Russian Chemical Bulletin

, Volume 56, Issue 7, pp 1369–1373

Study of synthetic aliphatic copolyamides by time-of-flight matrix assisted laser desorption/ionization mass spectrometry

  • V. G. Zaikin
  • R. S. Borisov
  • N. Yu. Polovkov
  • V. V. Lobodin
Article

Abstract

Synthetic copolyamides based on aliphatic diamines (1,3-propanediamine and 1,4-butanediamine) and dichlorides of aliphatic carboxylic acids (adipic and sebacic acid dichlorides) were investigated using time-of-flight matrix assisted laser desorption/ionization mass spectrometry. Their mass spectra showed peaks for cationized (Na+ and K+) and protonated (less intense peaks) oligomers with NH2-NH2, NH2-COOH, or COOH-COOH end groups. No cyclic oligomers were detected in the samples. The compositions of oligomers were determined, and the relative reactivities of homologous comonomers in polycondensation were estimated.

Key words

copolyamides oligomers time-of-flight mass spectrometry matrix assisted laser desorption/ionization 

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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • V. G. Zaikin
    • 1
  • R. S. Borisov
    • 1
  • N. Yu. Polovkov
    • 1
  • V. V. Lobodin
    • 2
  1. 1.A. V. Topchiev Institute of Petrochemical SynthesisRussian Academy of SciencesMoscowRussian Federation
  2. 2.Department of ChemistryM. V. Lomonosov Moscow State UniversityMoscowRussian Federation

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