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http://hdl.handle.net/11375/8326
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DC Field | Value | Language |
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dc.contributor.advisor | Hamielec, A.E. | en_US |
dc.contributor.author | Singh, Surendra | en_US |
dc.date.accessioned | 2014-06-18T16:42:33Z | - |
dc.date.available | 2014-06-18T16:42:33Z | - |
dc.date.created | 2009-07-07 | en_US |
dc.date.issued | 1977-10 | en_US |
dc.identifier.other | opendissertations/354 | en_US |
dc.identifier.other | 1260 | en_US |
dc.identifier.other | 889910 | en_US |
dc.identifier.uri | http://hdl.handle.net/11375/8326 | - |
dc.description.abstract | <p>Herein is reported a theoretical and experimental evaluation of liquid exclusion chromatography (LEC) for the measurement of particle size distribution (PSD) and diameter averages for colloidal spheres of various compositions.</p> <p>Correction factors for axial dispersion have been derived for a general detector whose signal is proportional to the number of particles time particle diameter to the power gamma (γ) where γ varies from zero to six. This general detector includes a turbidimeter (γ=6) and a refractometer (γ=3).</p> <p>Equipment and operational variables and their effect on resolution were investigated experimentally. These included packing and pore sizes, bed length and carrier liquid flowrate.</p> <p>The use of LEC for the off-line monitoring of the growth of latex particles was investigated for the surfactant-free emulsion polymerization of two monomer systems-styrene and vinyl acetate.</p> <p>LEC can be used to quantitatively measure the size distribution and diameter averages of both organic latices and inorganic particles in the submicron range in an off-line analytical mode. LEC is sufficiently rapid for the off-line monitoring of latex particle growth in emulsion polymerization. With some modification it could be used in an online mode as a sensor for reactor control.</p> | en_US |
dc.subject | Chemical Engineering | en_US |
dc.subject | Chemical Engineering | en_US |
dc.title | Measurement of Particle Size in the Submicron Range - Evaluation of Liquid Exclusion Chromatography (LEC) | en_US |
dc.type | thesis | en_US |
dc.contributor.department | Chemical Engineering | en_US |
dc.description.degree | Master of Engineering (ME) | en_US |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Size | Format | |
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fulltext.pdf | 2.52 MB | Adobe PDF | View/Open |
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