15 research outputs found
State of Utah v. Marie S. McKinnon : Brief of Appellee
Get PDFBRIEF OF APPELLEE APPEAL FROM THE DISMISSAL OF A CHARGE OF FALSE NOTARIAL CERTIFICATION, A CLASS B MISDEMEANOR, IN THE FIRST JUDICIAL DISTRICT COURT, BOX ELDER COUNTY, THE HONORABLE BEN H. HADFIELD PRESIDIN
The Crystallization of Polyethylenes at high Supercooling: a Synchrotron X-ray Study
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Morphological Characterization and Thermal Stability of Quenching-Induced, Disordered Semicrystalline Polyethylene
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The Supramolecular Organization of Regularly (Hexyl) Branched Polyethylenes
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Phase densities and lamellar morphologies of semicrystalline polyethylenes via absolute small-angle X-ray scattering measurements
Get PDF© 2015 International Union of Crystallography. With the crystalline volume fraction from small-angle X-ray scattering (SAXS) and the density of the crystalline phase from wide-angle X-ray diffraction, the amorphous phase density of two representative polyethylenes was calculated as a function of temperature using the absolute total SAXS scattering power or invariant. The density of the amorphous phase in semicrystalline polyethylene is crystallinity independent and is lower than melt-extrapolated values reported in the literature. Model-independent SAXS-based crystallinity values can be calculated with the aid of the densities of the crystalline and amorphous phase and the absolute SAXS invariant. Such model-independent crystallinity values can be used in SAXS curve-shape analysis procedures to obtain the average thickness of the crystalline and amorphous layers also in the case of non-ideal lamellar semicrystalline polymer morphologies for which the number-average long period cannot be retrieved from the maxima in correlation functions or interface distribution functions.status: publishe
Phase Densities and Crystallinities in Semicrystalline Polyethylenes via Absolute SAXS Measurements
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