| Abstract: | The hypothetical fractionation of polyethylene–polypropylene blends was carried out by assuming adequate molecular weight distribution and partition of polymer between two liquid phases for each hompolymer, and also by using the previously reported data of the molecular weight dependence on solubility. The experimental fractionation of blends was also carried out by the solvent gradient method, and the results were compared with those obtained by the hypothetical fractionation. Both results agreed fairly well in various distribution forms. Therefore, these results may provide valuable information for component or compositional analysis of unknown samples or copolymerization products. |
