A new method for mass spectrometry of polyethylene waxes: The chloride ion attachment technique by atmospheric pressure photoionization

Sándor Kéki, Lajos Nagy, Ákos Kuki, Miklós Zsuga

Research output: Article

17 Citations (Scopus)

Abstract

Mass spectrometric characterization of low molecular weight polyethylene (LP-PE) by atmospheric pressure photoionization (APPI) using the chloride attachment technique has been reported. LP-PE was obtained through extraction of high-density polyethylene (HDPE) with hexane. APPI quadrupole time-of-flight mass spectrometric (APPI-Qq-TOF MS) measurements were performed in the positive and negative ion modes with a Qq-TOF MS instrument, which was equipped with an APPI source. The positive ion mode of the APPI-MS of PE exhibited significant fragmentation of the PE chains. The negative ion mode revealed minimal or no fragmentations of PE chains, thereby allowing the determination of their repeat unit and end groups. It was suggested that the chloride ion attachment can be applied to the analysis of other nonpolar polymer compounds, which are typically very difficult to ionize using different soft-ionization methods.

Original languageEnglish
Pages (from-to)3772-3774
Number of pages3
JournalMacromolecules
Volume41
Issue number11
DOIs
Publication statusPublished - jún. 10 2008

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ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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