聚醚多元醇相对分子质量及其分布的测定

Determination of the Relative Molecular Mass and It's Distribution of Polyether Polyols

用凝胶渗透色谱 -宽分布标样校正法测定了聚醚多元醇相对分子质量及其分布 .以待测样品为标准 ,用宽分布校正法对相对分子质量与淋出体积之间的关系进行了校正 .本方法简便、快速、准确 ,误差在± 6

The relative molecular mass and distribution of polyether polyols has been determined by gel permeation chromatography combining with the calibration of broaddistribution.The calibration of broaddistribution compared to the univervsal calibration method is quite simple and repeartable.The accuracy of method is better than ±6%.