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Polystyrene‐Clay Nanocomposites Prepared with Polymerizable Imidazolium Surfactants
Author(s) -
Bottino Francesco A.,
Fabbri Elena,
Fragalà Ignazio L.,
Malandrino Graziella,
Orestano Alice,
Pilati Francesco,
Pollicino Antonino
Publication year - 2003
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200300054
Subject(s) - montmorillonite , polystyrene , thermogravimetric analysis , nanocomposite , thermal stability , materials science , polymer chemistry , scanning electron microscope , transmission electron microscopy , chemical engineering , polymerization , pulmonary surfactant , polymer , composite material , nanotechnology , engineering
Polystyrene/montmorillonite nanocomposites were prepared via in situ bulk polymerization. New imidazolium salts were used to modify montmorillonite obtaining an improvement in thermal stability in comparison with a montmorillonite modified with a standard alkylammonium cation. The synthesized cations facilitate the formation of partially exfoliated structures because of the presence in their structure of a polymerizable group. The polystyrene/montmorillonite nanocomposites were characterized by X‐ray diffraction, thermogravimetric analysis, scanning electron microscopy (SEM), and transmission electron microscopy (TEM).The new thermally stable, reactive surfactant imidazolium salts (C 12 , C 16 and C 18 ) used to organically modify montmorillonite in this study.