Results 41 to 50 of about 469,431 (219)

The origin of mechanical enhancement in polymer nanoparticle composites with ultra-high nanoparticle loading [PDF]

open access: yes, 2019
Polymer nanoparticle composites (PNC) with ultra high loading of nanoparticles (> 50%) have been shown to exhibit markedly improved strength, stiffness, and toughness simultaneously compared to the neat systems of their components. Recent experimental studies on the effect of polymer fill fraction in these highly loaded PNCs reveal that even at low ...
arxiv   +1 more source

Biocatalysis in Polymer Science [PDF]

open access: yes, 2002
Biocatalysis in Polymer Science provides current information on biocatalysis, which is the use of enzymes or living organisms to carry out chemical reactions. All of the authors, including the editors, are experts and practitionsers of polymer biocatalysis. Topics covered in this book include synthetic polymers, natural polymers, oligomers, an monomers.
Richard A. Gross, Huai N. Cheng
openaire   +2 more sources

Effect of metal clusters on the swelling of gold-fluorocarbon-polymer composite films [PDF]

open access: yesApplied Physics Letters 80, 1565, 2002, 2012
We have investigated the phenomenon of swelling due to acetone diffusion in fluorocarbon polymer films doped with different gold concentrations below the percolation threshold. The presence of the gold clusters in the polymer is shown to improve the mixing between the fluorocarbon polymer and the acetone, which is not a good solvent for this kind of ...
arxiv   +1 more source

Response of Single Polymers to Localized Step Strains [PDF]

open access: yesPhys. Rev. E 79, 011803 (2009), 2008
In this paper, the response of single three-dimensional phantom and self-avoiding polymers to localized step strains are studied for two cases in the absence of hydrodynamic interactions: (i) polymers tethered at one end with the strain created at the point of tether, and (ii) free polymers with the strain created in the middle of the polymer.
arxiv   +1 more source

Enlightenment in polymer science [PDF]

open access: yesNature, 1988
Mechanisms of Photophysical Processes and Photochemical Reactions in Polymers: Theory and Applications. By Jan F. Rabek. Wiley:1987. Pp.756. £100, $204.
openaire   +2 more sources

Tough and Resilient Hydrogels Enabled by a Multifunctional Initiating and Cross-Linking Agent

open access: yesGels, 2021
Many high-strength hydrogels have been developed in recent years; however, few of them are both tough and resilient, and their intrinsic paradoxical nature makes designing a gel with both high toughness and high resilience a great challenge.
Zhenxing Cao   +6 more
doaj   +1 more source

Analysis of automotive liftgate seals using finite element analysis

open access: yesPolímeros, 2010
Seals have wide application in automotive products. They are responsible for sealing the car in several parts such as the doors, the air intake cowl seal, and air intake lights seal. Strain and stress studies are very important in order to understand the
Rafael H. T Ueda   +2 more
doaj  

PFO-BPy Solubilizers for SWNTs: Modelling of Polymers from Oligomers [PDF]

open access: yesPhys. Status Solidi B 251, 2407 (2014), 2014
Due to their exeptional physical properties, single walled carbon nanotubes (SWNTs) embedded in organic polymers (polymer-SWNT hybrid systems) are promising materials for organic photovoltaic (OPV) devices. Already at the SWNT sorting and debundling step, polymers such as the copolymer of 9,9-dioctylfluorenyl-2,7-diyl and bipyridine (PFO-BPy) are used ...
arxiv   +1 more source

Universality of Osmotic Equation of State in Star Polymer Solutions [PDF]

open access: yesarXiv, 2023
We experimentally measure the osmotic pressures of linear polymers and three-, four-, and eight-arm star polymers in a good solvent via membrane osmometry. These results reveal that the osmotic equations of state in the star polymer solutions are universally described by the same scaling function that describes linear polymer solutions.
arxiv  

Rebound suppression of a droplet impact on a supersolvophobic surface by a small amount of polymer additives [PDF]

open access: yes, 2020
A small amount of polymer dissolved in a droplet suppresses droplet rebound when it impinges on a supersolvophobic surface. This work investigates impacting dynamics of a droplet of dilute polymer solution depending on the molecular weight and the concentration of the polymer by using multi-body dissipative particle dynamics simulations.
arxiv   +1 more source

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