Browsing Theses by Subject "polyethylene"
Now showing items 1-5 of 5
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Approaches to Tailoring the Structure and Properties of Polyethylene
(University of Waterloo, 2002)Alternative methods to control the molecular weight and short chain branching distribution of polyethylene were investigated. The ability to produce polyolefins with multimodal microstructural distributions using single ... -
Mechanical and Chemical Properties of High Density Polyethylene: Effects of Microstructure on Creep Characteristics
(University of Waterloo, 2008-12-01)Environmental stress cracking (ESC) can result in catastrophic failure of polyethylene (PE) structures without any visible warning. The use of PE in more demanding applications, such as trenchless piping, can accelerate ... -
Micromechanical Modelling of Polyethylene
(University of Waterloo, 2007-11-27)The increasing use of polyethylene in diverse applications motivates the need for understanding how its molecular properties relate to the overall behaviour of the material. Although microstructure and mechanical properties ... -
Polymerization of Ethylene with Supported Early and Late Transition Metal Catalysts
(University of Waterloo, 2011-08-09)Single-site catalysts revolutionized the polyolefin manufacturing industry and research with their ability to make polymers with uniform microstructural properties. Several of these catalysts are currently used commercially ... -
Relationship between Short-Term and Long-Term Creep, and the Molecular Structure of Polyethylene
(University of Waterloo, 2009-09-02)Polyethylene has been studied from many different perspectives; a final application property perspective, in which the response of the material to loads is the topic; a micromechanical point of view, in which the macroscopic ...