Comparison of bridged polysilsesquioxane xerogels prepared from methoxy- and ethoxy-silyl monomers

Douglas A Loy, Brigitta M. Baugher, S. Prabakar, Roger A. Assink, Kenneth J. Shea

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Abstract

Hydrocarbon-bridged polysilsesquioxanes are prepared by the sol-gel polymerization of monomers with more than one trialkoxysilyl group attached directly to the bridging group by Si-C bonds. While the effects of varying the identity of the bridging group (length, rigidly, etc.), monomer concentration, and type of catalyst have been studied, the effect of different alkoxy ligands on the silicon atoms has not been investigated. For this study, 1, 6-bis(triethoxysilyl)hexane 1 and 1, 6-bis(trimethoxysilyl)hexane 2 were polymerized under acidic and basic conditions in ethanol and methanol, respectively, and in tetrahydrofuran (THF). The resulting gels were processed to afford xerogels that were characterized by SEM, solid state 13C and 29Si Cross Polarization Magic Angle Spinning (CP MAS) NMR spectroscopy, and nitrogen sorption porosimetry.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
PublisherMaterials Research Society
Pages229-234
Number of pages6
Volume371
StatePublished - 1995
Externally publishedYes
EventProceedings of the 1994 MRS Fall Meeting - Boston, MA, USA
Duration: Nov 28 1994Nov 30 1994

Other

OtherProceedings of the 1994 MRS Fall Meeting
CityBoston, MA, USA
Period11/28/9411/30/94

Fingerprint

Xerogels
Hexanes
Hexane
Monomers
Magic angle spinning
Silicon
Hydrocarbons
Nuclear magnetic resonance spectroscopy
Sol-gels
Methanol
Sorption
Ethanol
Nitrogen
Gels
Ligands
Polymerization
Polarization
Atoms
Scanning electron microscopy
Catalysts

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Loy, D. A., Baugher, B. M., Prabakar, S., Assink, R. A., & Shea, K. J. (1995). Comparison of bridged polysilsesquioxane xerogels prepared from methoxy- and ethoxy-silyl monomers. In Materials Research Society Symposium - Proceedings (Vol. 371, pp. 229-234). Materials Research Society.

Comparison of bridged polysilsesquioxane xerogels prepared from methoxy- and ethoxy-silyl monomers. / Loy, Douglas A; Baugher, Brigitta M.; Prabakar, S.; Assink, Roger A.; Shea, Kenneth J.

Materials Research Society Symposium - Proceedings. Vol. 371 Materials Research Society, 1995. p. 229-234.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Loy, DA, Baugher, BM, Prabakar, S, Assink, RA & Shea, KJ 1995, Comparison of bridged polysilsesquioxane xerogels prepared from methoxy- and ethoxy-silyl monomers. in Materials Research Society Symposium - Proceedings. vol. 371, Materials Research Society, pp. 229-234, Proceedings of the 1994 MRS Fall Meeting, Boston, MA, USA, 11/28/94.
Loy DA, Baugher BM, Prabakar S, Assink RA, Shea KJ. Comparison of bridged polysilsesquioxane xerogels prepared from methoxy- and ethoxy-silyl monomers. In Materials Research Society Symposium - Proceedings. Vol. 371. Materials Research Society. 1995. p. 229-234
Loy, Douglas A ; Baugher, Brigitta M. ; Prabakar, S. ; Assink, Roger A. ; Shea, Kenneth J. / Comparison of bridged polysilsesquioxane xerogels prepared from methoxy- and ethoxy-silyl monomers. Materials Research Society Symposium - Proceedings. Vol. 371 Materials Research Society, 1995. pp. 229-234
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