Sarah Saidi earned a Master degree in Chemistry entitled Synthesis, Characterization and Environment in 2016 and then achieved in 2020 a PhD in material science at the Université de Lorraine. During her PhD, she worked in close collaboration with the SAXS/WAXS beamline in DUBBLE at the ESRF (Grenoble, France) and Arkema (Serquigny, France). Her doctoral dissertation is entitled ‘Multi-length scales study on the impact of fluoroelastomer addition on the PVDF structure by coupled in situ measurements’ such as simultaneous SAXS/WAXS/DSC/Raman with application of Multivariate Analysis. Now, she is a Researcher in the Physical and Chemical Analysis Department at Teijin Aramid in Arnhem (NL), where she works on UHMWPE and aramid fibers.