Acta Phys. -Chim. Sin. ›› 2003, Vol. 19 ›› Issue (07): 654-656.doi: 10.3866/PKU.WHXB20030718

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

An Zeng-Jian;Zhou Peng;Jian Xi-Gao;Cai Tian-Xi   

  1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116012
  • Received:2002-12-05 Revised:2003-02-20 Published:2003-07-15
  • Contact: An Zeng-Jian

Abstract: 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 ℃ which was about 40 ℃ 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.

Key words: Sulfonated poly (phthalazinone ether sulfone ketone, S-PPESK),   Isobutene oligomerization, Thermal stability