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Polymer blends of various compositions were analysed by liquid chromatography at the critical point of adsorption. By operating at the critical point of one blend component, it is possible to separate the blend regardless of the chemical structure and the molar mass of the second blend component. In addition, the molar mass and the molar-mass distribution of the second blend component may be determined via a conventional size exclusion chromatography procedure. It is shown that, in addition to homopolymer blends, blends comprising a copolymer as one component may be separated.

Посилання на статтю:

Chromatographic investigations of macromolecules in the critical range of liquid chromatography: 3. Analysis of polymer blends / H. Pasch // Polymer. – 1993. – Vol 34. – P. 4095-4099.

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