MALDI MS Characterization of Covalent Cationized Polyethylene

Published

August 1, 2002

Author(s)

Sheng Lin-Gibson, D L. Brunner, David L. VanderHart, Barry J. Bauer, B M. Fanconi, Kathleen M. Flynn, William E. Wallace

Abstract

Polyolefins, saturated hydrocarbon polymers such as polyethylene (PE) and polypropylene, are, by production volume, the most widely used of all A new method for the mass spectrometry of saturated polyolefins whereby an organic cation is covalently bonded to the polymer to produce the necessary ionization for the creation of intact gas phase macromolecules by matrix-assisted laser desorption/ionization (MALDI) was explored. This method produced mass spectra for higher molecular mass materials than had been achieved previously. NIST Standard Reference Material polyethylenes were extensively studied and found to give molecular masses that were systematically low, typically about two-thirds of the values determined classically. Reasons for this discrepancy are explored and discussed.

Proceedings Title

American Chemical Society; Division of Polymer Chemistry, National Meeting | 224th | | American Chemical Society (ACS)

Volume

43

Issue

No. 2

Conference Dates

August 1, 2002

Conference Title

Polymer Preprints

Pub Type

Conferences

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Keywords

convalent ctionization, MALDI, molecular weight characterization, polyolefin

Citation

Lin-Gibson, S. , Brunner, D. , VanderHart, D. , Bauer, B. , Fanconi, B. , Flynn, K. and Wallace, W. (2002), MALDI MS Characterization of Covalent Cationized Polyethylene, American Chemical Society; Division of Polymer Chemistry, National Meeting | 224th | | American Chemical Society (ACS), [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852033 (Accessed October 4, 2024)