Equilibrium Spatial Distribution of Aqueous Pullulan:  Small-Angle X-ray Scattering and Realistic Computer Modeling

1999 ◽  
Vol 32 (25) ◽  
pp. 8611-8620 ◽  
Author(s):  
Jennifer H.-Y. Liu ◽  
David A. Brant ◽  
Shinichi Kitamura ◽  
Kanji Kajiwara ◽  
Mitsuru Mimura
Keyword(s):  
Spatial Distribution ◽  
Computer Modeling ◽  
Small Angle ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Anomalous small-angle X-ray scattering study on the spatial distribution of hydrophobic molecules in polymer micelles

2016 ◽  
Vol 48 (7) ◽  
pp. 801-806 ◽  
Author(s):  
Ryosuke Nakanishi ◽  
Ginpei Machida ◽  
Masaki Kinoshita ◽  
Kazuo Sakurai ◽  
Isamu Akiba
Keyword(s):  
Spatial Distribution ◽  
Small Angle ◽  
Polymer Micelles ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Study ◽  
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.

scholarly journals Elucidation of Spatial Distribution of Hydrophobic Aromatic Compounds Encapsulated in Polymer Micelles by Anomalous Small-Angle X-ray Scattering

Polymers ◽  
2018 ◽  
Vol 10 (2) ◽  
pp. 180 ◽  
Author(s):  
Shota Sasaki ◽  
Ginpei Machida ◽  
Ryosuke Nakanishi ◽  
Masaki Kinoshita ◽  
Isamu Akiba
Keyword(s):  
Spatial Distribution ◽  
Small Angle ◽  
Aromatic Compounds ◽  
Polymer Micelles ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

A Revised O2 Reduction Model in Li-O2 Batteries as Revealed by in Situ Small Angle X-Ray Scattering

2019 ◽  
Author(s):  
Christian Prehal ◽  
Aleksej Samojlov ◽  
Manfred Nachtnebel ◽  
Manfred Kriechbaum ◽  
Heinz Amenitsch ◽  
...  
Keyword(s):  
Small Angle ◽  
Wide Angle ◽  
Reduction Mechanism ◽  
Reduction Model ◽  
X Ray ◽  
X Ray Scattering ◽  
O2 Reduction ◽  
Ray Scattering

<b>Here we use in situ small and wide angle X-ray scattering to elucidate unexpected mechanistic insights of the O2 reduction mechanism in Li-O2 batteries.<br></b>

In situ Time-Resolved Small-Angle X-ray Scattering Reveals the Formation Kinetics of Polyelectrolyte Complex Micelles

2019 ◽  
Author(s):  
Hao Wu ◽  
Jeffrey Ting ◽  
Siqi Meng ◽  
Matthew Tirrell
Keyword(s):  
Small Angle ◽  
Self Assembly ◽  
Electrostatic Interactions ◽  
Polyelectrolyte Complex ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Kinetics Of ◽  
Ray Scattering

We have directly observed the <i>in situ</i> self-assembly kinetics of polyelectrolyte complex (PEC) micelles by synchrotron time-resolved small-angle X-ray scattering, equipped with a stopped-flow device that provides millisecond temporal resolution. This work has elucidated one general kinetic pathway for the process of PEC micelle formation, which provides useful physical insights for increasing our fundamental understanding of complexation and self-assembly dynamics driven by electrostatic interactions that occur on ultrafast timescales.

Small angle X-ray scattering study of porosity variation in a styrene-divinylbenzene copolymer

1981 ◽  
Vol 46 (7) ◽  
pp. 1675-1681 ◽  
Author(s):  
Josef Baldrian ◽  
Božena N. Kolarz ◽  
Henrik Galina
Keyword(s):  
Small Angle ◽  
Structural Parameters ◽  
Two Phase ◽  
X Ray ◽  
Porosity Variation ◽  
Swelling Agent ◽  
X Ray Scattering ◽  
Styrene Divinylbenzene ◽  
Ray Scattering

Porosity variations induced by swelling agent exchange were studied in a styrene-divinylbenzene copolymer. Standard methods were used in the characterization of copolymer porosity in the dry state and the results were compared with related structural parameters derived from small angle X-ray scattering (SAXS) measurements as developed for the characterization of two-phase systems. The SAXS method was also used for porosity determination in swollen samples. The differences in the porosity of dry samples were found to be an effect of the drying process, while in the swollen state the sample swells and deswells isotropically.

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