Results 11 to 20 of about 1,450,974 (80)

Driven Transport of Dilute Polymer Solutions through Porous Media Comprising Interconnected Cavities

open access: yesColloids and Interfaces, 2021
Driven transport of dilute polymer solutions through porous media has been simulated using a recently proposed novel dissipative particle dynamics method satisfying the no-penetration and no-slip boundary conditions.
Karthik Nagarajan, Shing Bor Chen
doaj   +1 more source

2-Hydroxy-3-(1-(4-vinylbenzyl)imidazol-3-ium-3-yl)propane-1-sulfonate and 3-(4-Vinylbenzyl)dimethylammonio)-2-hydroxypropane-1-sulfonate as New Zwitterionic Monomers

open access: yesMolbank, 2022
Zwitterionic polymers emerge as very useful materials for applications in antifouling surfaces. The properties of these polymers can be tuned by variations of the chemical structure of the corresponding monomer.
Jihen Ben-Hadj-Salem   +4 more
doaj   +1 more source

Electrocatalytic Depolymerization of Self-Immolative Poly(Dithiothreitol) Derivatives

open access: yesMolecules, 2022
We report the use of electrogenerated anthraquinone radical anion (AQ•−) to trigger fast catalytic depolymerization of polymers derived from poly(dithiothreitol) (pDTT)—a self-immolative polymer (SIP) with a backbone of dithiothreitols connected with ...
Magnus Hansen-Felby   +2 more
doaj   +1 more source

Unprecedented Scissor Effect of Macromolecular Cross-linkers on the Glass Transition Temperature of Poly(N-vinylimidazole), Crystallinity Suppression of Poly(tetrahydrofuran) and Molecular Mobility by Solid State NMR in Poly(N-vinylimidazole)-l-poly(tetrahydrofuran) Conetworks [PDF]

open access: yes, 2013
Unexpected correlations have been found between structural parameters and glass transition temperatures (Tg) of poly(N-vinylimidazole) (PVIm) and crystallinity of poly(tetrahydrofuran) (PTHF) in a series of novel, unique PVIm-l-PTHF amphiphilic ...
Achilleos   +144 more
core   +1 more source

A novel profluorescent dinitroxide for imaging polypropylene degradation [PDF]

open access: yes, 2008
Free-radical processes underpin the thermo-oxidative degradation of polyolefins. Thus, to extend the lifetime of these polymers, stabilizers are generally added during processing to scavenge the free radicals formed as the polymer degrades.
Fairfull-Smith, Kathryn E.   +4 more
core   +2 more sources

Gas separation membrane [PDF]

open access: yes, 2017
A method of fabricating a gas separation membrane includes providing a coextruded multilayer film that includes a first polymer layer formed of a first polymer material and a second polymer layer formed of a second polymer material, the first polymer ...
Armstrong, Shannon   +4 more
core   +1 more source

Stealth Coating of Nanoparticles in Drug-Delivery Systems

open access: yesNanomaterials, 2020
Nanoparticles (NPs) have emerged as a powerful drug-delivery tool for cancer therapies to enhance the specificity of drug actions, while reducing the systemic side effects.
See Yee Fam   +5 more
doaj   +1 more source

Laboratory Investigation of Nanofluid-Assisted Polymer Flooding in Carbonate Reservoirs

open access: yesNanomaterials, 2022
In the petroleum industry, the remaining oil is often extracted using conventional chemical enhanced oil recovery (EOR) techniques, such as polymer flooding.
Kassymzhomart Ulasbek   +3 more
doaj   +1 more source

Phase stability and dynamics of entangled polymer-nanoparticle composites. [PDF]

open access: yes, 2015
Nanoparticle-polymer composites, or polymer-nanoparticle composites (PNCs), exhibit unusual mechanical and dynamical features when the particle size approaches the random coil dimensions of the host polymer.
Archer, Lynden A   +2 more
core   +1 more source

Statistical Thermodynamics of Polymer Quantum Systems [PDF]

open access: yes, 2011
Polymer quantum systems are mechanical models quantized similarly as loop quantum gravity. It is actually in quantizing gravity that the polymer term holds proper as the quantum geometry excitations yield a reminiscent of a polymer material.
Chacón-Acosta, Guillermo   +3 more
core   +4 more sources

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