In situ synthesis of organic–inorganic hybrids or nanocomposites from sol–gel chemistry in molten polymers

Bounor‐Legaré, Véronique; Cassagnau, Philippe

doi:10.1016/j.progpolymsci.2014.04.003

Cited by 72 publications

(35 citation statements)

References 126 publications

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“…Among the different types of silica additives, recently mesoporous silica nanoparticles (MSNs) have received much attention due to their nanosize, high surface-to-volume ratio, ordered structure, and ease for surface and nanopore functionalization. [21][22][23] MSNs reinforced polymer composites are relatively new materials that have shown improved mechanical and thermal stabilities in polymers including polypropylene, polystyrene, polyimide, and PMMA. [24][25][26][27] No reports have examined MSNs-EVA nanocomposites, especially for applications in greenhouse coverings or PV encapsulants.…”

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confidence: 99%

Multifunctional mesoporous silica nanoparticles in poly(ethylene-co-vinyl acetate) for transparent heat retention films

Mumin

Akhter

Dresser

et al. 2015

J. Polym. Sci. Part B: Polym. Phys.

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Transparent inorganic‐polymer nanocomposite films are of tremendous current interest inemerging solar coverings including photovoltaic encapsulants and commercial greenhouse plastics, but suffer from significant radiative heat loss. This work provides a new and simple approach for controlling this heat loss by using mesoporous silica/quantum dot nanoparticles in poly(ethylene‐co‐vinyl acetate) (EVA) films. Mesoporous silica shells were grown on CdS‐ZnS quantum dot (QDs) cores using a reverse microemulsion technique, controlling the shell thickness. These mesoporous silica nanoparticles (MSNs) were then melt‐mixed with EVA pellets using a mini twin‐screw extruder and pressed into thin films of concentration variable controlled thickness. The results demonstrate that the experimental MSNs showed improved infrared and thermal wavebands retention in the EVA transparent films compared to commercial silica additives, even at lower concentrations. It was also found MSNs enhanced the quantum yield and photostability of the QDs, providing high visible light transmission and blocking of UV transmission of interest for next generation solar coatings. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2015, 53, 851–859

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confidence: 99%

Multifunctional mesoporous silica nanoparticles in poly(ethylene-co-vinyl acetate) for transparent heat retention films

Mumin

Akhter

Dresser

et al. 2015

J. Polym. Sci. Part B: Polym. Phys.

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“…2.4(A)) is a feasible wet chemical technique to fabricate substance starting from a metal alkoxide (M-O-M) or metallic inorganic compound (M-H-M) solutions, which react to produce colloidal particles (known as a sol) [33]. A solegel method is used to create "an oxide matrix through polycondensation responses of a subatomic precedent in a liquid" [35]. A solegel method is used to create "an oxide matrix through polycondensation responses of a subatomic precedent in a liquid" [35].…”

Section: Solegel Synthesismentioning

confidence: 99%

Overviews of Synthesis of Nanomaterials

Bashir

Liu

2015

Advanced Nanomaterials and Their Applications in Renewable Energy

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“…Despite the formation of interfacial monolayers of metal oxide nanoparticles, no SEN plastic films made from such nanoparticles have been reported to date. TiO2-coated plastic films have been reported previously and are usually prepared using techniques such as high-power impulse magnetron sputtering [11], sol-gel deposition [12,13] and polymer extrusion using photocatalytic powders [14]. The former two processes produce clear films but can usually only be deposited on thick (>100 μm) and therefore not very flexible plastic films either due to high local temperatures, as in magnetron sputtering, or the need for a post-annealing step, as in sol-gel deposition.…”

Section: Introductionmentioning

confidence: 99%

Production and testing of novel photocatalytic TiO2 surface-exposed nanoparticle (TiO2-SEN) thin plastic films

McNeill¹,

Wells²,

Xu³

et al. 2019

Journal of Photochemistry and Photobiology A: Chemistry

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Flexible, surface-active, polystyrene-based, optically transparent films, embedded with a coating of commercially sourced titanium dioxide nanoparticles (Evonik P25), are made by coupling the protonated TiO2 particles with an anionic phase transfer agent (tetraphenylborate), to create an ion paired species that is drawn to a water/dichloromethane (DCM) interface to form a monolayer. The latter is subsequently embedded in a thin polystyrene (PS) film, typically 2.5 m thick, by allowing the DCM to evaporate. The resulting clear TiO2 Surface-Exposed Nanoparticle (TiO2-SEN) thin plastic films are characterised using scanning electron microscopy (SEM) and found to have 25.3 ± 5.4 nm nanoparticles exposed to the air on one side and PS on the other. The photocatalytic activity of these films is demonstrated using a number of different tests including: the photooxidation of 4-chlorophenol (4-CP) and methylene blue (MB) and the photoreduction of resazurin (Rz) and MB. In most of these tests the photoactivity of the film is more than double compared against that of a commercial photocatalytic film, Activ TM .

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In situ synthesis of organic–inorganic hybrids or nanocomposites from sol–gel chemistry in molten polymers

Cited by 72 publications

References 126 publications

Multifunctional mesoporous silica nanoparticles in poly(ethylene-co-vinyl acetate) for transparent heat retention films

Multifunctional mesoporous silica nanoparticles in poly(ethylene-co-vinyl acetate) for transparent heat retention films

Overviews of Synthesis of Nanomaterials

Production and testing of novel photocatalytic TiO2 surface-exposed nanoparticle (TiO2-SEN) thin plastic films

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