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 …

Dynamics of polymer segments, polymer chains, and nanoparticles in polymer nanocomposite melts: A review

EJ Bailey, KI Winey - Progress in Polymer Science, 2020 - Elsevier
The addition of nanoparticles (NPs) to a polymer matrix, forming a polymer nanocomposite
(PNC), is known to alter the microscopic dynamic processes of both species which leads to …

Triggering Gaussian-to-Exponential Transition of Displacement Distribution in Polymer Nanocomposites via Adsorption-Induced Trapping

M Hu, H Chen, H Wang, S Burov, E Barkai, D Wang - Acs Nano, 2023 - ACS Publications
In many disordered systems, the diffusion of classical particles is described by a
displacement distribution P (x, t) that displays exponential tails instead of Gaussian statistics …

Scaling perspective on dynamics of nanoparticles in polymers: length-and time-scale dependent nanoparticle–polymer coupling

T Ge - Macromolecules, 2023 - ACS Publications
The motion of nanoparticles in a polymer matrix is dictated by the intricate coupling of the
nanoparticles and surrounding polymers. Various length-and time-scale dependent features …

Shape anisotropy enhances nanoparticle dynamics in nearly homogeneous hydrogels

KA Rose, N Gogotsi, JH Galarraga, JA Burdick… - …, 2022 - ACS Publications
Single particle tracking is used to investigate the effect of nanoparticle shape anisotropy on
dynamics. The mean squared displacements of poly (ethylene glycol)(PEG)-functionalized …

Nonuniversal Dynamics of Hyperbranched Metallo-Supramolecular Polymer Networks by the Spontaneous Formation of Nanoparticles

M Ahmadi, M Bauer, J Berg, S Seiffert - ACS nano, 2024 - ACS Publications
Various transient and permanent bonds are commonly combined in increasingly complex
hierarchical structures to achieve biomimetic functions, along with high mechanical …

Diffusion of thin nanorods in polymer melts

J Wang, TC O'Connor, GS Grest, Y Zheng… - …, 2021 - ACS Publications
The diffusion of monomerically thin nanorods in polymer melts is studied by molecular
dynamics simulations. We focus on the systems where the chains are long enough to screen …

Single-particle tracking in poly (ethylene glycol) diacrylate: probe size effect on the diffusion behaviors of nanoparticles in unentangled polymer solutions

K Foreman, KH Tran-Ba - The Journal of Physical Chemistry B, 2023 - ACS Publications
A thorough understanding of the relevant factors governing the transport of nanoparticles in
poly (ethylene glycol) diacrylate (PEGDA) is crucial for many applications utilizing this …

Vehicular and Core–Shell Nanoparticle Diffusion in Attractive Entangled Polymer Melts

K Wang, KI Winey - Macromolecules, 2024 - ACS Publications
This work studies nanoparticle (NP) diffusion in attractive polymer melts and reveals two
distinct dynamic modes: vehicular and core–shell. By diffusing alumina NPs (R NP= 6.5 nm) …

Advancements in Novel Mechano-Rheological Probes for Studying Glassy Dynamics in Nanoconfined Thin Polymer Films

M Madhusudanan, M Chowdhury - ACS Polymers Au, 2024 - ACS Publications
The nanoconfinement effects of glassy polymer thin films on their thermal and mechanical
properties have been investigated thoroughly, especially with an emphasis on its altered …