A Rheokinetic Study of Free Radical Polymeriztaion of Polystyrene/Graphite Systems Performed with a Couette Rheometer
Advisor:Tomasko, David L.
MetadataShow full item record
Publisher:The Ohio State University
Series/Report no.:The Ohio State University. Department of Chemical and Biomolecular Engineering Honors Theses;2005
This thesis attempts to introduce the concepts behind the research field of rheokinetics. Experiments were conducted to intensify the study of these concepts and to verify or challenge various assumptions that accompany work in this field. The experiments involved the use of a Physica Modular Compact Rheometer Model 500 to measure the viscosity of a polymer system during polymerization. All polymerizations were carried out at 85˚C. Styrene monomer and a benzoyl peroxide initiator were used in all reactions. The composition of the polymer system was varied to include either polystyrene powder and/or graphite nano-particles. The shear rate was varied as well, but for styrene to polystyrene reactions only. Both the composition and shear rate were found to have an effect on the viscosity profile of the system, especially concerning the Trommsdorff effect.
Items in Knowledge Bank are protected by copyright, with all rights reserved, unless otherwise indicated.