INS11-0911
Bridging Mechanochemistry and Wave Physics: High Strain Rate Stress Wave Dissipation via Dynamic Networks and Structurally Programmed Patterning
Topic
S11. PMSE–PSK50 Anniversary Symposium: Advancing Polymer Science for a Sustainable and Intelligent Future
When and Where
Oct 1, 2026
11:10 - 11:35
Room 110
Session Chairs
Christopher SOLES
Christopher M STAFFORD
Presenter(s)
Jaejun Lee (Pusan National University)
Co-Author(s)
Abstract
The control and utilization of high-strain-rate stress waves represent a pivotal challenge at the intersection of materials science, chemistry, and extreme mechanics. This work introduces a dual-faceted approach to high-strain-rate phenomena: harnessing molecular-level dynamic chemistries for energy dissipation, and exploiting macroscopic stress wave mechanics for advanced micro-patterning.
First, we address the need for high-strain-rate stress wave dissipation in materials exposed to extreme mechanical impacts. By integrating dynamic covalent networks and metallosupramolecular systems into a polymer matrix, we achieve enhanced energy dissipation. Under high-strain-rate stress wave loading, these networks undergo rapid, reversible bond scission and rearrangement. Catalyst-accelerated disulfide exchange and coordination geometry-sensitive supramolecular networks exhibit superior wave-attenuating performance, validated by Density Functional Theory (DFT) calculations, offering a sustainable strategy for protective materials.
Second, we pivot to the spatial exploitation of high-strain-rate stress waves for non-contact, chemical-free microscale patterning. By confining laser-driven stress waves through geometric photomasks, we investigate their spatial evolution. The resulting spallation morphologies on colloidal monolayers exhibit systematic shape transmutation and rotation-like behaviors. Numerical modeling via the Angular Spectrum Method (ASM) reveals that these fields govern an interference-dominated propagation regime. This mechanism enables the programmable fabrication of complex 2D structures, encrypted alphabetic arrays, and functional QR codes.
Collectively, this work provides fundamental insights into the intricate responses between high-strain-rate stress waves and soft materials, particularly filling a critical research gap in dynamic mechanochemical transitions and wave-governed behaviors that have remained largely unexplored.
First, we address the need for high-strain-rate stress wave dissipation in materials exposed to extreme mechanical impacts. By integrating dynamic covalent networks and metallosupramolecular systems into a polymer matrix, we achieve enhanced energy dissipation. Under high-strain-rate stress wave loading, these networks undergo rapid, reversible bond scission and rearrangement. Catalyst-accelerated disulfide exchange and coordination geometry-sensitive supramolecular networks exhibit superior wave-attenuating performance, validated by Density Functional Theory (DFT) calculations, offering a sustainable strategy for protective materials.
Second, we pivot to the spatial exploitation of high-strain-rate stress waves for non-contact, chemical-free microscale patterning. By confining laser-driven stress waves through geometric photomasks, we investigate their spatial evolution. The resulting spallation morphologies on colloidal monolayers exhibit systematic shape transmutation and rotation-like behaviors. Numerical modeling via the Angular Spectrum Method (ASM) reveals that these fields govern an interference-dominated propagation regime. This mechanism enables the programmable fabrication of complex 2D structures, encrypted alphabetic arrays, and functional QR codes.
Collectively, this work provides fundamental insights into the intricate responses between high-strain-rate stress waves and soft materials, particularly filling a critical research gap in dynamic mechanochemical transitions and wave-governed behaviors that have remained largely unexplored.
