Sep 2009- Oct 2010: Leibniz Institute of Polymer Research, Dresden, Germany.

Apr 2012- May 2012: Laboratory of Applied Rheology and Polymer Processing, Katholieke Universiteit, Leuven, Department of Chemical Engineering, Belgium.

Dec 2012- Feb 2013: AMME-LECAP, EA 4528 International Laboratory, Institute of Material Research FED4114, Université de Rouen, Faculté des Sciences, Avenue de l’Université BP 12, 76801 Saint Etienne du Rouvray, France.