Methods for probing the long range dynamic of confined polymer in nanoparticles using small angles neutrons scattering

Yahya Rharbi (1) , Mohamed Yousfi (1) , Lionel Porcar (2) , Qamar Nawaz (1)

1 LR - Laboratoire de rhéologie
2 ILL - Institut Laue-Langevin

Motivated by the recent advances in new technologies, a lot of effort has been dedicated to developing methods for quantifying the dynamic of nanoconfined polymers. Particularly, polymers confined in nanoparticles are an important system for several environment-friendly applications such as waterborne coatings and nanoblends. In this work, we discuss two methods to probe the large scale dynamic of nanoconfined polymers in nanoparticles in two situations: (i) nanoblends and (ii) the close-packed structure. In the methods we apply stress at the nanoscopic level around the polystyrene particles and we probe their deformation in real time using small-angle neutron scattering. These methods give new possibilities to probe, in a nonintrusive manner, the dynamic of confined polymers in nanoparticles, which could ultimately bring conclusive insight to this field.

Mots clés: polymer nanoparticles; Polymer dynamic; confinement; nanoblends; polymer nanoparticles.

Domaines: Matériaux

Yahya Rharbi, Mohamed Yousfi, Lionel Porcar, Qamar Nawaz. Methods for probing the long range dynamic of confined polymer in nanoparticles using small angles neutrons scattering. Canadian Journal of Chemistry, 2010, 88 (3), pp.288-297. ⟨10.1139/V09-178⟩. ⟨hal-00510361⟩