Exploring the Structural Properties of Simple Aldehydes: A Monte Carlo and Small-Angle X-ray Scattering Study

2009 ◽  
Vol 113 (28) ◽  
pp. 9429-9435 ◽  
Author(s):  
Andrej Lajovic ◽  
Matija Tomšič ◽  
Gerhard Fritz-Popovski ◽  
Lukáš Vlček ◽  
Andrej Jamnik
Keyword(s):  
Monte Carlo ◽  
Structural Properties ◽  
Small Angle ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Study ◽  
Ray Scattering

scholarly journals Structural Analysis of Melt-Spun Polymer-Optical Poly(Methyl Methacrylate) Fibres by Small-Angle X-ray Scattering and Monte-Carlo Simulation

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 779
Author(s):  
Jan Kallweit ◽  
Thomas Vad ◽  
Felix Krooß ◽  
Thomas Gries ◽  
Mohmmed Houri ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Structural Properties ◽  
Small Angle ◽  
Processing Parameters ◽  
Distribution Functions ◽  
Saxs Data ◽  
X Ray ◽  
X Ray Scattering ◽  
Melt Spun ◽  
Ray Scattering

The structural properties, mainly the spatial variation of density and chain interaction, of melt-spun polymer optical fibres (POFs) are investigated by small-angle X-ray scattering (SAXS) and compared to Monte-Carlo polymer simulations. The amorphous PMMA POFs had been subjected to a rapid cooling in a water quench right after extrusion in order to obtain a radial refractive-index profile. Four fibre samples with different processing parameters are investigated and the SAXS data analysed via Guinier approach. Distance-distribution functions from the respective equatorial and meridional SAXS data are computed to extract the fibres’ nanostructures in the equatorial plane and along the fibre axis, respectively. Temperature profiles of the cooling process are simulated for different locations within the fibre and taken as input for Monte-Carlo simulations of the polymer structure. The simulation results agree with the SAXS measurements in terms of the cooling profile’s strong influence on the structural properties of the fibre: slower cooling in the centre of the fibre leads to stronger interchain interaction, but also results in a higher density and more homogenous materials with less optical scattering.

Evolution of Pore Ordering during Anodizing of Aluminum Single Crystals: In Situ Small-Angle X-ray Scattering Study

2021 ◽  
Author(s):  
Ilya V. Roslyakov ◽  
Andrei P. Chumakov ◽  
Andrei A. Eliseev ◽  
Alexey P. Leontiev ◽  
Oleg V. Konovalov ◽  
...  
Keyword(s):  
Single Crystals ◽  
Small Angle ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Study ◽  
Ray Scattering

Gelatinization of Starch in Excess Water:  Beyond the Melting of Lamellar Crystallites. A Combined Wide- and Small-Angle X-ray Scattering Study

2006 ◽  
Vol 7 (9) ◽  
pp. 2624-2630 ◽  
Author(s):  
Rudi Vermeylen ◽  
Veerle Derycke ◽  
Jan A. Delcour ◽  
Bart Goderis ◽  
Harry Reynaers ◽  
...  
Keyword(s):  
Small Angle ◽  
X Ray ◽  
X Ray Scattering ◽  
Excess Water ◽  
Scattering Study ◽  
Ray Scattering

In situ small-angle x-ray scattering study of nanostructure evolution during decomposition of arc evaporated TiAlN coatings

2009 ◽  
Vol 94 (5) ◽  
pp. 053114 ◽  
Author(s):  
M. Odén ◽  
L. Rogström ◽  
A. Knutsson ◽  
M. R. Terner ◽  
P. Hedström ◽  
...  
Keyword(s):  
Small Angle ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Study ◽  
Ray Scattering
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