Synthesis of conducting polyaniline-montmorillonite nanocomposites via inverse emulsion polymerization in supercritical carbon dioxide

2009 ◽  
pp. NA-NA ◽  
Author(s):  
Fu Sun ◽  
Yuejin Pan ◽  
Jing Wang ◽  
Zi Wang ◽  
Chunpu Hu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Emulsion Polymerization ◽  
Inverse Emulsion Polymerization ◽  
Inverse Emulsion ◽  
Conducting Polyaniline ◽  
Supercritical Carbon ◽  
Montmorillonite Nanocomposites

Synthesis of polystyrene/bentonite clay nanocomposites by emulsion polymerization in aqueous and in supercritical carbon dioxide medium

2011 ◽  
Vol 45 (23) ◽  
pp. 2437-2446 ◽  
Author(s):  
I.R. Kamrupi ◽  
S.K. Dolui
Keyword(s):  
Electron Microscopy ◽  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Emulsion Polymerization ◽  
Bentonite Clay ◽  
Gel Permeation Chromatography ◽  
Clay Nanocomposites ◽  
Sodium Dodecylbenzene Sulfonate ◽  
Transmission Electron ◽  
Supercritical Carbon

In this article, the synthesis of polystyrene/bentonite clay nanocomposites by emulsion polymerization in aqueous and supercritical carbon dioxide (sc-CO2) media using organically modified bentonite clay is reported. The modified clay is dispersed within the monomer via ultrasonication and the mixture is allowed to undergo in situ emulsion polymerization, resulting in the formation of polymer/clay nanocomposites. A comparative study of the properties of the nanocomposites synthesized in the two media was carried out. The effects of clay concentration on polymer conversion, molecular weight, morphology, and mechanical properties have been investigated. Sodium dodecylbenzene sulfonate was used as a stabilizer in aqueous medium and polydimethylsiloxane in sc-CO2 medium. The nanocomposites were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, gel permeation chromatography, and thermogravimetric analysis.

HRP-mediated inverse emulsion polymerisation of acrylamide in supercritical carbon dioxide

2008 ◽  
Vol 10 (8) ◽  
pp. 863 ◽  
Author(s):  
Silvia Villarroya ◽  
Kristofer J. Thurecht ◽  
Steven M. Howdle
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Inverse Emulsion ◽  
Emulsion Polymerisation ◽  
Supercritical Carbon
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