Published 2009 | Version v1
Journal article Metadata-only

An innovative series of layered nanostructured aminoalkylsilica hybrid material

Creators

  • 1. Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS (Brazil). Inst. de Quimica
  • 2. Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS (Brazil). Inst. de Fisica

Description

An innovative series of silica-based hybrid materials containing pendant cationic ammoniumpropyl groups was obtained using the sol-gel method, by varying the molar ratio of the inorganic and organic precursors. Thermogravimetric analysis showed that samples were thermally stable up to 260 deg C. Results obtained by X-ray diffractometry, transmission electron microscopy, 29Si nuclear magnetic resonance and elemental analysis were compatible with a silsesquioxane layered structural model showing basal distances up to 5.4 nm, containing amorphous silica in the interlayer space. (author)

Availability note (English)

Available from http://www.scielo.br/pdf/jbchs/v20n4/v20n4a17.pdf

Additional details

Identifiers

URL
http://www.scielo.br/pdf/jbchs/v20n4/v20n4a17.pdf;

Publishing Information

Journal Title
Journal of the Brazilian Chemical Society
Journal Volume
20
Journal Issue
4
Journal Page Range
p. 737-743
ISSN
0103-5053
CODEN
JOCSET

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
40086758
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
AMMONIUM COMPLEXES; HYBRID SYSTEMS; NMR SPECTRA; PRECURSOR; PROPYL RADICALS; SILICA; SILICON 29; SILICON OXIDES; SOL-GEL PROCESS; THERMAL GRAVIMETRIC ANALYSIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION
Descriptors DEC
ALKYL RADICALS; CHALCOGENIDES; CHEMICAL ANALYSIS; COHERENT SCATTERING; COMPLEXES; DIFFRACTION; ELECTRON MICROSCOPY; EVEN-ODD NUCLEI; GRAVIMETRIC ANALYSIS; ISOTOPES; LIGHT NUCLEI; MICROSCOPY; MINERALS; NUCLEI; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; QUANTITATIVE CHEMICAL ANALYSIS; RADICALS; SCATTERING; SILICON COMPOUNDS; SILICON ISOTOPES; SPECTRA; STABLE ISOTOPES; THERMAL ANALYSIS

Optional Information

Notes
40 refs., 7 figs., 4 tabs.