Crystallization Elution Fractionation. A New Separation Process for Polyolefin Resins

Polyolefin Characterization. Macromolecular Symposia.
Volume 257, 2007, Pages 71-79.
B. Monrabal, J. Sancho-Tello, N. Mayo, L. Romero.
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Abstract:

New crystallization procedures have been developed for the analysis of the chemical composition distribution in polyolefins by pumping a small flow of solvent during the crystallization cycle. One of the new techniques, crystallization elution fractionation (CEF) combines the separation power of TREF and CRYSTAF and has been shown to provide very fast analysis of the composition distribution.