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Theoretical models for the coarse-graining of polymeric liquids /Sambriski, Edward John, January 2006 (has links)
Thesis (Ph. D.)--University of Oregon, 2006. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 219-228). Also available for download via the World Wide Web; free to University of Oregon users.
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Mechanics of non-Newtonian fluidsChilcott, Mark David January 1988 (has links)
No description available.
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Extensional flow of macromolecules in solutionMueller, A. J. January 1989 (has links)
No description available.
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Polyarylanthraquinoneimines: A new family of polymers.Williams, Paul Allan. January 1993 (has links)
This work describes a novel technique to prepare a family of polymers which contain a polyquinoneimine backbone. The polymerization utilized a condensation reaction which yielded novel substituted polyanilines. The polymer generating reaction, formation of the imine, was optimized to a quantitative yield via a model compound study. The model quinoneimine was prepared from anthraquinone and two equivalents aniline in the presence of excess of titanium tetrachloride and 1,4-diazabicyclo[2.2.2]octane. The X-ray crystal structure of the model compound from anthraquinone had indicated that the ring system is not planar due to steric hindrance between the peri-hydrogen of anthraquinone and the ortho-hydrogen of the N-phenyl ring. The X-ray crystal structure of the model compound prepared from 4,8-dehydrobenzo-[1,2-b:4,5-b']dithiophene-4,8-dione reveals the quinone moiety to be planar. This indicates that the incorporation of a benzoquinone moiety with two fused thiophene rings in the model compound relieved the steric hindrance observed in the anthraquinone model compound. The model compound synthetic strategy was used to prepare polyquinoneimines from either of the above mentioned quinones and aromatic diamines. The polyquinoneimines were prepared in high yields with molecular weights up to 20,000. The polymers are red powders which are soluble in common organic solvents such as tetrahydrofuran, chloroform and chlorobenzene and form red transparent films. In contrast, polyanilines are typically black insoluble and intractible polymers. Characterization of the polymers prepared from either 4,4'-methylenedianiline or 4,4'-thiodianiline and anthraquinone revealed that 5-20% of the product is a novel low molecular weight macrocyclic quinoneimine.
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Efficiency of shear-induced agglomeration of particulate suspensions subjected to bridging flocculationAgarwal, Sushant, January 1900 (has links)
Thesis (Ph. D.)--West Virginia University, 2002. / Title from document title page. Document formatted into pages; contains xii, 138 p. : ill. Includes abstract. Includes bibliographical references (p. 111-118).
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Brownian dynamic simulations of nanoparticle dispersions in polymer solutions a thesis presented to the faculty of the Graduate School, Tennessee Technological University /Gollamandala, Deepika Rao, January 2009 (has links)
Thesis (M.S.)--Tennessee Technological University, 2009. / Title from title page screen (viewed on Feb. 10, 2010). Includes bibliographical references.
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Coarse-graining polymer solutions in the semi-dilute regimeCapone, Barbara January 2010 (has links)
No description available.
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On-line conversion measurement during solution polymerization via dielectric sensorsMiller, Michael Larry 12 1900 (has links)
No description available.
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Electrophoresis of Colloidal Particles in Shear-Thinning Polymer SolutionsPosluszny, Denise 01 August 2014 (has links)
This thesis includes a theoretical and experimental analysis of electrophoresis of colloidal particles in non-Newtonian polymeric fluids with shear-rate dependent viscosities. A model is derived that predicts field dependent electrophoretic mobility in shear-thinning Carreau uids. The latter effect is experimentally investigated for submicron particles in solutions of linear polyacrylamide using capillary electrophoresis. The mobilitiies of the particles studied in these solutions did not depend on field strength, yet the mobilities were consistently an order of magnitude greater than in water and glycerol solutions with similar bulk viscosities. The increase in particle mobility could be attributed to several mechanisms, however it is consistent with the depletion of polymer apparent viscosity of the fluid as it migrates by electrophoresis is the same as experienced by the particle in Brownian diffusion. A comparison of particle mobility in both glycerol and polyacrylamide solutions to diffusion coefficients of the particles measured by dynamic light scattering supports this conclusion.
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Modeling wormlike micellar solutionsVasquez, Paula Andrea. January 2007 (has links)
Thesis (Ph.D.)--University of Delaware, 2007. / Principal faculty advisor: L. Pamela Cook, Dept. of Mathematical Sciences. Includes bibliographical references.
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