Ester methyl group dynamics in the poly(methyl methacrylate) stereocomplex: A neutron scattering study.

Authors
Pillay, R Arrighi, V Kagunya, W Higgins, JS
Citation
R. Pillay et al., Ester methyl group dynamics in the poly(methyl methacrylate) stereocomplex: A neutron scattering study., MACRO SYMP, 166, 2001, pp. 269-276
Citations number
17
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR SYMPOSIA
ISSN journal
10221360 → ACNP
Volume
166
Year of publication
2001
Pages
269 - 276
Database
ISI
SICI code
1022-1360(200103)166:<269:EMGDIT>2.0.ZU;2-G
Abstract
Quasielastic neutron scattering was employed to investigate the ester methy l group dynamics of isotactic poly(methyl methacrylate) (PMMA) and atactic PMMA when incorporated into the PMMA stereocomplex. The data were analysed using the Rotational Rate Distribution Model. The results were compared to those for atactic PMMA and a non-complexed blend of isotactic PMMA and atac tic PMMA. The activation energy, attempt frequency and variance values of t he isotactic PMMA ester methyl group in the stereocomplex suggests that thi s group is involved in an interaction within the stereocomplex.