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Simultaneous SAXS and WAXS Study of the Isothermal Crystallization in Polyolefin Blends

Published

Author(s)

Haonan Wang, G Z. Wang, Charles C. Han, B S. Hsiao

Abstract

We have used simultaneous SAXS and WAXS by synchrotron radiation to study crystallization in a statistic ethylene/hexene (PEH) copolymer and its blend with another copolymer of ethylene/butene (PEB). Scattering invariant, long period, L, and crystallinity, Xc, are quantified from the measurements. It is revealed that L decreases and increases with time at low and high isothermal temperatures, respectively. A comparison of the final L and Xc between pure PEH and a blend with PEB suggest liquid-liquid phase separation plays a role in morphology development.
Citation
Journal of the American Chemical Society
Volume
222

Keywords

blend, crystallization, phase separation, polyolefin, SAXS, WAXS

Citation

Wang, H. , Wang, G. , Han, C. and Hsiao, B. (2001), Simultaneous SAXS and WAXS Study of the Isothermal Crystallization in Polyolefin Blends, Journal of the American Chemical Society, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=851886 (Accessed June 19, 2024)

Issues

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Created July 31, 2001, Updated October 12, 2021