Nanostructure and low-frequency vibrations in plasticized poly(methyl methacrylate)

Authors
Duval, E Kozanecki, M Saviot, L David, L Etienne, S Bershtein, VA Ryzhov, VA
Citation
E. Duval et al., Nanostructure and low-frequency vibrations in plasticized poly(methyl methacrylate), EUROPH LETT, 44(6), 1998, pp. 747-752
Citations number
18
Categorie Soggetti
Physics
Journal title
EUROPHYSICS LETTERS
ISSN journal
02955075 → ACNP
Volume
44
Issue
6
Year of publication
1998
Pages
747 - 752
Database
ISI
SICI code
0295-5075(199812)44:6<747:NALVIP>2.0.ZU;2-P
Abstract
The small-angle X-ray scattering (SAXS) and the low-frequency Raman scatter ing (LFRS) of pure and plasticized poly(methyl methacrylate) (PMMA) samples are compared. A correlation peak in SAXS appears in plasticized PMMA at ab out 0.15 Angstrom(-1), which does not exist in pure PMMA. An increase of th e boson peak intensity with the amount of plasticizer is observed. These ob servations allow to sustain the relation between the boson peak and inhomog eneous nanostructure in glasses.