Time-of-flight secondary ion mass spectrometry investigation of epoxy resin curing behavior in real time

Awaja, Firas, van Riessen, Grant, Fox, Bronwyn, Kelly, Georgina and Pigram, Paul J. 2009, Time-of-flight secondary ion mass spectrometry investigation of epoxy resin curing behavior in real time, Journal of applied polymer science, vol. 113, no. 5, pp. 2765-2776, doi: 10.1002/app.30136.

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Title Time-of-flight secondary ion mass spectrometry investigation of epoxy resin curing behavior in real time
Author(s) Awaja, Firas
van Riessen, Grant
Fox, Bronwyn
Kelly, Georgina
Pigram, Paul J.
Journal name Journal of applied polymer science
Volume number 113
Issue number 5
Start page 2765
End page 2776
Total pages 12
Publisher John Wiley & Sons
Place of publication Hoboken, N. J.
Publication date 2009-04-29
ISSN 0021-8995
Keyword(s) adhesives
mass spectrometry
Summary Time-of-flight secondary ion mass spectrometry and principal components analysis were used in real time to monitor the progress of curing reactions on the surface of a diglycidyl ether of bisphenol A (DGEBA) and diglycidyl ether of bisphenol F (DGEBF) epoxy resin blend reacted with the diamine hardener isophorone diamine at different time intervals. Molecular ions in the mass spectra that characterized the curing reactions steps, including blocking, coupling, branching, and crosslinking, were identified. The aliphatic hydrocarbon ions were correlated to the curing reaction rate, and this indicated that coupling and branching occurred much faster than the blocking and crosslinking curing reactions steps. The total conversion of the coupling and branching reaction steps were followed on the basis of changes with time in the relative ion intensity of molecular ions assigned to the DGEBA/DGEBF, aliphatic hydrocarbon, epoxide, and aromatic ring structures. Indicative measures of crosslinking density were monitored through the observation of changes in the ratio of the relative intensities of the aliphatic hydrocarbon and hydroxyl molecular ions over time. The curing reaction conversion was established by the observation of the changes in the relative ion intensity of the molecular ions that were related to the DGEBA/ DGEBF molecules.
Language eng
DOI 10.1002/app.30136
Field of Research 091202 Composite and Hybrid Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2009, Wiley Periodicals, Inc.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30028423

Document type: Journal Article
Collections: Centre for Material and Fibre Innovation
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