Gelest, Inc. offers a wide range of metal alkoxides for use in sol-gel applications.

Sol-gel is a method for preparing specialty metal oxide glasses and ceramics by hydrolyzing a chemical precursor or mixture of precursors that pass sequentially through a solution state and a gel state before being dehydrated to a glass or ceramic.

Sol-Gel

Sol-Gel Process Technology and Chemistry (illustrated overleaf) Preparation of metal oxides using sol-gel routes proceeds by three basic steps:

  1. partial hydrolysis of metal alkoxides to form reactive monomers,
  2. condensation of these monomers to form colloid-like oligomers (sol formation),
  3. additional hydrolysis to promote polymerization and cross-linking leading to a three-dimensional matrix (gel formation).

Sol-gel technology can be used to prepare fibers, microspheres, thin films, fine powders and monoliths. Applications for sol-gel technology include protective coatings, catalysts, piezoelectric devices, wave-guides, lenses, high-strength ceramics, superconductors, synthesis of nanoparticles and insulating materials. The flexibility of sol-gel technology allows unique access to multi-component oxide systems and low temperature process regimens. Listed below are some popular examples of sol-gel precursors, and Gelest, Inc. offers hundreds of other alkoxide derivatives for metals of interest.

Metal-Organics

AKA020

ALUMINUM s-BUTOXIDE

AKB121

BARIUM ISOPROPOXIDE, 20% in isopropanol

AKC255

COPPER(II) METHOXYETHOXYETHOXIDE, 10-12% in methoxyethoxyethanol

GET7100

TETRAETHOXYGERMANE

AKY927

YTTRIUM METHOXYETHOXIDE, 15-18% in methoxyethanol

AKS790

STRONTIUM ISOPROPOXIDE

AKT872

TITANIUM ISOPROPOXIDE

AKZ975

ZIRCONIUM n-PROPOXIDE, 70% in n-propanol

Silanes

SIA0540.0

ALLYLTRIMETHOXYSILANE

SIE4901.0

ETHYLTRICHLOROSILANE

SIM6560.0

METHYLTRIMETHOXYSILANE

SIO6715.0

n-OCTYLTRIETHOXYSILANE, 98%

SIT7110.0

TETRAETHOXYSILANE, 98%

SIV9112.0

VINYLTRIETHOXYSILANE

©

Copyright 1991 - 2017 Gelest, Inc.