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1,014 Newest Publications about the topic dispersions

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Bulk properties of aqueous graphene oxide and reduced graphene oxide with surfactants and polymers: adsorption and stability

26-Jun-2018 | Thomas M. McCoy; Liliana de Campo; Anna V. Sokolova; Isabelle Grillo; Ekaterina I. Izgorodina; Rico F. Tabor, Physical Chemistry Chemical Physics, 2018

A diverse range of molecular surfactants and polymers have been incorporated into aqueous graphene oxide (GO) and reduced graphene oxide (rGO) dispersions in order to understand the complex relationship between surface chemistry, surface forces and interfacial thermodynamics of these materials ...

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Preparation of 2D material dispersions and their applications

20-Jun-2018 | Xingke Cai; Yuting Luo; Bilu Liu; Hui-Ming Cheng, Chemical Society Reviews, 2018

Extensive research on two-dimensional (2D) materials has triggered the renaissance of an old topic, that is, the intercalation and exfoliation of layer materials. Such top-down exfoliation produced 2D materials and their dispersions have several advantages including low cost, scalable production ...

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Energies, Vol. 11, Pages 1573: Boron Monochalcogenides; Stable and Strong Two-Dimensional Wide Band-Gap Semiconductors

15-Jun-2018 | Mortazavi, Bohayra ; Rabczuk, Timon, Energies, 2018

Energies, Vol. 11, Pages 1573: Boron Monochalcogenides; Stable and Strong Two-Dimensional Wide Band-Gap Semiconductors Energies doi: 10.3390/en11061573 Authors: Bohayra Mortazavi Timon Rabczuk In this short communication, we conducted first-principles calculations to explore the ...

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Dynamic Monte Carlo algorithm for out-of-equilibrium processes in colloidal dispersions

12-Jun-2018 | Daniel Corbett; Alejandro Cuetos; Matthew Dennison; Alessandro Patti, Physical Chemistry Chemical Physics, 2018

Colloids have a striking relevance in a wide spectrum of industrial formulations, spanning from personal care products to protective paints. Their behaviour can be easily influenced by extremely weak forces, which disturb their thermodynamic equilibrium and dramatically determine their ...

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TEMPO-oxidized cellulose nanofibrils; probing the mechanisms of gelation via Small Angle X-Ray Scattering

30-May-2018 | Julien Schmitt; Vincenzo Calabrese; Marcelo A. da Silva; Saskia Lindhoud; Viveka Alfredsson; Janet L Scott; Karen J ..., Physical Chemistry Chemical Physics, 2018

The structure of dispersions of TEMPO-oxidised cellulose nanofibrils (OCNF), at various concentrations, in water and in NaCl aqueous solutions, were probed using small angle x-ray scattering (SAXS). OCNF are modelled as rod-like particles with an elliptical cross-section of 10 nm and a length ...

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Thermodiffusion of repulsive charged nanoparticles - Interplay between single-particle and thermoelectric contributions

30-May-2018 | Rafael Cabreira Gomes; Anailde Ferreira da Silva; Mansour Kouyaté; Gilles Demouchy; Guillaume Mériguet; Re ..., Physical Chemistry Chemical Physics, 2018

Thermodiffusion of different ferrite nanoparticles (NPs), ~ 10 nm in diameter, is explored in tailor-made aqueous dispersions stabilized by electrostatic interparticle interaction. In the dispersions, electrosteric repulsion is the dominant force, which is tuned by an osmotic-stress technique, ...

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Highly deformable hydrogels constructed by pH-triggered polyacid nanoparticle disassembly in aqueous dispersions

29-May-2018 | Wenkai Wang; Dongdong Lu; Mingning Zhu; Jennifer M. Saunders; Amir H. Milani; Steven P. Armes; Brian R. Saunders, Soft Matter, 2018

Most hydrogels are prepared using small-molecule monomers but unfortunately this approach may not be feasible for certain biomaterial applications. Consequently, alternative gel construction strategies have been established, which include using covalent inter-linking of preformed gel particles, ...

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PEG-nanotube liquid crystals as templates for construction of surfactant-free gold nanorods

28-May-2018 | Naohiro Kameta; Hidenobu Shiroishi, Chemical Communication, 2018

Lyotropic liquid crystals, in which nanotubes coated with polyethylene glycol were aligned side-by-side in aqueous dispersions, acted as templates for the construction of surfactant-free gold nanorods with controllable diameters, functionalizable surfaces, and tunable optical properties.

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Ultrasonication-induced sp3 hybridization defects in Langmuir–Schaefer layers of turbostratic graphene

27-May-2018 | K. Rytel; M. Widelicka; D. Łukawski; F. Lisiecki; K. Kędzierski; D. Wróbel, Physical Chemistry Chemical Physics, 2018

Ultrasonic homogenization is the method of choice for producing and dispersing graphene. In this paper, we show that sp3 hybridization defects introduced by long high-power sonication cause a significant decrease in electrical conductivity. In order to show this, two turbostratic graphene (TG) ...

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Revisiting the colloidal fundamentals of water-dispersible polyesters: interactions and self-assembly of polymer nanoaggregates in water

27-May-2018 | Sabina Islam; David L. Inglefield; Orlin D. Velev, Soft Matter, 2018

Water-dispersible sulfopolyesters are a major class of film-forming and solution-modifying polymers, which are routinely used in applications such as inks, adhesives, coatings, and personal care products. Since these polyesters are designed to be used as waterborne dispersions, understanding ...

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