Search arXivSearch

arXiv · 2501.02551

Effects of Molecular Composition and Chain Length on the Interfacial and Thermodynamic Properties of Cyclic and Linear Polymer Blends

Abstract

This research paper comprehensively explores the effects of molecular weight and chain architecture on the interfacial and thermodynamic properties of cyclic and linear polymer blends. Utilizing the Kremer-Grest bead-spring model, the study meticulously investigates how these polymers behave at the polymer-wall interface, with a specific emphasis on their adsorption characteristics and thermal attributes. By showing the heat capacity and thermal stability of polymeric fluids, the research not only advances the understanding of these critical factors within polymer systems but also highlights the broader environmental implications associated with polymer degradation. The study examines the intricate interaction between molecular design parameters and functionality, revealing how variations in polymer architecture can lead to significant changes in performance and stability. Furthermore, it examines the potential for enhancing the lifecycle performance of polymers, with an eye toward the development of more sustainable materials capable of minimizing environmental impact. Through this exploration, it aims to provide valuable insights that contribute to the ongoing discourse on the optimization of polymer formulations for a greener future, setting the stage for innovations in material science aimed at sustainable applications. The insights gained from this investigation have the potential to inform future research directions and material design strategies, ultimately supporting the creation of polymers that not only perform effectively but are also environmentally friendly. By integrating a thorough understanding of these relationships, this work aspires to lay the groundwork for the evolution of polymer science, encouraging advancements that align with both technological needs and ecological stewardship.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Oluwatumininu Emmanuel Ayo-Ojo, Nkosinathi Dlamini. 2025-07-10. Effects of Molecular Composition and Chain Length on the Interfacial and Thermodynamic Properties of Cyclic and Linear Polymer Blends. https://arxiv.org/abs/2501.02551

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related papers

Deformation and organization of droplet-encapsulated soft beads

Many biological, culinary, and engineering processes lead to the co-encapsulation of several soft particles within a liquid interface. In these situations the particles are bound together by the capillary forces that deform them and influence their biological or rheological properties. Here, we introduce an experimental approach to encapsulate a controlled number of soft beads within aqueous droplets in oil. These droplet-encapsulated gels are manipulated in a deformable microfluidic device to merge them and modify the liquid fraction. In the dry limit the contact surface between the hydrogels is found to be determined by the elastocapillary number $E_c$, with the contact radius following a $E_c^{1/3}$ dependence, indicating that the deformation increases for soft or small particles. When multiple beads are co-encapsulated within a single droplet they can be arranged into linear or three-dimensional aggregates that remain at a local energy minimum.

cond-mat.soft

Flexoelectricity-driven softening of bend elasticity leads to spontaneous chiral symmetry breaking in a polar fluid

The origin of the recently observed spontaneous chiral symmetry breaking in polar fluids composed of achiral molecules is an unsolved problem, raising fundamental questions about how heliconical structures emerge in such systems. Here, we investigate the pretransitional fluctuations leading to the formation of the spontaneously chiral twist-bend ferroelectric nematic phase using dielectric spectroscopy, light scattering, and small-angle X-ray scattering. We observe simultaneous softening of the bend elastic constant and the emergence of a collective dielectric mode on approaching the transition. By developing a theoretical model, we show that these phenomena are signatures of a flexoelectricity-driven transition arising from the coupling between electric polarization and bend deformation.

cond-mat.soft

Taylor dispersion in a soft tube

Diffusion of a solute along a tube is enhanced by hydrodynamic flow, a phenomenon known as Taylor dispersion. In microfluidic applications, the compliance of the tube boundaries modifies the hydrodynamic flow and thus solutal transport. Here, we develop the theory of solutal dispersion in a soft, axisymmetric tube where the tube walls respond to the hydrodynamic pressure through a Winkler response. By deriving the modified macro-transport equation for the solutal concentration dynamics based on multiple-time-scale analysis, we explore the influence of softness on solutal transport for steady and pulsatile configurations. Our main finding is that softness enhances the effective advection velocity and dispersion coefficient, which might have practical implication in biology and microfluidic technology.

cond-mat.soft