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| Polymer Scientist and Technologist |
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| Synthesis and Scale-up of water soluble polymer at Leeds University |
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Alias Al-Bayati, BSc,PhD "Acrylamide and Hydrophobically associated Acrylamide Copolymerisation With Controlled Molecular Weight" This project involves preparing acrylamide homopolymers of 2, 0.5 and 0.25 million molecular weight and coplymerisation of these polymers with 3 and 5 mol% of a C9 hydrophobe ( N- Alkyl acrylamide and Nonoylphenoxy polyethorxy acrylate) incorporated to improve viscosity for oil recovery industries. "Mechanical Properties of Polyurethane-Unsaturated Polyester Interpenetrating Polymer Networks" The mechanical properties, such as tensile strength, elongation at break, impact strength and dynamic mechanical properties of Interpenetrating Polymer Networks (IPNs), were studied by changing reaction temperature, PU reaction rate and UPE reaction rate. "Influence of Processing and Fabrication Methods on Selected Polymeric Products". An exploration of Hand Lay-up and Reaction Injection Moulding methods for the production of glass fibre composite products using conventional polyester and novel hybrid polyester matrices. The primary analytical methods have been void detection by ultrasonic, mechanical and physical test methods associated with polymer characterisation. Reactive Injection Moulding. Using a computer controlled 4 stream reactive injection moulding machine to process and optimise the conditions to obtain a processing window profile for various resin systems and reinforcing fibres, such as polyamide, polyurethane, epoxy and novel hybrid polyester system, glass fibres (various type), carbon, kevlar and other research organic fibres. The material were analysed using DSC, DMA, DMTA, C-scan and various mechanical and physical test methods. Using CFD (Computational Fluid Dynamic) method to solve heat transfer and some other aspects of polyurethane using Phoenics the commercial packages. The aims of this work were to, (i) simulate the temperature profiles which might occurs in a splinting bandage during cure assuming uniform water distribution throughout the structure, and (ii) examine the effect of water diffusion into a splinting bandage when introduced to water "vertically" and "horizontally. "Kinetics of Free Radical Copolymerisation in Solution". My Ph.D. study consists of two parts; experimental and theoretical. The experimental part was to develop a new experimental technique to determine Monomer Reactivity Ratios (MRR's) and investigate the effect of changing concentrations, temperatures and pressure for different copolymerisation reactions. I developed a new experimental technique to estimate the MRR's in multicomponent copolymerisation. In the theoretical part I developed a mathematical model to simulate the copolymerisation reaction, and a control policy has been added to control the composition of copolymerisation and multicomponent copolymerisation during the reaction. Finally, I developed a mathematical treatment computer program for sequence distribution and some structural feature aspects in multicomponent copolymerisation.  Last Updated 27 April 1999 |
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