POLYMER CHARACTERIZATION BY LASER-DESORPTION WITH MULTIPHOTON IONIZATION OF END-GROUP CHROMOPHORES

Authors
DEVRIES MS HUNZIKER HE
Citation
Ms. Devries et He. Hunziker, POLYMER CHARACTERIZATION BY LASER-DESORPTION WITH MULTIPHOTON IONIZATION OF END-GROUP CHROMOPHORES, Applied surface science, 106, 1996, pp. 466-472
Citations number
16
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical","Materials Science, Coatings & Films
Journal title
Applied surface science → ACNP
ISSN journal
01694332
Volume
106
Year of publication
1996
Pages
466 - 472
Database
ISI
SICI code
0169-4332(1996)106:<466:PCBLWM>2.0.ZU;2-Y
Abstract
We have used a combination of laser desorption, separate multiphoton i onization, and mass spectrometry to characterize films of perfluorinat ed polyethers. Photoionization is achieved through end group chromopho res, which are either present in the polymer or chemically attached. T he technique provides parent molecular weight distributions without fr agmentation. Examples are given of end group analysis, wavelength depe ndent spectroscopy, analysis of repeat unit distributions in copolymer s, and polymer degradation analysis.