辐照聚甲苯硫醚的研究

STUDY OF IRRADIATION POLYMETHYLPHENYLENE SULFIDE

用电子束在室温室气中对聚甲苯硫醚（ＰＭＰＳ）进行了辐照．用ＸＰＳ、ＩＲ、ＤＳＣ和ＴＧ对辐射交联及伴随的化学变化进行了表征．结果表明，ＰＭＰＳ的辐射交联发生在苯环上，ＸＰＳ能用于高聚物交联的表征．

he radiation-induced crosslinking and oxidation reaction when the polymethylphenylene sulfide (PMPS) is irradiated by the lelectron beam at R. T. in air are investigated by XPS, IR, DSC and TG. The radiation crosslinking take place on the benzene ring. The shake-up degree of the irradiated PMPS decreases due to the crosslinking. XPS can use to determine gelation dose of the polymer. The irradiated PMPS produces ph-SO-ph, ph-SO2-ph, -CO-and C-O-C groups.