Combination of high performance refractometry and infrared spectroscopy as a probe for chemically induced gelation and vitrification of epoxies

Müller, Ulrich; Philipp, Martine; Gervais, P. C.; Possart, Prof Dr Wulff; Wehlack, C.; Kieffer, J.; Sanctuary, Roland; Krüger, Jan-Kristian

doi:10.1088/1367-2630/12/8/083036

Reference : Combination of high performance refractometry and infrared spectroscopy as a probe fo...


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics Engineering, computing & technology : Materials science & engineering
	To cite this reference:	http://hdl.handle.net/10993/13864

Title :	Combination of high performance refractometry and infrared spectroscopy as a probe for chemically induced gelation and vitrification of epoxies
Language :	English
Author, co-author :	Müller, Ulrich [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
	Philipp, Martine [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
	Gervais, P. C. [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
	Possart, Prof Dr Wulff [Fachbereich Werkstoffwissenschaften, Universität des Saarlandes, Germany]
	Wehlack, C. [Fachbereich Werkstoffwissenschaften, Universität des Saarlandes, Germany]
	Kieffer, J. [Department of Materials Science and Engineering, University Michigan, United States]
	Sanctuary, Roland [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
	Krüger, Jan-Kristian [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Publication date :	2010
Journal title :	New Journal of Physics
Publisher :	Institute of Physics
Volume :	12
Pages :	083036-083036
Peer reviewed :	Yes (verified by ORBi^lu)
Audience :	International
ISSN :	1367-2630
City :	Bristol
Country :	United Kingdom
Abstract :	[en] A combination of infrared spectroscopy and high performance refractometry was used to investigate the chemically induced sol-gel and glass transition during the polymerization of epoxies. Representations of the refractive index versus chemical conversion reveal an interesting insight in the optical properties accompanying gelation and vitrification. Whereas the electronic polarizability of the liquid state of small average molecular mass and the glassy state is dominated by the mass density, an unexpected excess polarizability observed during the gelation is attributed to cooperative dipole-dipole interactions.
Permalink :	http://hdl.handle.net/10993/13864
DOI :	10.1088/1367-2630/12/8/083036
Commentary :	3312

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Open access	2010MullerPhilippGervaisPossartWehlackKiefferSantuaryKruger.pdf		Publisher postprint	1.23 MB	View/Open

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