Models for the decrease in ultimate elongation and embrittlement of organic coatings during degradation

SG Croll - Progress in Organic Coatings, 2024 - Elsevier
Polymer organic coatings often become brittle, then crack and fail. Hypotheses are easily
found for the chemical changes that cause embrittlement but not quantitative predictions for …

Topological linking determines elasticity in limited valence networks

G Palombo, S Weir, D Michieletto… - Nature Materials, 2025 - nature.com
Understanding the relationship between the microscopic structure and topology of a material
and its macroscopic properties is a fundamental challenge across a wide range of systems …

Predicting failure locations in model end-linked polymer networks

H Zhang, RA Riggleman - Physical Review Materials, 2024 - APS
The fracture of polymer networks and gels has a significant impact on the performance of
these versatile and widely used materials, and a molecular-level understanding of the …

Influence of solvent quality on the swelling and deswelling and the shear modulus of semi-dilute solution cross-linked poly (vinyl acetate) gels

F Horkay, JF Douglas - The Journal of chemical physics, 2023 - pubs.aip.org
We systematically examine the influence of varying temperature (T) over a large range in
model poly (vinyl acetate) gels swollen in isopropyl alcohol. The theta temperature Θ, at …

Characterizing dynamic heterogeneities during nanogel degradation

ZF Mira, V Palkar, O Kuksenok - Soft Matter, 2025 - pubs.rsc.org
Understanding photodegradation of nanogels is critical for dynamic control of their
properties and functionalities. We focus on nanogels formed by end-linking of four-arm …

Local dynamics and failure of inhomogeneous polymer networks

Z Ye, H Zhang, RA Riggleman - Soft Matter, 2024 - pubs.rsc.org
Inhomogeneous crosslinked polymers are powerful platforms for materials design, because
they can be synthesized from materials that provide complimentary properties to the …

A dynamical system approach to relaxation in glass-forming liquids

JF Douglas, QL Yuan, J Zhang, H Zhang, WS Xu - Soft Matter, 2024 - pubs.rsc.org
The “classical” thermodynamic and statistical mechanical theories of Gibbs and Boltzmann
are both predicated on axiomatic assumptions whose applicability is hard to ascertain …

[HTML][HTML] Molecular dynamics studies of knotted polymers

M DelloStritto, C Micheletti, ML Klein - The Journal of Chemical …, 2024 - pubs.aip.org
Molecular dynamics calculations have been used to explore the influence of knots on the
strength of a polymer strand. In particular, the mechanism of breaking 3 1, 4 1, 5 1, and 5 2 …

Auxetic polymer networks: The role of crosslinking, density, and disorder

A Ninarello, J Ruiz-Franco, E Zaccarelli - The Journal of Chemical …, 2023 - pubs.aip.org
Low-crosslinked polymer networks have recently been found to behave auxetically when
subjected to small tensions, that is, their Poisson's ratio ν becomes negative. In addition, for …

Influence of swelling on the elasticity of polymer networks cross-linked in the melt state: Test of the localization model of rubber elasticity

JF Douglas, F Horkay - The Journal of Chemical Physics, 2024 - pubs.aip.org
The elasticity of polymer networks, formed by cross-linking high molecular mass polymers in
the melt state and then swollen by a solvent, involves contributions from both the presence …