Abstract
The potential of critical chromatography is considered for determination of the arm length distribution of branched star macromolecules. In the critical regime of separation, the retention volumes of macromolecules containing adsorbable terminal groups are shown to reflect the distribution of the macromolecules according to their arm lengths. By the example of OH-terminated propylene oxide oligomers produced on the basis of glycerol, it is established that the model of separation of starlike Gaussian chains matches the experimental data.
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