Low-energy vibrational density of states of plasticized poly(methyl methacrylate)

2001/04/10 by L. Saviot, E. Duval, J. F. Jal +4
Physics and Astronomy · #cond-mat.soft

paper · pdf · doi:10.1080/13642810110085208

published as Phil. Mag. B, 82 (2002) 533-539 · 9 pages, 2 figures (Workshop on Disordered Systems, Andalo)

arxiv created 2001/04/10 · arxiv updated 2009/11/30

Abstract

The low-energy vibrational density of states (VDOS)of hydrogenated or deuterated poly(methyl methacrylate)(PMMA)plasticized by dibutyl phtalate (DBP) is determined by inelastic neutron scattering.From experiment, it is equal to the sum of the ones of the PMMA and DBP components.However, a partition of the total low-energy VDOS among PMMA and DBP was observed.Contrary to Raman scattering, neutron scattering does not show enhancement of the boson peak due to plasticization.

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