The fractionations of a hypothetical 250‐component system and an actual polymer were simulated by computations on a digital computer. The results indicated that Schulz's method of treating polymer fractionation data is acceptable if the fractions obtained are reasonably sharp. When extremely low molecular weight materials are present in the polymer, the computation shows that one must be very careful in computing the M̄u/M̄n ratio. A comparison of the computation result with the experimental result of a linear polyethylene fractionation indicates that the Flory‐Huggins' theory describes the liquid‐liquid phase separation of polymer solutions well.
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L. H. Tung (1962) studied this question.
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