Microstructure of alkoxy and alkyl substituted isocyanate copolymers determined by desorption chemical ionization mass spectrometry

Guodong Chen, R. Graham Cooks, Salil K. Jha, Mark M. Green

Research output: Contribution to journalArticle

Abstract

Copolymers comprised of 3-(2-(2-methoxy)ethoxy)propyl isocyanate (monomer G) with 1-isocyanato-4,4,5,5,6,6,7,7,8,8,9,9,9-tridecafluorononane (monomer F) as well as copolymers of monomer G and n-hexylisocyanate (monomer H) were examined by desorption chemical ionization mass spectrometry (DCI-MS) to obtain information on the monomer distributions in the copolymers. The monomer distributions were deduced from the abundances of various protonated and ammoniated trimers in the ammonia DCI mass spectra using zero-order Markovian statistics. Both copolymers comprised of monomers G and F as well as monomers G and H were found to have random monomer distributions. This behavior is in contrast to copolymers comprised of monomers F and H whose dissimilar side chains resulted in non-random distributions.

Original languageEnglish (US)
Pages (from-to)149-154
Number of pages6
JournalAnalytica Chimica Acta
Volume356
Issue number2-3
DOIs
StatePublished - Dec 10 1997

Keywords

  • Desorption chemical ionization
  • Mass spectrometry
  • Polymer analysis

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy

Fingerprint Dive into the research topics of 'Microstructure of alkoxy and alkyl substituted isocyanate copolymers determined by desorption chemical ionization mass spectrometry'. Together they form a unique fingerprint.

  • Cite this