CAS 2081-12-1 Zirconium(IV) tert-butoxide - Materials / Alfa Chemistry

NAVIGATION

Zirconium(IV) tert-butoxide

PRICE INQUIRY

Catalog Number

ACM2081121-1

CAS Number

2081-12-1

Product Name

Zirconium(IV) tert-butoxide

Structure

Synthesis of Hybrid Microspheres from Zirconium Tetra-Butoxide and Organic Copolymers

Toledo L, et al. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2018, 546, 91-98.

Hybrid microspheres can be successfully prepared from hydrated zirconia and organic copolymers, and the microspheres can be used in applications involving surface treatment, such as catalysis, adsorption, ion exchange, etc. The synthesis of hybrid microspheres is divided into two steps, namely the synthesis of P(ClVBTA-co-HEMA) microspheres and hybridization with the inorganic precursor zirconium tetra-butoxide [Zr(ButO-)4].
Synthesis of hybrid microspheres
· The synthesis of the poly(4-vinyl benzyl trimethyl ammonium chloride-co-2-hydroxy ethyl methacrylate), P(ClVBTA-co-HEMA), and microspheres was carried out by emulsion polymerization in a water-inoil (w/o) system.
· The synthesis of hybrid microspheres was carried out by impregnation of polymer microspheres with an inorganic precursor (IP) of Zr (ButO-)4, followed by a sol-gel reaction, leading to the oxide formation.
· The impregnation step included the study of the chemical precursor concentration (30-80 wt%), the solvent for impregnation (ethanol, 1,4-dioxane, 2-propanol, 1-butanol) and time (2-5 days).
· The polymeric microspheres were submerged in a solution of the inorganic precursor at room temperature and stirred at 250 rpm. After removing excess inorganic precursors by filtration, the impregnated microspheres were immersed in an ethanol/water 1:1 solution at 250 rpm for 24 h and finally dried in a 40 °C oven for 24 h.

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