Direct small-angle-neutron-scattering observation of stretched chain conformation in nanocomposites: More insight on polymer contributions in mechanical reinforcement | Zendy

Nicolas Jouault | Zendy; Florent Dalmas | Zendy; Sylvère Saïd | Zendy; Emanuela Di Cola | Zendy; Ralf Schweins | Zendy; Jacques Jestin | Zendy; François Boué | Zendy

Open Access

Direct small-angle-neutron-scattering observation of stretched chain conformation in nanocomposites: More insight on polymer contributions in mechanical reinforcement

Author(s) -

Nicolas Jouault,

Florent Dalmas,

Sylvère Saïd,

Emanuela Di Cola,

Ralf Schweins,

Jacques Jestin,

François Boué

Publication year - 2010

Publication title -

physical review e

Language(s) - English

Resource type - Journals

eISSN - 1550-2376

pISSN - 1539-3755

DOI - 10.1103/physreve.82.031801

Subject(s) - materials science , polymer , neutron scattering , deformation (meteorology) , small angle neutron scattering , chain (unit) , nanocomposite , composite material , reinforcement , polymer nanocomposite , scattering , optics , physics , astronomy

International audienceIn this paper we present a direct measurement of stretched chain conformation in polymer nanocomposites in a large range of deformation using a specific contrast-matched SANS method. Whatever the filler structure and the chain length the results show a clear identity of chain deformation in pure and reinforced polymer and offer a new insight of the polymer chain contribution in the mechanical reinforcement. It suggests that glassy layer or glassy paths, recently proposed, should involve only a small fraction of chains. As a result, the remaining filler contribution appears strikingly constant with deformation as explained by continuous locking-unlocking rearrangement process of the particles

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