热稳定性能良好的磺化聚醚砜酮催化剂

Sulfonated Poly (phthalazinone ether sulfone ketone) Catalyst with High Thermal Stability

采用磺酸化的方法制备了一种热稳定性能良好的新型固体酸树脂催化剂———磺化聚醚砜酮树脂(S-PPESK),并应用在异丁烯的低聚反应中.S-PPESK在较低的温度条件下对异丁烯的低聚反应表现出了很高的催化活性和二聚反应选择性.对S-PPESK的热稳定性能采用预处理的方法进行了测试,结果显示它的预处理温度高达180℃,与商业磺酸树脂的预处理温度相比高出约40℃.S-PPESK在异丁烯的低聚反应中表现出了良好的催化活性、优良的二聚反应选择性和很好的热稳定性能,其应用前景广泛.

A new solid acid resin catalyst with high thermal stability-sulfonated poly (phthalazinone ether sulfone ketone) (S-PPESK) resin was prepared through sulfonation method and applied to isobutene oligomerization. S-PPESK showed high catalytic activity and excellent dimerization selectivity under low reaction temperature conditions. The thermal stability of S-PPESK was measured by pretreatment method, the pretreatment temperature was 180 degreesC which was about 40 degreesC higher than that for with commercial sulphuric acid resin catalyst. S-PPESK exhibits good catalytic activity, excellent dimerization selectivity and high thermal stability in isobutene oligomerization. It is a promising resin catalyst.