Browsing by Subject "Polymerization"
Now showing items 1-15 of 15
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Characterization of Olefin Polymerization Reactions Using Dissolution Dynamic Nuclear Polarization (2018-08-31)NNuclear magnetic resonance (NMR) spectroscopy is a powerful analytical tool with widespread applications in all areas of synthetic chemistry including polymer chemistry. High-resolution solution-state NMR not only provides ...
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(Texas A&M University. Libraries, 1982)The formation of vesicles and polymeric vesicles from unsaturated surfactants was discussed in regards to conditions for formation (sample size and sonication time), polymerization, substrate entrapment, hydroxide ion ...
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(Texas A&M University. Libraries, 1982)Both fresh and sheared dilute polymer solutions of Separan AP-30 (100, 250, 500 ppm by weight) were used to establish a correlation between rheological properties and turbulent drag reduction in tube flow. The viscosities ...
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(Texas A&M University, 2006-04-12)Several ansa C1-symmetric cyclopentadienyl-fluorenyl metallocenes based on zirconium have been prepared with different substituents at position 3 on the cyclopentadienyl ring. Isotactic polypropylene production from these ...
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(Texas A&M University. Libraries, 1976)Viscous and elastic rheological properties of three very dilute polymer solutions (100 to 500 parts per million) of a polyacrylamide in distilled water have been determined. By using the Weissenberg Rheogoniometer, both ...
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Functionalization of polyolefins : entrapment of functionalized ethylene oligomers in polyethylene (Texas A&M University. Libraries, 1985)Functionalization of polyethylene by entrapment of functionalized ethylene oligomers in precipitates of polyethylene is described. The details of this entrapment process, which is an alternative to harsh, unselective ...
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(Texas A&M University. Libraries, 1980)
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(Texas A&M University. Libraries, 1981)The purpose of this study was to develop and utilize models for assessing viscosity, elasticity and gel strength of heat-induced gels from bovine plasma protein and egg albumen and to characterize the rheological response ...
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(Texas A&M University. Libraries, 1986)
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(Texas A&M University. Libraries, 1981)Water adsorbed in polymers is important for mechanical, electrical, and other physical properties. At low concentrations the water does not freeze but becomes immobile at about 150(DEGREES)K. Polymers have many small ...
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(Texas A&M University. Libraries, 1992)A new technique for functionalization of polyolefin surfaces using C-H bond activation catalysts has been developed. The Gif system which was developed by the Barton group as a model of methane monooxygenase has been ...
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(2020-05-13)Polymerization reactions are prone to runaway risks due to the unstable nature of monomers and the complex interactions between reactants. The major direct cause of polymerization runaway incidents is the deviation from ...
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(Texas A&M University. Libraries, 1979)A piezoelectric sorption apparatus is used to study the sorption of dichloromethane (DCM) in a polysulfone (PSF), a reactive plasticizer (RPS), and a mixture containing 70 wt. % PSF and 30 wt. % RPS. A general procedure ...
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(Texas A&M University. Libraries, 1993)Almost all engineering materials exhibit creep and relaxation behavior. The observed magnitude depends on temperature, stress level and loading duration. Some polymers are further influenced by moisture contents as well. ...
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(Texas A&M University. Libraries, 1986)The molecular weight distributions generated by Ziegler-Natta catalyzed polymerizations are examined. Only those catalysts with one type of catalytic species are considered. From the rate laws for propagation and elimination, ...