Advances in Crystallization Elution Fractionation

Polyolefin Characterization, ICPC 2008. Macromolecular Symposia.
Volume 282, 2009, Pages 14-24.
B. Monrabal, L. Romero, N. Mayo, J. Sancho-Tello.
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Abstract:

Crystallization Elution Fractionation has been optimized to improve resolution power and reduce co-crystallization. The most important step to be optimized is the first separation cycle of Dynamic Crystallization which can be investigated with the help of Crystallization Analysis Fractionation experiments. A new approach to reduce co-crystallization and improve resolution is presented by applying successive cooling and heating cycles in a long column. The new process known as Multiple Crystallization Elution Fractionation adds extended separation at each cooling and heating cycles.