Small-angle x-ray scattering by crystalline polymer fibers 2. Investigation of the linear paracrystalline model using various materials

1990 ◽  
Vol 268 (1) ◽  
pp. 12-21 ◽  
Author(s):  
I. H. Hall ◽  
B. H. Hussain
Keyword(s):  
Small Angle ◽  
Crystalline Polymer ◽  
Polymer Fibers ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Small Angle X-Ray Scattering of Crystalline Polymer Blends

1993 ◽  
Vol 321 ◽  
Author(s):  
Peter P. Huo ◽  
Peggy Cebe ◽  
Malcolm Capel
Keyword(s):  
Small Angle ◽  
Amorphous Polymer ◽  
Crystalline Polymer ◽  
Crystal Surfaces ◽  
Binary Blends ◽  
Butylene Terephthalate ◽  
X Ray ◽  
X Ray Scattering ◽  
Wide Range ◽  
Ray Scattering

ABSTRACTBinary blends of a semicrystalline polymer, poly (butylene terephthalate), PBT, with an amorphous polymer, polyarylate, PAr, were studied for a wide range of compositions. SMall angle x-ray scattering, thermal and mechanical analyses were conducted to determine the location of the uncrystallizable PAr relative to the crystal lamellae of PBT, for blends crystallized by heating from the quenched state. Comparison of experimental and calculated long periods indicates that interlamellar PAr placement becomes less probable as the PAr composition increases. When PBT crystallizes in these blends, Most PAr is rejected from the regions near the crystal surfaces when PAr fraction exceeds about 0.40.

In situ Structural Characterization of Semi-Crystalline Polymer Latex Particles by Small-Angle X-Ray Scattering

2004 ◽  
Vol 205 (2) ◽  
pp. 165-172 ◽  
Author(s):  
Joerg Bolze ◽  
Matthias Ballauff ◽  
Thorsten Rische ◽  
Daniel Rudhardt ◽  
Jürgen Meixner
Keyword(s):  
Structural Characterization ◽  
Small Angle ◽  
Crystalline Polymer ◽  
Latex Particles ◽  
X Ray ◽  
X Ray Scattering ◽  
Polymer Latex ◽  
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.

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