Journal article
Electron beam and UV cationic polymerization of glycidyl ethers PART II: Reaction of diglycidyl ether of bisphenol A
Journal of applied polymer science, v 130(1), pp 487-495
05 Oct 2013
Abstract
Electron-beam (e-beam) and ultraviolet (UV)-induced cationic polymerization of diglycidyl ether of bisphenol A (DGEBA) using the photo-initiator diaryliodonium hexafluoroantimonate was investigated using in situ NIR spectroscopy. The effect of processing parameters, such as temperature, radiation intensity, and photo-initiator concentration, on kinetics of the reaction were determined quantitatively. In contrast to the behavior of monofunctional epoxy systems reported previously, the difunctional epoxy forms a high T-g crosslinked network, so a kinetic model that takes into account diffusion limitations associated with vitrification was developed. The combined benefits of the real-time in situ NIR spectroscopy study and the well-defined diffusion model resulted in very accurate predictions for cure of epoxy networks by e-beam-induced polymerization. The results support the view that e-beam processing of epoxies is constrained by vitrification in the same way that UV and thermally cured epoxies are. (c) 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
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Details
- Title
- Electron beam and UV cationic polymerization of glycidyl ethers PART II: Reaction of diglycidyl ether of bisphenol A
- Creators
- Matteo Mascioni - Drexel UniversityNarendra N. Ghosh - Drexel UniversityJames M. Sands - United States Army Research LaboratoryGiuseppe R. Palmese - Drexel University
- Publication Details
- Journal of applied polymer science, v 130(1), pp 487-495
- Publisher
- Wiley
- Number of pages
- 9
- Grant note
- U.S. Army Research Laboratory (ARL); United States Department of Defense; US Army Research Laboratory (ARL) Strategic Environmental Research and Development Program (SERDP)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000321305500058
- Scopus ID
- 2-s2.0-84879900996
- Other Identifier
- 991019169702004721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Polymer Science