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Updated: May 9, 2026

Advanced Compositional Analysis of Nanoparticle-polymer Composites Using Direct Fluorescence Imaging
Published on: July 19, 2016
Hydration and dynamic state of nanoconfined polymer layers govern toughness in nacre-mimetic nanocomposites
Tuukka Verho1, Mikko Karesoja, Paramita Das
1Department of Applied Physics, Aalto University, (former Helsinki University of Technology), P.O. Box 15100, FI-00076 Aalto, Espoo, Finland.
Abstract:
Biological high-performance composites inspire to create new tough, strong, and stiff structural materials. We show a brittle-to-ductile transition in a self-assembled nacre-inspired poly(vinyl alcohol)/nanoclay composite based on a hydration-induced glass-to-rubber transition in the 2D-nanoconfined poly(vinyl alcohol) layers. The findings open routes to design dissipative toughening mechanisms to combine stiffness and strength in nanocomposites.

