GPC测定SBR和PS的相对分子质量及其分布

Determination of relative molecular mass and its distribution in SBR and PS (HIPS) process by GPC

使用凝胶渗透色谱仪 (GPC)测定了丁苯橡胶 (SBR)及聚苯乙烯 (PS)和高冲聚苯乙烯 (HIPS)在不同生产工艺条件下的相对分子质量及其分布的变化。结果表明 :用相对分子质量及其分布数据可以直观地看到橡胶混炼与干燥工艺过程中的相对分子质量变化 ,也可以分析判断PS及HIPS生产工艺中出现的问题。

The variation of relative molecular mass and its distribution in the process of SBR and PS (HIPS) were determined by gel permeation chromatograph (GPC). The results showed that the change of relative molecular mass during milling and drying process was easily found with the data of relative molecular mass and distribution, and the problems in process of PS and HIPS could be found as well.