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Phosphonate/Phosphonic acid grafted on St-DVB polymer/SiO2 hybrid

A. POPA1,* , V. PARVULESCU2, R. ENE2, G. ILIA1, S. ILIESCU1

Affiliation

  1. Institute of Chemistry Timisoara of Romanian Academy, 24 Mihai Viteazul Blv., 300223 Timisoara, Romania
  2. Institute of Physical Chemistry, Spl. Independentei 202, 060021 Bucharest, Romania

Abstract

The synthesis and characterization of new hybrid materials was obtained by a two-stage reaction with producing phosphonate (phosphonic acid) grafted on St-DVB copolymer as core and silica particles’ grafting of tetraethylorthosilicate as shell. The obtained hybrids were characterized by FT-IR spectroscopy, Thermal Analysis (TG, DTG, and DTA), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and N2 adsorption-desorption izotherms. Structure of porous materials is viewed by SEM and TEM. Hybrid materials obtained are characterized by high thermal stability. Phosphonate polymer-silica hybrids show by adsorption-desorption isotherms a silica shell with spherical aggregates of micoporous nanoparticles.

Keywords

Hybrid material, Sol-gel synthesis, Phosphonate/phosphonic group.

Citation

A. POPA, V. PARVULESCU, R. ENE, G. ILIA, S. ILIESCU, Phosphonate/Phosphonic acid grafted on St-DVB polymer/SiO2 hybrid, Optoelectronics and Advanced Materials - Rapid Communications, 4, 8, August 2010, pp.1203-1207 (2010).

Submitted at: July 14, 2010

Accepted at: Aug. 12, 2010