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MALDI-TOF Mass Spectral Characterization of Covalently-Cationized Polystyrene



Sheng Lin-Gibson, S Bencherif, Kathryn Beers, H M. Byrd


Bromine terminated, controlled molecular mass polystyrene with narrow polydispersity (Mn 40 000 g/mol, PD = 1.08) was prepared by atom transfer radical polymerization. The bromine end group was subsequently substituted with a phosphonium salt. We report the highest molecular mass polymer detected to date by MALDI analysis using chain-end functionalization for ionization. A similar molecular mass and molecular mass distribution determined by MALDI analysis was observed for Br-terminated polymer ionized using traditional metal cationization and the chain-end functionalized polymer. In addition, these molecular mass moments were consistent with moments determined by traditional methods.
No. 13


chemical modification, MALDI-TOF MS, polystryene


Lin-Gibson, S. , Bencherif, S. , Beers, K. and Byrd, H. (2003), MALDI-TOF Mass Spectral Characterization of Covalently-Cationized Polystyrene, Macromolecules, [online], (Accessed June 17, 2024)


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Created June 30, 2003, Updated October 12, 2021