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Ionic microgel particles are intriguing systems in which the properties of thermo-responsive polymeric colloids are enriched by the presence of charged groups. In order to rationalize their properties and predict the behaviour of microgel…

软凝聚态物质 · 物理学 2021-01-28 G. Del Monte , F. Camerin , A. Ninarello , N. Gnan , L. Rovigatti , E. Zaccarelli

We show that non-entangled polymers display an elastic-like behaviour at a macroscopic scale (probed at some 0.100 mm thickness) up to at least hundred degrees above the glass transition temperature. This observation, found under…

软凝聚态物质 · 物理学 2016-09-12 H Mendil , P Baroni , Laurence Noirez

We examine the effects of confinement on the dynamics of premelted films driven by thermomolecular pressure gradients. Our approach is to modify a well-studied setting in which the thermomolecular pressure gradient is driven by a…

流体动力学 · 物理学 2017-11-22 Satyajit Pramanik , John S. Wettlaufer

The combination of the catechol-containing co-monomer dopamine methacrylamide (DMA) with stimuli-responsive microgels such as poly(N-isopropylacrylamide) (PNIPAM) bears a huge potential in research and for applications due to the versatile…

软凝聚态物质 · 物理学 2023-09-29 Sandra Forg , Xuhong Guo , Regine von Klitzing

The interparticle interactions in a magnetic nanocomposite play a dominant role in controlling the phase transitions superparamagnetic to superspinglass to superferromagnetic. These interactions can be tuned by controlling the size and…

材料科学 · 物理学 2016-07-27 V. Thiruvengadam , Satish Vitta

Half-space directed polymers in random environments are models of interface growth in the presence of an attractive hard wall. They arise naturally in the study of wetting and entropic repulsion phenomena. In 1985, Kardar predicted a…

概率论 · 数学 2024-10-22 Victor Ginsburg

We report a numerical study of equilibrium phase-diagrams and interfacial properties of bulk and confined colloid-polymer mixtures using grand canonical Monte Carlo simulations. Colloidal particles are treated as hard spheres, while the…

软凝聚态物质 · 物理学 2009-11-13 Andrea Fortini , Peter G. Bolhuis , Marjolein Dijkstra

Thermoresponsive polymer architectures have become integral building blocks of 'smart' functional materials in modern applications. For a large range of developments, e.g., for drug delivery or nanocatalytic carrier systems, the selective…

软凝聚态物质 · 物理学 2017-04-05 Matej Kanduc , Richard Chudoba , Karol Palczynski , Won Kyu Kim , Rafael Roa , Joachim Dzubiella

As the interface between human and machine becomes blurred, hydrogel incorporated electronics and devices have emerged to be a new class of flexible/stretchable electronic and ionic devices due to their extraordinary properties, such as…

软凝聚态物质 · 物理学 2017-05-04 Ni Tang , Zhan Peng , Rulei Guo , Meng An , Xiaobo Li , Nuo Yang , Jianfeng Zang

Interpenetrated polymer network microgels, composed of crosslinked networks of poly(N-isopropylacrylamide) and polyacrylic acid (PAAc), have been investigated through rheological measurements at four different amounts of polyacrylic acid.…

The formation of (bio)molecular condensates via liquid-liquid phase separation in cells has received increasing attention, as these coacervates play important functional and regulatory roles within biological systems. However, the majority…

软凝聚态物质 · 物理学 2022-11-24 Arash Nikoubashman , Miho Yanagisawa

In detailed microcanonical analyses of densities of states obtained by extensive multicanonical Monte Carlo computer simulations, we investigate the caloric properties of conformational transitions adsorbing polymers experience near…

统计力学 · 物理学 2019-03-27 Monika Möddel , Wolfhard Janke , Michael Bachmann

The diffusion of small molecular penetrants through polymeric materials represents an important fundamental problem, relevant to the design of materials for applications such as coatings and membranes. Polymer networks hold promise in these…

软凝聚态物质 · 物理学 2023-07-07 Tsai-Wei Lin , Baicheng Mei , Kenneth S. Schweizer , Charles E. Sing

Thermal welding of polymer-polymer interfaces is important for integrating polymeric elements into devices. When two different polymers are joined, the strength of the weld depends critically on the degree of immiscibility. We perform…

软凝聚态物质 · 物理学 2013-10-16 Ting Ge , Gary S. Grest , Mark O. Robbins

The advances in new technologies have prompted the need for functional systems smaller than the gyration radius of polymer chains. Thus, understanding how nanoconfinement affects polymer properties has been the focus of a lot of research…

软凝聚态物质 · 物理学 2010-07-27 Fabrice Cousin , Jérémie Gummel , Daniel Clemens , Isabelle Grillo , François Boué

During the melting transition of dimyristoyl phosphatidylglycerol (DMPG), the order of the lipid chains and the three-dimensional, vesicular structural arrangement change simultaneously. These changes result in peculiar heat capacity…

生物物理 · 物理学 2025-09-29 Thomas Heimburg , Holger Ebel , Peter Grabitz , Julia Preu , Yue Wang

Motile liquid crystal (LC) colloids show peculiar behavior due to the high sensitivity to external stimuli driven by the LC elastic and surface effects. However, few studies focus on harnessing the LC phase transitions to propel colloidal…

Nanocomposite films containing a high volume fraction (> 50vol%) of nanoparticles (NPs) in a polymer matrix are promising for their functionality and use as structural coatings, and also provide a unique platform to understand polymer…

材料科学 · 物理学 2020-09-11 Neha Manohar , Kathleen J. Stebe , Daeyeon Lee

We investigate how controlled foaming alters the mechanical dissipation of liquid crystalline elastomers (LCEs). Using thermal expandable microspheres, we generate homogeneous foams with precisely tuned bubble volume fractions up to 13% and…

软凝聚态物质 · 物理学 2026-02-23 Oliver Dai , Andrew Terentjev , Eugene M. Terentjev

Polyamide 6,6 (PA66) is a key engineering polymer, whose unique mechanical properties arise from strong interchain hydrogen bonding. However, its hygroscopic nature makes it highly sensitive to water uptake, which markedly alters its…

材料科学 · 物理学 2026-03-17 Karim Gadelrab , Armin Kech , Camilo Cruz