Molecular characterization of polymer networks

SPO Danielsen, HK Beech, S Wang… - Chemical …, 2021 - ACS Publications
Polymer networks are complex systems consisting of molecular components. Whereas the
properties of the individual components are typically well understood by most chemists …

Covalent mechanochemistry and contemporary polymer network chemistry: a marriage in the making

EM Lloyd, JR Vakil, Y Yao, NR Sottos… - Journal of the American …, 2023 - ACS Publications
Over the past 20 years, the field of polymer mechanochemistry has amassed a toolbox of
mechanophores that translate mechanical energy into a variety of functional responses …

Azobenzene as a photoswitchable mechanophore

Y Li, B Xue, J Yang, J Jiang, J Liu, Y Zhou, J Zhang… - Nature Chemistry, 2024 - nature.com
Azobenzene has been widely explored as a photoresponsive element in materials science.
Although some studies have investigated the force-induced isomerization of azobenzene …

Facile mechanochemical cycloreversion of polymer cross-linkers enhances tear resistance

S Wang, Y Hu, TB Kouznetsova, L Sapir, D Chen… - Science, 2023 - science.org
The mechanical properties of covalent polymer networks often arise from the permanent end-
linking or cross-linking of polymer strands, and molecular linkers that break more easily …

Nonlocal intrinsic fracture energy of polymerlike networks

B Deng, S Wang, C Hartquist, X Zhao - Physical Review Letters, 2023 - APS
Connecting polymer network fracture to molecular-level chain scission remains a quandary.
While the Lake-Thomas model predicts the intrinsic fracture energy of a polymer network is …

In situ and real-time visualization of mechanochemical damage in double-network hydrogels by prefluorescent probe via oxygen-relayed radical trapping

Y Zheng, J Jiang, M Jin, D Miura, FX Lu… - Journal of the …, 2023 - ACS Publications
Visualization of mechanochemical damages, especially for those in the molecular-scale (eg,
bond scission in polymeric materials), is of great industrial and academic significance …

Degradable hydrogels: Design mechanisms and versatile applications

B Hosseinzadeh, M Ahmadi - Materials Today Sustainability, 2023 - Elsevier
Recent environmental issues raised by the durability of polymers call for designing
degradable products. Hydrogels with widespread applications in superabsorbent and …

Naphthopyran molecular switches and their emergent mechanochemical reactivity

ME McFadden, RW Barber, AC Overholts… - Chemical Science, 2023 - pubs.rsc.org
Naphthopyran molecular switches undergo a ring-opening reaction upon external
stimulation to generate intensely colored merocyanine dyes. Their unique modularity and …

Coumarin Dimer Is an Effective Photomechanochemical AND Gate for Small-Molecule Release

X He, Y Tian, RT O'Neill, Y Xu, Y Lin… - Journal of the …, 2023 - ACS Publications
Stimulus-responsive gating of chemical reactions is of considerable practical and
conceptual interest. For example, photocleavable protective groups and gating …

A mortise‐and‐tenon joint inspired mechanically interlocked network

D Zhao, Z Zhang, J Zhao, K Liu, Y Liu… - Angewandte Chemie …, 2021 - Wiley Online Library
Mortise‐and‐tenon joints have been widely used for thousands of years in wooden
architectures in virtue of their artistic and functional performance. However, imitation of …