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000858952 1001_ $$0P:(DE-HGF)0$$aWeidner, Maren Christin$$b0$$eCorresponding author
000858952 245__ $$aMolecular Motion in Viscous DGEBA with Nanoparticles as Seen by Quasi-Elastic Neutron Scattering
000858952 260__ $$aWeinheim$$bWiley-VCH$$c2019
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000858952 500__ $$aSpecial Issue: Dedicated to Prof. Hatsuo Ishida on the Occasion of His 70th Birthday
000858952 520__ $$aPure and filled epoxies are widely used in industry. Nanocomposites especially are affected by interphase regions where properties deviate from bulk. The study of molecular mobility in epoxy monomers is a first step to understanding the molecular dynamics in nanocomposites and their effect on crosslinking in epoxy networks. Here, quasi‐elastic neutron scattering is used to disentangle the molecular motions of monomeric diglycidylether of Bisphenol A (DGEBA) and a suspension of zeolite nanoparticles in DGEBA on a timescale from 2 ps to 5.5 ns. Regarding molecular transport of DGEBA inside the suspension, the particles have no impact on the faster rotational motions. A combination of neutron time‐of‐flight and backscattering spectroscopy reveals a pronounced hindrance of DGEBA molecular dynamics on/in the zeolite particles along with a new type of molecular motion occurring on intermediate timescales. That localized motion is attributed to jump diffusion motions, emanating from interphase effects at the zeolite particles.
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000858952 7001_ $$0P:(DE-Juel1)131056$$aZamponi, Michaela$$b2$$ufzj
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000858952 773__ $$0PERI:(DE-600)1475026-0$$a10.1002/macp.201800275$$gp. 1800275 -$$n1$$p1800275$$tMacromolecular chemistry and physics$$v220$$x1022-1352$$y2019
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