Showing 61 results for Author: Logan T. Kearney
Sep, 2026
Journal
Blending polymers produces brittle materials due to macrophase separation and poor interfacial adhesion, which is exemplified by mixtures of polyolefins. This presents a formidable challenge for the mechanical recycling of mixed plastic waste. Here, we demonstrate that dynamic covalent crosslinking of immiscible polyolefin blends creates macrophase separated co-continuous…
Sep, 2026
Journal
Stable and efficient X-ray scintillators are crucial for medical diagnostics, industrial, and defense applications. However, conventional scintillator technologies face a trade-off between stability, optimal performance, and sustainability. Herein, we introduce 3D-printed Cs4MnBi2Cl12 (Pero1) and Cs4Cd0.68Mn0.32Bi2Cl12 (Pero2) perovskite microcrystals embedded within a pol…
Aug, 2026
Journal
This study investigates cooling rate effects on self-reinforced polyethylene composites (PE-SRCs), focusing on macroscopic thermal and mechanical properties, and micro- to sub-micron morphologies. Unlike conventional fiber-reinforced composites (e.g., carbon and glass fiber based), cooling rate effects on SRCs remain less studied. PE-SRCs were fabricated from ultrahigh mol…
Aug, 2026
Journal
Ammonia is a carbon-free hydrogen carrier that can be easily transported, but ammonia decomposition catalysts have historically relied on ruthenium. However, less scarce nickel-based catalysts have difficulties in performing ammonia decomposition as efficiently as ruthenium-based catalysts, as nickel-based catalysts are passivated by the hydrogen produced during the reacti…
Aug, 2026
Journal
Block copolymers with strong tendency for block demixing have attracted significant attention especially for applications in microelectronics and membranes. Enabling technological advances in these areas critically depends on access to well-defined nanostructures with dimensions near or below 10 nm. Block copolymers bearing polyzwitterionic segments are a promising class o…
Jul, 2026
Journal
Designing molecules with specific target properties remains a fundamental challenge in computational chemistry. While existing approaches show promise, most rely on simplified representations like SMILES strings or 2D graphs that lack essential three-dimensional geometric information. We present EvoDiffMol, a computational framework that integrates evolutionary algorithms…
Jul, 2026
Journal
Charge transport in polymers, such as polyacrylonitrile (PAN), is crucial for electronics and energy storage. For instance, PAN can transport cations e.g., Li+, by facilitating dynamic cation-nitrile coordination in batteries. However, little is known regarding the underlying role of complex reactive polymer configurations. Herein, we develop a deep-learning potential, tra…
Apr, 2026
Journal
Polyzwitterions, composed of repeating units with equal numbers of anionic and cationic groups, have drawn considerable interest for applications ranging from antimicrobial coatings and antifouling membranes to low-friction interfaces, energy storage media, and actuators. A characteristic feature of many polyzwitterions is the anti-polyelectrolyte effect─salt-induced chain…
Feb, 2026
Journal
Ammonia is a promising carbon-free hydrogen carrier, but incomplete ammonia dehydrogenation (cracking) generates atmospheric emissions of NOx, a potent greenhouse gas. Additionally, incomplete cracking of ammonia leads to regulatory challenges in nuclear and fusion power, where tritiated ammonia (NT3) emissions are strictly controlled. Therefore, we report the use of low-t…
Feb, 2026
Journal
Although oxidation mechanisms have been exhaustively studied for graphite, similar analyses of carbon fibers are comparatively sparse. Most prior work has focused on quantifying weight loss or assessing protective surface coatings designed to slow oxidation. The use of optical spectroscopic techniques for oxidation analyses is comparatively unexplored, but such techniques…