Results 171 to 180 of about 6,738 (224)

Lamellar nanostructure in ‘Somasif’-based organoclays

Clays and Clay Minerals, 2007
AbstractThermally induced lamellar structure changes due to phase transition and degradation in organoclays based on a synthetic ‘Somasif’ mineral and two organic surfactants, di-methyl dihydro-ditallow ammonia chloride (DMDTA) and tri-butyl-hexadecyl phosphonium bromide (HTBP) were investigated by differential scanning calorimetry (DSC ...
Gelfer, M., Burger, C., Nawani, P., Hsiao, B., Chu, B., Si, M., Rafailovich, M., Panek, G., Jeschke, G., Fadeev, A., Gilman, J.   +10 more
openaire   +4 more sources

Synthesis and characterization of clay/organoclay-chitosan and clay/organoclay-triethyl chitosan nanocomposites

2020
Bu çalışmada montmorillonite (Mt) kili kullanılarak kil-kitosan, organokil-kitosan, kil-trietil kitosan ve organokil-trietil kitosan nanokompozitleri sentezlenmiş ve karakterizasyonları yapılmıştır. Organokil elde etmek için kil yüzeyi uzun zincirli (setil trimetil amonyum bromür (CTAB)), kısa zincirli (tetrametil amonyum bromür (TEAB)), ve halkalı ...
ÇELEBİ, Nuray, YILDIZ, Nuray
openaire   +2 more sources

Harvesting of oleaginous Chlorella sp. by organoclays

Bioresource Technology, 2013
In microalgae-based biorefinement, one of the highest practical priorities is to reduce the costs of downstream processes. As one potential solution, microalgae harvesting by organoclays has received particularly keen research interest. In the present study, cationic charged aluminum- and magnesium-backboned organoclays were synthesized and solubilized
Lee, YC Lee, Young-Chul, Kim, B Kim, Bohwa, Farooq, W Farooq, Wasif, Chung, J Chung, Jane, Han, JI Han, Jong-In, Shin, HJ Shin, Hyun-Jae, Jeong, SH Jeong, Sang Hwa, Park, JY Park, Ji-Yeon, Lee, JS Lee, Jin-Suk, Oh, YK Oh, You-Kwan   +9 more
openaire   +3 more sources

The interlayer swelling and molecular packing in organoclays

Journal of Colloid and Interface Science, 2005
Understanding the interlayer swelling and molecular packing in organoclays is important to the formation and design of polymer nanocomposites. This paper presents recent experimental and molecular simulation studies on a variety of organoclays that show a linear relationship between the increase of d-spacing and the mass ratio between organic and clay.
Paul, DR, Zeng, QH, Yu, AB, Lu, GQ
openaire   +6 more sources

Melamine-based organoclay to sequester atrazine

Chemosphere, 2006
Sequestration of aqueous atrazine by organoclays prepared from the surfactant 6-piperazin-1-yl-N,N'-bis-(1,1,3,3-tetramethyl-butyl)-(1,3,5)triazine-2,4-diamine and Gonzales bentonite was assessed using 14C-labeled atrazine. Organoclays with varying ratios of surfactant to clay were evaluated with respect to their ability to sequester atrazine from an ...
Susan L, Neitsch, Kevin J, McInnes, Scott A, Senseman, G Norman, White, Eric E, Simanek   +4 more
openaire   +2 more sources

Organoclays for Aquifer Bioremediation: Adsorption of Chlorobenzene on Organoclays and its Degradation by RHODOCOCCUS B528

Water, Air, & Soil Pollution: Focus, 2006
The adsorption and degradation of chlorobenzene on partially modified organoclays and by the autochthonous microorganism Rhodococcus B528 were studied by means of the batch technique. Organoclays were prepared from Na-montmorillonite (MM) by using dodecyltrimethylammonium (C12) and dioctadecyldimethylammonium (2C18) bromides ...
Barbara Witthuhn, Peter Klauth, Timea Pernyeszi, Harry Vereecken, Erwin Klumpp   +4 more
openaire   +1 more source

Sorption of nitroaromatic compounds to synthesized organoclays

Journal of Colloid and Interface Science, 2006
This project quantifies the ability of seven engineered organoclays to sorb TNT and two of its reduction products: 2-amino-4,6-dinitrotoluene (2-A-4,6-DNT) and 4-amino-2,6-dinitrotoluene (4-A-2,6-DNT). The organoclays used in the TNT sorption studies were synthesized in the laboratory by combining bentonite with benzyltriethylammonium chloride (BTEA ...
R T, Upson, S E, Burns
openaire   +2 more sources

Enzyme-powered motility in buoyant organoclay/DNA protocells

Nature Chemistry, 2018
B. V. V. S. Pavan Kumar, A. Patil, S. Mann   +2 more
semanticscholar   +1 more source

Organoclays

2009
Maguy Jaber, Jocelyne Miehé-Brendlé
openaire   +1 more source

PET/Organoclay nanocomposites

2009
This thesis looks at the study of nanocomposites of Poly(ethylene terephthalate) and organoclays. Two methods of materials blending are investigated for the production of the nanocomposites: solvent blending and melt blending. The main objectives were the investigation of the influence of organoclays and processing conditions on morphological ...
openaire   +1 more source