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- Title
Structure and Dynamics in Hydrophilic Polymer/ Layered Silicate Nanocomposites.
- Authors
Chrissopoulou, Kiriaki; Fotiadou, Sapfo; Frick, Bernhard; Anastasiadis, Spiros H.
- Abstract
The research efforts on the structure and dynamics of three different nanohybrid systems composed of hydrophilic polymers and layered silicates are summarized. A hydrophilic sodium montmorillonite, Na+-MMT, is utilized as the inorganic material whereas three different polymers, poly(ethylene oxide), PEO, poly(hexa(ethylene glycol) methacrylate), PHEGMA, and a hyperbranched polyesteramide, Hybrane S 1200, were used in order of increasing complexity. In all cases, intercalated structures have been identified. We used quasi elastic neutron scattering, QENS, to investigate the effect of nanoconfinement on polymer dynamics by studying nanohybrids in which all polymer is confined within the inorganic galleries. The segmental dynamics in confinement are significantly influenced by the polymer-surface interactions whereas the more local motions remain unaffected.
- Subjects
HYDROPHILIC compounds; SILICATES; POLYMERIC nanocomposites; NANOCOMPOSITE materials; QUASIELASTIC neutron scattering
- Publication
Macromolecular Symposia, 2013, Vol 331-332, Issue 1, p50
- ISSN
1022-1360
- Publication type
Article
- DOI
10.1002/masy.201300075