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Synthesis and characterization of resol-layered silicate nanocomposites

✍ Scribed by M. López; M. Blanco; J. A. Ramos; A. Vazquez; N. Gabilondo; J. J. del Val; J. M. Echeverría; I. Mondragon

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
542 KB
Volume
106
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

Resol‐layered silicate nanocomposites were synthesized by intercalative polymerization of phenol and formaldehyde using layered clays such as an aminoacid‐modified montmorillonite (MMT) and a commercial modified MMT (Cloisite 30B). The composites were prepared by a sequential process in which one of the reactives of the phenolic resin was reacted with the organosilicate and subsequently cured with triethylamine. The nanocomposites were studied by means of X‐ray diffraction, atomic force microscopy, and thermogravimetric analysis. Results show a strong clay composition dependence on the intercalation state. The composite of resol with 2 wt % aminoacid‐modified MMT content has the best dispersion of clay layers. Thermal stability of nanocomposites was slightly increased in comparison with the neat resol. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007

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