Molar mass effects in reversed-phase gradient polymer-elution chromatography of oligomers

H.J.A. Philipsen, B. Klumperman, F.A.M. Leermakers, F.P.C. Wubbe, A.L. German

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)

Abstract

The dependence on molar mass of the retention of oligomers in reversed-phase gradient polymer-elution chromatog. (RP GPEC) was studied. To this end a variety of oligomer series, including polystyrene (PS) and amorphous polyesters (PE) were chromatographed using different nonsolvent-solvent (NS-S) mobile phases and at different temps. Sigmoidally shaped curves were usually obtained for plots of amt. (%) of S against 1/?(molar mass) but the exact shape varied from almost linear to very convex. Increasing the temp. led to increased dependence of retention on the molar mass; this can be ascribed to a decrease in Flory-Huggins interaction parameters. Changing the NS-S system substantially affects the shape of the curves, but the effect is different for different oligomer series. From results from isocratic measurements for PS and a PE the effect of exptl. conditions can be ascribed to the relative contributions to retention of both end groups and of the monomer repeat units. Because these contributions are affected to different extents by chromatog. conditions, changing these conditions also affects the shape of the plot of the amt. of S against 1/?(molar mass). [on SciFinder (R)]
Original languageEnglish
Pages (from-to)533-540
JournalChromatographia
Volume55
Issue number9-10
DOIs
Publication statusPublished - 2002

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Polyesters
Molar mass
Polystyrenes
Chromatography
Oligomers
Polymers
Monomers

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Philipsen, H. J. A., Klumperman, B., Leermakers, F. A. M., Wubbe, F. P. C., & German, A. L. (2002). Molar mass effects in reversed-phase gradient polymer-elution chromatography of oligomers. Chromatographia, 55(9-10), 533-540. https://doi.org/10.1007/BF02492898
Philipsen, H.J.A. ; Klumperman, B. ; Leermakers, F.A.M. ; Wubbe, F.P.C. ; German, A.L. / Molar mass effects in reversed-phase gradient polymer-elution chromatography of oligomers. In: Chromatographia. 2002 ; Vol. 55, No. 9-10. pp. 533-540.
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Philipsen, HJA, Klumperman, B, Leermakers, FAM, Wubbe, FPC & German, AL 2002, 'Molar mass effects in reversed-phase gradient polymer-elution chromatography of oligomers', Chromatographia, vol. 55, no. 9-10, pp. 533-540. https://doi.org/10.1007/BF02492898

Molar mass effects in reversed-phase gradient polymer-elution chromatography of oligomers. / Philipsen, H.J.A.; Klumperman, B.; Leermakers, F.A.M.; Wubbe, F.P.C.; German, A.L.

In: Chromatographia, Vol. 55, No. 9-10, 2002, p. 533-540.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Philipsen, H.J.A.

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AU - German, A.L.

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AB - The dependence on molar mass of the retention of oligomers in reversed-phase gradient polymer-elution chromatog. (RP GPEC) was studied. To this end a variety of oligomer series, including polystyrene (PS) and amorphous polyesters (PE) were chromatographed using different nonsolvent-solvent (NS-S) mobile phases and at different temps. Sigmoidally shaped curves were usually obtained for plots of amt. (%) of S against 1/?(molar mass) but the exact shape varied from almost linear to very convex. Increasing the temp. led to increased dependence of retention on the molar mass; this can be ascribed to a decrease in Flory-Huggins interaction parameters. Changing the NS-S system substantially affects the shape of the curves, but the effect is different for different oligomer series. From results from isocratic measurements for PS and a PE the effect of exptl. conditions can be ascribed to the relative contributions to retention of both end groups and of the monomer repeat units. Because these contributions are affected to different extents by chromatog. conditions, changing these conditions also affects the shape of the plot of the amt. of S against 1/?(molar mass). [on SciFinder (R)]

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Philipsen HJA, Klumperman B, Leermakers FAM, Wubbe FPC, German AL. Molar mass effects in reversed-phase gradient polymer-elution chromatography of oligomers. Chromatographia. 2002;55(9-10):533-540. https://doi.org/10.1007/BF02492898