Results 221 to 230 of about 23,412 (269)

Supercritical Carbon Dioxide

ChemInform, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Christopher M. Rayner, R. Scott Oakes, Toshiyasu Sakakura, Hiroyuki Yasuda   +3 more
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Adsorption of Supercritical Carbon Dioxide on Silica

Langmuir, 2001
In this work, the adsorption isotherms of carbon dioxide on silica have been measured with a gravimetric method at nine different temperature values (from 312 up to 466 K) and at pressure levels up to 366 bar. The adopted technique allows for a direct evaluation of the density that is measured simultaneously to the adsorption load, thus avoiding ...
O. D. Giovanni, W. Dorfler, MAZZOTTI, MARCO GIUSEPPE, MORBIDELLI, MASSIMO   +3 more
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Dyeing of Cotton in Supercritical Carbon Dioxide

Dyes and Pigments, 1998
Abstract The dyeing of cellulosic fibers with disperse and natural dyes was attempted using supercritical carbon dioxide (CO2SCF) as solvent system. The dye uptake was strongly increased if cotton was pretreated with polyethylene glycol (PEG), a known plasticizing agent of cellulose, while reasonable wet-washing and light fastness properties were ...
P. Beltrame, A. Castelli, E. Selli, A. Mossa, G. Testa, A. Bonfatti, A. Seves   +6 more
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Synthesis of Fluoropolymers in Supercritical Carbon Dioxide

Science, 1992
Fluoropolymers are used in many technologically demanding applications because of their balance of high-performance properties. A significant impediment to the synthesis of variants of commercially available amorphous fluoropolymers is their general insolubility in most solvents except chlorofluorocarbons (CFCs).
J M, Desimone, Z, Guan, C S, Elsbernd
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Polar Attributes of Supercritical Carbon Dioxide

Accounts of Chemical Research, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Poovathinthodiyil, Raveendran, Yutaka, Ikushima, Scott L, Wallen   +2 more
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Solubility of Cannabinol in Supercritical Carbon Dioxide

Journal of Chemical & Engineering Data, 2010
Cannabinol (CBN) is a decomposition product of the cannabinoid (-)-¿9-tetrahydrocannabinol (¿9-THC), the main active compound of cannabis. The solubility of CBN in supercritical carbon dioxide was determined at (314, 327, and 334) K and in the pressure range from (13.0 to 20.2) MPa by using an analytical method with a quasi-flow apparatus.
Perrotin-Brunel, H., Roosmalen, van, M.J.E., Kroon, M.C., Spronsen, van, J., Witkamp, G.J., Peters, C.J.   +5 more
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Olefin Metathesis in Supercritical Carbon Dioxide

Journal of the American Chemical Society, 2001
Liquid or supercritical carbon dioxide (scCO(2)) is a versatile reaction medium for ring-opening metathesis polymerization (ROMP) and ring-closing olefin metathesis (RCM) reactions using well-defined metal catalysts. The molybdenum alkylidene complex 1 and ruthenium carbenes 2 and 3 bearing PCy(3) or N-heterocyclic carbene ligands, respectively, can be
A, Fürstner, L, Ackermann, K, Beck, H, Hori, D, Koch, K, Langemann, M, Liebl, C, Six, W, Leitner   +8 more
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Dispersion Polymerizations in Supercritical Carbon Dioxide

Science, 1994
Conventional heterogeneous dispersion polymerizations of unsaturated monomers are performed in either aqueous or organic dispersing media with the addition of interfacially active agents to stabilize the colloidal dispersion that forms. Successful stabilization of the polymer colloid during polymerization results in the formation of high ...
J M, Desimone, E E, Maury, Y Z, Menceloglu, J B, McClain, T J, Romack, J R, Combes   +5 more
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Precipitation of Proteins in Supercritical Carbon Dioxide

Journal of Pharmaceutical Sciences, 1996
Supercritical CO2 was used as an antisolvent to form protein particles that exhibited minimal loss of activity upon reconstitution. Organic protein solutions were sprayed under a variety of operating conditions into the supercritical fluid, causing precipitation of dry, microparticulate (1-5 microns) protein powders.
M A, Winters, B L, Knutson, P G, Debenedetti, H G, Sparks, T M, Przybycien, C L, Stevenson, S J, Prestrelski   +6 more
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Pharmaceutical Processing with Supercritical Carbon Dioxide

Journal of Pharmaceutical Sciences, 1997
Replacement of traditional solvents with "environmentally benign" carbon dioxide is receiving increased attention in pharmaceutical processing. Among the reported applications, particle formation with dense carbon dioxide and the "clean" synthesis of drug compounds using carbon dioxide as a reaction medium hold immense potential for large-scale ...
B, Subramaniam, R A, Rajewski, K, Snavely   +2 more
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