Issue 2, 2003
From the journal:

Journal of Materials Chemistry

Covalent grafting of phenylphosphonate groups onto layered silica derived from in situ-leached chrysotile fibers

Fernando Wypych,*a   Wido H. Schreiner,b   Ney Mattoso,b   Dante H. Mosca,b   Rafael Marangonia  and  Carlos A. da S. Bentoc  

* Corresponding authors

a Centro de Pesquisas em Química Aplicada (CEPESQ), Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19081, PR, Brazil
E-mail: wypych@quimica.ufpr.br

b Departamento de Física, Universidade Federal do Paraná (UFPR), CP 19081, PR, Brazil

c Laboratório de Microscopia Eletrônica de Varredura, Instituto de Química, Universidade de São Paulo (USP/São Carlos), SP, Brazil

Abstract

The reaction of natural chrysotile fibers with phenylphosphonic acid leads to a new grafted material. The layered material, with an interplanar basal distance of 15.2 Å, was characterized by powder X-ray diffraction, thermal analysis, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, transmission electron microscopy and energy dispersive X-ray analysis. The experimental data are consistent with the grafting of phenylphosphonate groups to the surface of the layered silica sheets, obtained by the in situ acidic leaching of brucite sheets, from chrysotile.

Graphical abstract: Covalent grafting of phenylphosphonate groups onto layered silica derived from in situ-leached chrysotile fibers

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Article information

DOI
https://doi.org/10.1039/B210370B
Article type
Paper
Submitted
22 Nov 2002
Accepted
12 Dec 2002
First published
07 Jan 2003

J. Mater. Chem., 2003,13, 304-307

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Covalent grafting of phenylphosphonate groups onto layered silica derived from in situ-leached chrysotile fibers

F. Wypych, W. H. Schreiner, N. Mattoso, D. H. Mosca, R. Marangoni and C. A. da S. Bento, J. Mater. Chem., 2003, 13, 304 DOI: 10.1039/B210370B

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