The purification of commercial PPS was conducted with the mixture of PEG and NMP.The results showed that the impurities contained in PPS can be eliminated effectively in high temperature.

• 摘要在高温下，用N-甲基吡咯烷酮(NMP)与聚乙二醇(PEG)组成的混合试剂对商品PPS树脂进行纯化处理。