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Tailored interfaces in nanocomposites
Author(s) -
Le Pluart L.,
Duchet J.,
Sautereau H.,
Gérard J.F.
Publication year - 2003
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200390077
Subject(s) - cationic polymerization , nanocomposite , montmorillonite , alkyl , covalent bond , monomer , materials science , chemical engineering , adsorption , grafting , pulmonary surfactant , ion exchange , polymer chemistry , ion , carbon chain , polymer , chemistry , organic chemistry , composite material , engineering
Different kinds of clays based on sodium montmorillonite have been modified i) by cationic exchange of alkylammonium ions and ii) by covalent grafting of organosilane. We have prepared organophilic clays with different gallery heights (due to alkylammonium ions with alkyl chain length varying from 8 to 18 carbon atoms) and with a specific functionalisation (due to the organosilane). We have generated organoclays with different kind of organic layer properties: ionically bonded or physically adsorbed alkylammonium ions and covalently grafted organosilane. These different organoclays have shown various specific behaviours when dispersed in monomers or in a reactive mixture, proving the influence of the surfactant on the nanocomposite final properties.