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Missouri University of Science and Technology
Drags (Hydrography)<br />Polymers -- Structure -- Analysis<br />Solvents<br />Fluid dynamics
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The Effect Of Polymer Structure On Drag Reduction In Nonpolar Solvents, Gin Chain Liaw
The Effect Of Polymer Structure On Drag Reduction In Nonpolar Solvents, Gin Chain Liaw
Doctoral Dissertations
"The effects of polymer chain flexibility, molecular weight and entanglement capacity, and of polymer solution concentration on drag reduction in nonpolar solvents were studied in this investigation. Three samples of polydimethyl siloxane in toluene, five samples of polyethylene oxide in benzene, two samples of cis-polyisoprene in toluene, trans-polyisoprene in toluene, cis-polybutadiene in toluene, ethyl cellulose in toluene and a copolymer of epichlorohydrin and polyethylene oxide in toluene were studied. Molecular weights of all polymers were estimated from intrinsic viscosity, except for the molecular weight of the copolymer which was given by the manufacturer. Turbulent and laminar flow pressure drop data …