Microstructural and conformational studies of polyether copolymers

Anthony T. Jackson, James Scrivens, Jonathan P. Williams, Erin Shammel Baker, Jennifer Gidden, Michael T. Bowers

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    61 Citations (Scopus)

    Abstract

    A combined structural/conformational study of ethylene oxide/propylene oxide (EO/PO) copolymers has been undertaken. Electrospray ionisation (ESI) and matrix-assisted laser desorption/ionisation (MALDI) methods have been utilised and ESI-tandem mass spectrometry (MS/MS) product ion spectra, including accurate mass measurements, utilised to establish fragmentation pathways. This has enabled end group and sequence information to be obtained. Ion mobility mass spectrometry experimental, along with theoretical, approaches has been used in tandem to probe the gas-phase conformation of selected cationised species from the block and random copolymers. The cross-sections established from these measurements and calculations have been shown to be dependent on molecular weight of the oligomer and radii of the cation but largely independent of the sequence of the ion in the gas-phase. The ion mobility results have been used to aid the understanding of the fragmentation of these copolymers by means of ESI-MS/MS.

    Original languageEnglish
    Pages (from-to)287-297
    Number of pages11
    JournalInternational Journal of Mass Spectrometry
    Volume238
    Issue number3 SPEC. ISS.
    DOIs
    Publication statusPublished - 15 Nov 2004

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    Jackson, A. T., Scrivens, J., Williams, J. P., Baker, E. S., Gidden, J., & Bowers, M. T. (2004). Microstructural and conformational studies of polyether copolymers. International Journal of Mass Spectrometry, 238(3 SPEC. ISS.), 287-297. https://doi.org/10.1016/j.ijms.2004.09.025