Chromatography of polymers with reduced co-crystallization
AssigneeDow Global Technologies LLC
InventorsRongjuan Cong, Albert Parrott, Cherry Hollis, Charles Michael Cheatham
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Abstract
A temperature gradient chromatography, and apparatus for the same, said method comprising the following: a) dissolving a composition comprising at least one polymer in at least one solvent, to form a polymer solution; b) injecting at least a portion of the polymer solution onto a support material and wherein the support material has a CI from 0.70 to 1.50; c) cooling the support material at a rate greater than, or equal to, 0.2° C./min; d) increasing the temperature of the support material to elute at least some of the polymer; e) generating the chromatogram.
Claims7
A method to analyze a polymer solution using a temperature gradient chromatography, said method comprising the following:
- a) dissolving a composition comprising at least one polymer in at least one solvent, to form the polymer solution;
- b) injecting at least a portion of the polymer solution onto a support material and wherein the support material has a Co-Crystallization Index (CI) from 0.70 to 1.50;
- c) cooling the support material at a rate greater than, or equal to, 0.2° C./min;
- d) increasing the temperature of the support material to elute at least some of the polymer;
- e) generating a chromatogram.
An apparatus for polymer chromatography, comprising at least one column that comprises a support material, and wherein the support material has a Co-Crystallization Index (CI) from 0.70 to 1.50, and wherein the support material comprises an inert material.
Dependencies are inferred from the claim text.