Chad Snyder - Polymer Chain Dynamics in Intercalated Poly(ε-caprolactone)/Nanoplatelet Blends

Document created by Chad Snyder on Aug 28, 2014
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  Publication Details (including relevant citation   information):

  K.A. Masser, H. Yuan, A. Karim and C.R. Snyder,   Macromolecules 46, 2235-2240 (2013).


  The dynamics of poly(ε-caprolactone) (PCL) blends with small   amounts of Cloisite 30B nanoplatelets were investigated via   broadband dielectric relaxation spectroscopy. The terminal   relaxation, or normal mode of PCL, was found to be strongly   influenced by the presence of the nanoplatelets, exhibiting a   relaxation from PCL chains within the Cloisite platelets as well   as a bulk-like relaxation. These results, as well as X-ray   scattering and rheological results from the literature, help to   form a clearer picture of how the structure and dynamics relate   to the bulk physical properties in these systems. Cloisite was   observed to have minimal impact on both the glassy state dynamics   as well as the segmental dynamics, due to the relatively weak   interactions
  between the polymer and the platelets.

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