scholarly journals Spherical polyelectrolyte nanogels as templates to prepare hollow silica nanocarriers: observation by small angle X-ray scattering and TEM

RSC Advances ◽  
2017 ◽  
Vol 7 (76) ◽  
pp. 47877-47885 ◽  
Author(s):  
Haoya Han ◽  
Li Li ◽  
Yuchuan Tian ◽  
Yunwei Wang ◽  
Zhishuang Ye ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Silica Nanoparticles ◽  
Small Angle ◽  
Solid Core ◽  
Silica Layer ◽  
Hollow Silica ◽  
X Ray ◽  
The Core ◽  
X Ray Scattering ◽  
Hollow Silica Nanoparticles

Hollow silica nanoparticles were prepared through generating a silica layer in spherical polyelectrolyte nanogels, which consisted of a solid core of polystyrene and a shell of crosslinked poly(acrylic acid), followed by removing the core via solvent dissolution.

scholarly journals In situ small-angle X-ray scattering studies during the formation of polymer/silica nanocomposite particles in aqueous solution

2021 ◽  
Author(s):  
A. Czajka ◽  
G. Liao ◽  
O. O. Mykhaylyk ◽  
S. P. Armes
Keyword(s):  
Aqueous Solution ◽  
Silica Nanoparticles ◽  
Small Angle ◽  
Aqueous Emulsion ◽  
Nanocomposite Particles ◽  
X Ray ◽  
X Ray Scattering ◽  
Silica Nanocomposite ◽  
Azo Initiator

SAXS is used to study the formation of polymer/silica nanocomposite particles prepared by surfactant-free aqueous emulsion polymerization of 2,2,2-trifluoroethyl methacrylate in the presence of silica nanoparticles using a azo initiator at 60 °C.

Structure and phase behavior of poly(acrylic acid)–ferric ion complex aqueous solutions

Soft Matter ◽  
2020 ◽  
Vol 16 (47) ◽  
pp. 10750-10758
Author(s):  
Yingchun Han ◽  
Xinyue Zhao ◽  
Yonggang Liu ◽  
Yunqi Li ◽  
Quan Chen
Keyword(s):  
Acrylic Acid ◽  
Aqueous Solutions ◽  
Phase Behavior ◽  
Small Angle ◽  
Ferric Ion ◽  
Ferric Ions ◽  
Ph Measurements ◽  
X Ray ◽  
X Ray Scattering ◽  
Poly Acrylic Acid

In this study, we investigate the conformational evolution and phase behavior of poly(acrylic acid) (PAA) solution upon the introduction of ferric ions through combining of small angle X-ray scattering (SAXS), turbidity, ζ-potential and pH measurements.

Optical and Geometric Properties of Free Silica Nanoparticles Studied by Small-Angle X-Ray Scattering

nano Online ◽  
2017 ◽  
Author(s):  
Burkhard Langer ◽  
Christopher Raschpichler ◽  
Mathias Gruner ◽  
Egill Antonsson ◽  
Christian Goroncy ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Small Angle ◽  
Geometric Properties ◽  
X Ray ◽  
Free Silica ◽  
X Ray Scattering ◽  
Ray Scattering

Characterization of hollow silica–polyelectrolyte composite nanoparticles by small-angle X-ray scattering

2017 ◽  
Vol 53 (5) ◽  
pp. 3210-3224 ◽  
Author(s):  
Haoya Han ◽  
Li Li ◽  
Qingsong Yang ◽  
Yuchuan Tian ◽  
Yunwei Wang ◽  
...  
Keyword(s):  
Small Angle ◽  
Composite Nanoparticles ◽  
Hollow Silica ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Study of the internal structure of polymer micelles by anomalous small-angle X-ray scattering at two edges

2013 ◽  
Vol 46 (5) ◽  
pp. 1407-1413 ◽  
Author(s):  
Megumi Sakou ◽  
Atsuro Takechi ◽  
Shin-ichi Murakami ◽  
Kazuo Sakurai ◽  
Isamu Akiba
Keyword(s):  
Spatial Distribution ◽  
Form Factor ◽  
Small Angle ◽  
Form Factors ◽  
Solid Sphere ◽  
Hydrophobic Core ◽  
X Ray ◽  
The Core ◽  
X Ray Scattering ◽  
Ray Scattering

Anomalous small-angle X-ray scattering with two marker elements was applied to the structural analysis of poly(4-vinylphenol rubidium salt)-block-poly(4-bromostyrene) (RbPVPh-b-PBrS) micelles, where Br and Rb were the markers for the hydrophobic core and the hydrated corona, respectively. By using two different markers for the hydrophobic core and the hydrated corona, the form factors of the core and corona were extracted separately from the scattering profile of the whole RbPVPh-b-PBrS micelles. The form factor of the hydrophobic core (the spatial distribution of Br) revealed that the core was regarded as a solid sphere with a smooth surface and a radius of 47 nm. Conversely, the form factor of the spatial distribution of Rb+indicated that the shell of the RbPVPh-b-PBrS micelles was 15 nm thick.

Interactions among spherical poly(acrylic acid) brushes: Observation by rheology and small angle X-ray scattering

2015 ◽  
Vol 54 (3) ◽  
pp. 405-413 ◽  
Author(s):  
Weihua Wang ◽  
Fangfang Chu ◽  
Li Li ◽  
Haoya Han ◽  
Yuchuan Tian ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Small Angle ◽  
X Ray ◽  
X Ray Scattering ◽  
Poly Acrylic Acid ◽  
Ray Scattering

Small-angle X-ray scattering of poly(acrylic acid) in solution: 1. Dioxane

Polymer ◽  
1996 ◽  
Vol 37 (5) ◽  
pp. 715-719 ◽  
Author(s):  
Timothy J. Taylor ◽  
Salvatore S. Stivala
Keyword(s):  
Acrylic Acid ◽  
Small Angle ◽  
X Ray ◽  
X Ray Scattering ◽  
Poly Acrylic Acid ◽  
Ray Scattering
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