✦ LIBER ✦

Methods for the Analysis of Hydrocarbon Polymers by Matrix-assisted Laser Desorption/Ionization Time-of-flight Mass Spectrometry

✍ Scribed by Paul O. Danis; Dane E. Karr; Yansan Xiong; Kevin G. Owens

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 513 KB
Volume: 10
Category: Article
ISSN: 0951-4198
DOI: 10.1002/(sici)1097-0231(199605)10:7<862::aid-rcm578>3.0.co;2-x

No coin nor oath required. For personal study only.

✦ Synopsis

With the addition of silver acetoacetonate to matrices of trans-3-indoleacrylic acid or 1,4-di-(2-(5-phenyloxazolyl))benzene, methods have been developed for the analysis of hydrocarbon polymers by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry. Silver-cationized molecular ions were produced for polymers of styrene, butadiene and isoprene up to mass 125 OOO D a For lower-mass styrene polymers, the resolved oligomer molecular ions provide information concerning the end group. Average molecular weights determined by MALDI-TOF are in good agreement with values from gel-permeation chromatography.

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