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Structure and Dynamics in Hydrophilic Polymer/ L ayered Silicate Nanocomposites
Author(s) -
Chrissopoulou Kiriaki,
Fotiadou Sapfo,
Frick Bernhard,
Anastasiadis Spiros H.
Publication year - 2013
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201300075
Subject(s) - polymer , materials science , nanocomposite , ethylene oxide , silicate , ethylene glycol , chemical engineering , neutron scattering , polymer chemistry , montmorillonite , methacrylate , molecular dynamics , chemistry , scattering , composite material , copolymer , computational chemistry , physics , optics , engineering
Summary 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.