Small-Angle X-ray Scattering by Nanostructured Materials

Craievich, Aldo Felix

doi:10.1007/978-3-319-19454-7_37-1

Cited by 10 publications

(12 citation statements)

References 31 publications

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“…Finally, the gyration radius (Rg) was calculated from SAXS measurements, as shown in Figure 5. By assuming that the particles are spherical (a simplified assumption) and using the Guinier approximation, 47 the Rg were obtained from the plot of ln [I(q)] versus q 2 at q min *Rg < 1.5 and the radius of the particles (r) was derived from eq 2.…”

Section: Surface Modification Of Tio 2 Nanoparticlesmentioning

confidence: 99%

Superhydrophobic Polypropylene Surfaces Prepared with TiO₂ Nanoparticles Functionalized by Dendritic Polymers

Contreras

Figueroa

Weibel

et al. 2018

J. Polym. Sci. Part A: Polym. Chem.

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Hybrid inorganic–organic nanomaterials have received increasing interest due to the possibility of implementing different functions and characteristics within a single material. Their functionalities are a consequence of the synergy of the properties of distinct building blocks and are related to their varied natures and spatial locations. In this work, we present the development of superhydrophobic properties on polypropylene (PP) surfaces using hybrid nanomateriales from TiO2 nanoparticles (NPs) and dendronized polymers. The dendron acryl Behera's amine was successfully grafted on the TiO2 NP surfaces by Surface‐Initiated Atom Transfer Radical Polymerization (SI‐ATRP) and a core‐brush material was obtained. Finally, PP substrates were coated with NP hybrids to produce superhydrophobic surfaces with water contact angles of over 158 degrees. Controlling the organic silane concentration on the TiO2 NPs allowed the dendronized process to be driven and thereby permitted the selection of specific wettability properties on PP substrate surfaces with high water adhesion or self‐cleaning conditions. This dendronized effect with consequent steric congestion of the polymeric brushes on the NPs changed their behaviors from Wenzel to the Cassie Baxter state. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 2019–2029

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Section: Surface Modification Of Tio 2 Nanoparticlesmentioning

confidence: 99%

Superhydrophobic Polypropylene Surfaces Prepared with TiO₂ Nanoparticles Functionalized by Dendritic Polymers

Contreras

Figueroa

Weibel

et al. 2018

J. Polym. Sci. Part A: Polym. Chem.

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“…The technique known as small angle X-ray scattering (SAXS) is widely used in the study of low correlated systems, particularly those systems where the particles have sizes in the range of 1-50 nm. Typically, 0:1 ı < 2Â < 10 ı corresponds to the angular range analyzed by SAXS, depending on the particularities of each instrumental setup (Craievich 2002). …”

Section: Particles Of Uniform Densitymentioning

confidence: 99%

“…is known as the Porod's law and can be observed in several systems consisting of materials with two different electron densities (Craievich 2002). …”

Section: Polydisperse Systems and Dispersion Of Sizementioning

confidence: 99%

Computer Simulation Tools for X-ray Analysis

Morelhão

2016

Graduate Texts in Physics

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Graduate Texts in Physics publishes core learning/teaching material for graduateand advanced-level undergraduate courses on topics of current and emerging fields within physics, both pure and applied. These textbooks serve students at the MS-or PhD-level and their instructors as comprehensive sources of principles, definitions, derivations, experiments and applications (as relevant) for their mastery and teaching, respectively. International in scope and relevance, the textbooks correspond to course syllabi sufficiently to serve as required reading. Their didactic style, comprehensiveness and coverage of fundamental material also make them suitable as introductions or references for scientists entering, or requiring timely knowledge of, a research field.More information about this series at

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“…The higher the lattice coherence, the larger the number of cells and atoms, the stronger the interference, i.e., the sharper the Bragg diffraction peaks (see Figure 3b,d). The materials can be classified as gas-like, liquid-like, and solid-like [35] according to the different degree of order (extension of the lattice coherence). In case of a gas-like system without any nanoscale periodic order (e.g., nanoparticles dispersed in a buffer) SAXS data can still provide the size and shape of the nanoparticles (morphologic analysis), provided that the contrast between the nanoparticles and the solution is high enough to make them detectable.…”

mentioning

confidence: 99%

X-ray Diffraction: A Powerful Technique for the Multiple-Length-Scale Structural Analysis of Nanomaterials

et al. 2016

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During recent decades innovative nanomaterials have been extensively studied, aiming at both investigating the structure-property relationship and discovering new properties, in order to achieve relevant improvements in current state-of-the art materials. Lately, controlled growth and/or assembly of nanostructures into hierarchical and complex architectures have played a key role in engineering novel functionalized materials. Since the structural characterization of such materials is a fundamental step, here we discuss X-ray scattering/diffraction techniques to analyze inorganic nanomaterials under different conditions: dispersed in solutions, dried in powders, embedded in matrix, and deposited onto surfaces or underneath them.

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Small-Angle X-ray Scattering by Nanostructured Materials

Cited by 10 publications

References 31 publications

Superhydrophobic Polypropylene Surfaces Prepared with TiO₂ Nanoparticles Functionalized by Dendritic Polymers

Superhydrophobic Polypropylene Surfaces Prepared with TiO₂ Nanoparticles Functionalized by Dendritic Polymers

Computer Simulation Tools for X-ray Analysis

X-ray Diffraction: A Powerful Technique for the Multiple-Length-Scale Structural Analysis of Nanomaterials

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Small-Angle X-ray Scattering by Nanostructured Materials

Cited by 10 publications

References 31 publications

Superhydrophobic Polypropylene Surfaces Prepared with TiO2 Nanoparticles Functionalized by Dendritic Polymers

Superhydrophobic Polypropylene Surfaces Prepared with TiO2 Nanoparticles Functionalized by Dendritic Polymers

Computer Simulation Tools for X-ray Analysis

X-ray Diffraction: A Powerful Technique for the Multiple-Length-Scale Structural Analysis of Nanomaterials

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Product

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Superhydrophobic Polypropylene Surfaces Prepared with TiO₂ Nanoparticles Functionalized by Dendritic Polymers

Superhydrophobic Polypropylene Surfaces Prepared with TiO₂ Nanoparticles Functionalized by Dendritic Polymers