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References in periodicals archive ?
Qutubuddin, "Polymer-clay nanocomposites: exfoliation of organophilic montmorillonite nanolayers in polystyrene," Polymer, vol.
Mi, "Combined modification of asphalt with polyethylene packaging waste and organophilic montmorillonite," Polymer Testing, vol.
However, sodium cations in the interlayer space of montmorillonite can be exchanged with organic cations to yield organophilic montmorillonite [37-39].
After this, organophilic montmorillonite was blended with acrylonitrile/butadiene rubber (NBR) by roll milling, and the rubber was vulcanized with sulfur.
Phillips, "Adsorption of zearalenone by organophilic montmorillonite clay," Journal of Agricultural and Food Chemistry, vol.
The organophilic montmorillonite (OMMT), which is MMT exchanged with octadecylammonium ions and having a CEC of 130 meq/100 g and the same particle size with Na-MMT was purchased from the same factory.
Two organophilic silicates, organophilic montmorillonite (OMMT), were selected for the study with different organophilization.
Preparation of the Organophilic Montmorillonite. To modify the chemical nature of the sodium montmorillonite, it was first dispersed at 1200 rpm in hot water (about 80[degrees]C).
ABBREVIATIONS MA Maleic anhydride MMT Montmorillonite mPE(s) Metallocene polyethylene(s) [M.sub.w] and [M.sub.n] Average molecular weights (weight and number, respectively) OMMT Organophilic montmorillonite (modified with octadecyl-ammonium) PA-6(s) Polyamides-6(s) PA-OMMT Nanocomposite based on polyamide and modified montmorillonite PP(s) Polypropylene(s) PP-g-MA Polypropylene grafted with maleic anhydride Ru[O.sub.4] Ruthenium tetroxide SEBS-g-MA Styrene/ethylene-butylene/styrene rubber SEM Scanning electron microscopy TEM Transmission electron microscopy WAXD Wide angle X-ray diffraction XRD X-ray diffraction XRF X-ray fluorescence
The focus of this study has been on the preparation of polystyrene-clay nanocomposites by suspension polymerization of styrene monomer in the presence of organo-MMT, and on understanding the effect of the concentration of organophilic montmorillonite (MMT) on the properties of PS-clay nanocomposites and the potential effect of surfactants with different alkyl chain lengths on the properties of PS-clay nanocomposites.
Organophilic montmorillonites prepared from those surfactants proved to have a higher thermal stability than Cloisite 20A.
Poly(amic acid) nanocomposites were synthesized from a dimethylacetamide (DMAc) solution with two organophilic montmorillonites (organo-MMTs).