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本工作采用高压液相色谱法测定端羟基聚丁二烯(HTPB)的官能度分布.将3,5-二硝基苯甲酰氯(DNBC)在一定条件下,进行衍生化反应.衍生化后的 HTPB 经高压液相色谱仪的紫外(UV)和方差(RI)双检测器进行检测。所得色谱图经数据处理,并分区统计组合,得到 HTPB的羟基官能团随分子量的分布,同时得到相应的数均分子量、重均分子量、分子量分散指数、数均官能度、重均官能度及官能度分散指数.
In this work, the functional distribution of hydroxyl-terminated polybutadiene (HTPB) was determined by HPLC.The derivatization of 3,5-dinitrobenzoyl chloride (DNBC) under certain conditions was carried out.After derivatisation HTPB was detected by dual-detector UV and Variance (RI) of a high-pressure liquid chromatograph. The resulting chromatograms were data-processed and partitioned into statistical combinations to obtain the distribution of hydroxyl functional groups of HTPB with the molecular weight and the corresponding number average molecular weight, weight average molecular weight, molecular weight distribution index, number average functionality, weight average functionality and functionality Dispersion index.