Journal of Porous Materials

, Volume 23, Issue 2, pp 339–348 | Cite as

Structural characterization of octadecyl modified MCM-41 silica by NMR and FTIR

  • Tahira Yasmin
  • Klaus Müller


Mesoporous MCM-41 silica spheres were prepared via the pseudomorphic route, using commercial prontosil silica spheres. Surface modification offers a great opportunity to adjust both the pore structure and surface properties of MCM-41 type materials which results in materials of improved hydrothermal and mechanical stability to make them promising candidates for chromatographic applications. In the present context, the obtained MCM-41 silica spheres were surface modified with octadecyl (C18) alkyl chains, by using direct grafting and surface polymerization methods, in order to vary the degree of surface hydrophobicity. The resulting materials were characterized before and after surface modification using various characterization techniques, with special emphasis on NMR and FTIR spectroscopies, for studying the attachment, mobility and the conformational order of the attached alkyl chains.


MCM-41 Surface modification Spectroscopy 



The authors would like to thank Professor Dr. E. Roduner and Dr. A. Fels for the access to the BET and SEM instruments as well as Professor Dr. F. Gieβelmann for XRD measurements.


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Institut für Physikalische ChemieUniversität StuttgartStuttgartGermany
  2. 2.Dipartimento di Ingegneria dei Materiali e Tecnologie Industriali, INSTM, UdR TrentoUniversitá degli Studi di TrentoTrentoItaly

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