Nanomechanical Properties of NanoConfined Polystyrene Nanoparticles in Nanoblends | Zendy

Yahya Rharbi | Zendy; Mohamed Yousfi | Zendy

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Nanomechanical Properties of NanoConfined Polystyrene Nanoparticles in Nanoblends

Author(s) -

Yahya Rharbi,

Mohamed Yousfi

Publication year - 2007

Publication title -

hal (le centre pour la communication scientifique directe)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.4267/2042/16075

Subject(s) - polystyrene , materials science , glass transition , polymer , nanoparticle , neutron scattering , work (physics) , chemical engineering , scattering , composite material , nanotechnology , optics , thermodynamics , physics , engineering

International audienceThe role of nanoconfinement on the glass transition temperature (Tg) of polymers has been extensively studied in the thin film geometry. This work looks at the Tg of nanoconfined polystyrene in spherical nanoparticles (27- 200 nm), individually dispersed in crosslinked polybuthylmethacrylate matrices. A reduction of Tg compared to the bulk was observed in PS nanospheres via neutron scattering-mechanical tests and was found to decrease with decreasing diameter for D< 50nm. The general trend of Tg depression in nanospheres was found to be similar to the results on thin film geometry

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