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Number of results
2009 | 64 | 1-10

Article title

Synthesis and structure of ethylene bridged polysilsesquioxanes functionalized with different groups

Content

Title variants

Languages of publication

EN

Abstracts

EN
Amino-, thiol-, urea-, and acethoxy- functionalized polysilsesquioxane xerogels have been obtained by co-condensation of 1,2-bis(triethoxysilyl)ethane with trifunctional silanes. The structural and chemical characterization of the xerogels was done by means of IR, 13C NMR, 29Si NMR spectroscopy, AFM, elemental analysis and nitrogen adsorption measurements. The resulting xerogels have a porous structure (SBET in the range 500-800 m2/g) and a high content of functional groups (2.3-2.7 mmol/g). Majority of these groups are accessible on the surface generating specific adsorption sites. The nature of the functional group introduced by co-condensation substantially influences the porous structure - the resulting samples can be microporous or mesoporous depending on the type of the group used.

Keywords

Year

Volume

64

Pages

1-10

Physical description

Dates

published
1 - 1 - 2009
online
22 - 1 - 2010

Contributors

author
  • Faculty of Chemistry, Maria Curie-Skłodowska University, pl. Marii Curie-Skłodowskiej 5, 20-031 Lublin, POLAND
author
  • Faculty of Chemistry, Maria Curie-Skłodowska University, pl. Marii Curie-Skłodowskiej 5, 20-031 Lublin, POLAND

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_v10063-008-0002-y
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