![Brillouin Light Scattering has revealed the presence of an interfacial layer that controls mechanical reinforcement. By fitting BLS data (red) with a continuum model (blue) the shear modulus of the interface was determined. Inset: The BE SPM work has enab Brillouin Light Scattering has revealed the presence of an interfacial layer that controls mechanical reinforcement. By fitting BLS data (red) with a continuum model (blue) the shear modulus of the interface was determined. Inset: The BE SPM work has enab](/sites/default/files/styles/list_page_thumbnail/public/Glassy%20Polymer%20Nanocomposites%20image%20for%20HL_0.png?itok=ZeKLVGfW)
Scientists have unraveled details of the mechanism of mechanical reinforcement in glassy polymer nanocomposites.1 Measurements in the interfacial layer ~2–4 nm around nanoparticles revealed that Young’s modulus, which defines the relationship between