Visual-CE · In Situ Visualization of Confinement-Directed Entanglement Dynamics in Hybrid Colloid–Polymer Networks

Visual-CE (In-Situ Visualization of Confinement-Directed Entanglement Dynamics in Hybrid Colloid–Polymer Networks) will establish how colloidal particles reorganize polymer entanglements under deformation and thereby toughen soft materials. Soft matter such as gels and elastomers underpins healthcare, robotics, and energy technologies, yet their fragility and poor fatigue resistance limit demanding applications. A new paradigm suggests that when long polymer chains strongly couple to colloids, stresses can redistribute across multiple length scales, unlocking dramatic gains in durability.Visual-CE combines particle engineering, in situ optical–mechanical imaging, and multiscale modelling in a tightly integrated framework. In WP1, colloidal particles with systematically varied size, surface chemistry, and roughness will be embedded into entangled polymer networks to create well-defined confinement zones. In WP2, ultrafast in situ rheo- and tensile-confocal microscopy, enabled by fluorescent “chemical twin” particles, will directly visualize how these zones reorganize entanglements under shear and extension. In WP3, image-derived descriptors will be translated into predictive models that bridge microscopic confinement dynamics with macroscopic properties such as reinforcement, toughness, and fatigue resistance.The fellowship consolidates my expertise in polymer physics and fracture mechanics with ETH Zürich’s world-leading strength in colloid science and operando imaging. It will generate new design principles for durable, adaptive soft materials while advancing my independence and positioning me for ERC-level funding.