A method for studying polymer aggregation properties by gas chromatography. According to the personal database, gas chromatography takes the substance to be studied as the mobile phase, and the stationary liquid is coated on the surface of the carrier as the stationary phase. The "reverse phase" in this experiment takes the object to be studied (polymer sample) as the stationary phase and the probe molecules as the mobile phase together with the carrier gas, which is called "reverse phase gas chromatography".