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Properties of Polystyrene Clay Nanocomposites Prepared Using Two New Imidazolium Surfactants
Joint Authors
Di Pasquale, Giovanna
Pollicino, Antonino
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-01-26
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Montmorillonite/polystyrene nanocomposites were prepared by in situ photopolymerization of styrene in the presence of 2% by weight of clay organomodified by two new imidazolium surfactants having in their structure an alkyl chain with 20 or 22 carbon atoms, respectively.
Thermogravimetry showed that the new surfactants are more thermally stable than conventional alkylammonium surfactants.
The properties of the obtained nanocomposites were compared with those of pristine polystyrene, with those of a microcomposite obtained by in situ polymerization of styrene in the presence of unmodified clay, and with those of a nanocomposite obtained starting from an organomodified clay with a short alkyl chain (12 carbon atoms) imidazolium surfactant.
XRD, TEM, and rheological analysis showed that the clay/PS nanocomposites have a mixture of intercalated and partially exfoliated structure layers, where the higher the surfactant alkyl chain length, the higher the exfoliation degree.
Kinetics curve of accelerated UV aging, obtained by following through infrared spectroscopy the increase of carbonyl functions during aging, showed that the rate of photooxidation of clay containing samples is higher than neat polystyrene.
The rate is higher as a function of the degree of dispersion of the filler in the polymer matrix.
American Psychological Association (APA)
Di Pasquale, Giovanna& Pollicino, Antonino. 2017. Properties of Polystyrene Clay Nanocomposites Prepared Using Two New Imidazolium Surfactants. Journal of Nanomaterials،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1182824
Modern Language Association (MLA)
Di Pasquale, Giovanna& Pollicino, Antonino. Properties of Polystyrene Clay Nanocomposites Prepared Using Two New Imidazolium Surfactants. Journal of Nanomaterials No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1182824
American Medical Association (AMA)
Di Pasquale, Giovanna& Pollicino, Antonino. Properties of Polystyrene Clay Nanocomposites Prepared Using Two New Imidazolium Surfactants. Journal of Nanomaterials. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1182824
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1182824