS of different molecular weight. The parameters K, α of Mark-Houwink equation for PS were obtained at 150 ℃ in 1,2,4-trichlorobenzene solvent. This method was fast and convenient, and had been verified to be effective.