Chromatography of polyolefin polymers using a stationary phase of graphite carbon

摘要

A method for one-dimensional chromatography of a polyolefin polymer, which comprises introducing a solution of the polyolefin polymer in a liquid flowing through a stationary phase of liquid chromatography, the stationary phase of liquid graphite carbon chromatography comprising the polyolefin polymer resulting from the stationary phase of liquid chromatography has a retention factor greater than zero, and in which the solution introduced in the stationary phase of liquid chromatography is subjected to a temperature gradient or the solution is subjected to a solvent gradient and a temperature gradient .