Skip to main content
Log in

Dimerization of α-methylstyrene over Nafion/silica composite catalysts

  • Published:
Catalysis Letters Aims and scope Submit manuscript

Abstract

The dimerization of α-methylstyrene (AMS) 1 over highly dispersed strongly acidic ion exchange resins based on Nafion and entrapped in a porous silica matrix has been investigated in the continuous liquid phase. Over these new catalysts the dimerization rate is independent of the choice of solvent, which highlights the increased accessibility of the acid sites. Depending upon the reaction conditions different dimerization products are obtained. Complete conversion is achieved even at very high space velocities.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. G.A. Olah, P.S. Iyer and G.K.S. Prakash, Synthesis (1986) 513.

  2. F.J. Waller and R.W. van Scoyoc, ChemTech (1987) 438.

  3. G.A. Olah, R. Malhotra, S.C. Narang and J.A. Olah, Synthesis (1978) 672.

  4. H. Konishi, K. Suetsugu, T. Okana and J. Kiji, Bull. Chem. Soc. Jpn. 55 (1982) 957.

    Article  CAS  Google Scholar 

  5. T.D. Gierke, G.E. Munn and F.C. Wilson, J. Polym. Sci. Polym. Phys. 19 (1981) 1687.

    Article  CAS  Google Scholar 

  6. M.A Harmer, W.E. Farneth and Q. Sun, J. Am. Chem. Soc. 118 (1996) 7708.

    Article  CAS  Google Scholar 

  7. Q. Sun, M.A. Harmer and W.E. Farneth, J. Chem. Soc. Chem. Commun. (1996) 1201.

  8. H. Nishizawa, T. Saito, T. Itoh and K. Mashita, EP 0 641 756 (1994).

  9. B. Chaudhuri and M.M. Sharma, Ind. Eng. Chem. Res. 28 (1989) 1757.

    Article  CAS  Google Scholar 

  10. M. Inaba, S. Inui, H. Kurokawa and F. Mizutani, EP 0644 169 (1994).

  11. R. Thome, A. Ti_ler, B. Unger and G. Öhlmann, DE 43 31 116 (1995).

  12. Q. Sun, M.A. Harmer and W.E. Farneth, J. Catal. 164 (1996) 62.

    Article  CAS  Google Scholar 

  13. K.J. Ivin, Angew. Chem. 85 (1973) 533.

    CAS  Google Scholar 

Download references

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Heidekum, A., Harmer, M. & Hölderich, W. Dimerization of α-methylstyrene over Nafion/silica composite catalysts. Catalysis Letters 47, 243–246 (1997). https://doi.org/10.1023/A:1019089928990

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1019089928990

Keywords

Navigation