Sustained off-resonance irradiation collision-induced dissociation of linear, substituted and cyclic polyesters using a 9.4 T Fourier transform ion cyclotron resonance mass spectrometer

Eur. J. Mass Spectrom. 9, 117–128 (2003)
DOI: 10.1255/ejms.530

Sustained off-resonance irradiation collision-induced dissociation of linear, substituted and cyclic polyesters using a 9.4 T Fourier transform ion cyclotron resonance mass spectrometer

Liam A. McDonnell and Peter J. Derrick^*
Institute of Mass Spectrometry, Department of Chemistry, University of Warwick, Coventry, CV4 7AL, United Kingdom
Brian B. Powell and Philip Double
Avecia, Hexagon House, Blackley, Manchester, M9 8ZS, United Kingdom

ABSTRACT:

The fragment ions obtained from sustained off-resonance irradiation collision-induced dissociation of linear polyesters, substituted polyesters and cyclic polyesters have been characterized using a 9.4 T Fourier transform ion cyclotron resonance mass spectrometer. Charge-induced and charge-remote fragmentation channels, together with the participation of other nucleophilic groups, are proposed for the substituted polyesters. The linear polyesters were found to fragment at equivalent positions along the polymer chain whereas, under the experimental conditions employed, the cyclic polyester produced a single fragment.

Keywords: SORI, FT-MS, polyesters, ESI, charge-remote fragmentation

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