Results 291 to 300 of about 46,582 (320)
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Chemical Engineering Science, 2005
Abstract In radical polymerization using a batch reactor, material concentrations and hot spots often appear in the reactor, which may have a bad influence on the polymer properties, and control of a reaction may become impossible, depending on the degree of the hot spots.
Meguru Kaminoyama +3 more
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Abstract In radical polymerization using a batch reactor, material concentrations and hot spots often appear in the reactor, which may have a bad influence on the polymer properties, and control of a reaction may become impossible, depending on the degree of the hot spots.
Meguru Kaminoyama +3 more
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Synthesis of polyimides in supercritical carbon dioxide
The Journal of Supercritical Fluids, 2003Abstract One-step polycyclization reaction in supercritical carbon dioxide has been carried out for the first time and a thereby set of polyimides has been synthesized. Diphenyl-2,2-hexafluoropropane-3,3′,4,4′-tetracarboxylic acid dianhydride (dianhydride 6F), 4,4′-diaminodiphenyl-2,2-hexafluoropropane (diamine 6F) and 9,9-bis(4-aminophenyl)fluorene ...
Yakov S. Vygodskii +8 more
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2014
Carbon dioxide, dry ice (solid phase) [124-38-9] CO2 (MW 44.01) InChI = 1S/CO2/c2-1-3 InChIKey = CURLTUGMZLYLDI-UHFFFAOYSA-N (supercritical carbon dioxide is used as a solvent, reagent, and reaction medium) Physical Data mp: −56.6 °C; bp: −78.5 °C (sublimes); density: 1.977 kg m−3 (gas at 1 bar and 0 °C); crystal structure ...
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Carbon dioxide, dry ice (solid phase) [124-38-9] CO2 (MW 44.01) InChI = 1S/CO2/c2-1-3 InChIKey = CURLTUGMZLYLDI-UHFFFAOYSA-N (supercritical carbon dioxide is used as a solvent, reagent, and reaction medium) Physical Data mp: −56.6 °C; bp: −78.5 °C (sublimes); density: 1.977 kg m−3 (gas at 1 bar and 0 °C); crystal structure ...
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Transport properties of supercritical carbon dioxide [PDF]
, 2005 Recently, supercritical fluids have emerged as more sustainable alternatives for the organic solvents often used in polymer processes. This is the first book emphasizing the potential of supercritical carbon dioxide for polymer processes from an engineering point of view.
Lavanchy, Frederic +5 more
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Dissolution of uranium dioxide in supercritical fluid carbon dioxide
Chemical Communications, 2001Uranium dioxide can be dissolved in supercritical CO2 with a CO2-philic TBP-HNO3 complexant to form a highly soluble UO2(NO3)(2).2TBP complex; this new method of dissolving UO2 that requires no water or organic solvent may have important applications for reprocessing of spent nuclear fuels and for treatment of nuclear wastes.
Neil G. Smart +4 more
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Polymerisations in supercritical carbon dioxide
1999This thesis was digitised by the British Library from microfilm. You can acquire a single copy of this thesis for research purposes by clicking on the padlock icon on the thesis file. Please be aware that the text in the supplied thesis pdf file may not be as clear as text in a thesis that was born digital or digitised directly from paper due to the ...
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Nitrile oxide cycloadditions in supercritical carbon dioxide
Chemical Communications, 2004AbstractFor Abstract see ChemInform Abstract in Full Text.
Gary A. Leeke +5 more
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Solubility of 6-Caprolactam in Supercritical Carbon Dioxide
Journal of Chemical & Engineering Data, 1996Solubility of 6-caprolactam in supercritical carbon dioxide was measured at temperatures from 307 K to 324 K and pressures from 100 bar to 230 bar. The mole fraction solubilities ranged from 0.02 to 0.07. A static variable volume view cell apparatus was used for the measurements.
Jäntti, Matti, Laitinen, Antero
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Supercritical Carbon Dioxide in Semiconductor Cleaning
2007The manufacturing of semiconductor devices relies on four basic operations: layering, patterning, doping, and heating. The focus of this review is obviously on scCO2 cleaning. The chapter provides some background information on the characteristics of supercritical fluids and their related solvation properties, with an emphasis especially on scCO2.
Pankaj Pathak +2 more
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