Separation of ethoxylated bisphenol A dimethacrylates in dental composite after derivatisation to ionisable amines by capillary zone electrophoresis.

@article{Musenga2004SeparationOE,
  title={Separation of ethoxylated bisphenol A dimethacrylates in dental composite after derivatisation to ionisable amines by capillary zone electrophoresis.},
  author={Alessandro Musenga and Andreas Schedle and Uwe Demelbauer and Leopold Kremser and Maria Augusta Raggi and Ernst Kenndler},
  journal={Journal of chromatography. A},
  year={2004},
  volume={1034 1-2},
  pages={221-6}
}
Bisphenol A ethoxylate dimethacrylates (Bis-EMA) are transformed into ionisable amines by derivatisation in order to make the analytes applicable to capillary electrophoresis. For this goal, piperidine was added onto the C=C double bond of the alpha,beta-unsaturated ester group forming a tertiary amine with pKa values between 9 and 10. Formation of the derivatives was confirmed by electrospray ionisation MS. Commercial Bis-EMA is a mixture of homologues with different number of ethoxy groups… CONTINUE READING
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