Tracer diffusion measurement in polymer solutions near the glass transition by forced rayleigh scattering

AIChE Journal ◽  
1987 ◽  
Vol 33 (4) ◽  
pp. 573-582 ◽  
Author(s):  
W. J. Huang ◽  
T. S. Frick ◽  
M. R. Landry ◽  
J. A. Lee ◽  
T. P. Lodge ◽  
...  
Keyword(s):  
Glass Transition ◽  
Rayleigh Scattering ◽  
Polymer Solutions ◽  
Tracer Diffusion ◽  
Diffusion Measurement

Molecular Tracer Diffusion in Nondilute Polymer Solutions: Universal Master Curve and Glass Transition Effects

2015 ◽  
Vol 48 (24) ◽  
pp. 8907-8912 ◽  
Author(s):  
Apostolos Vagias ◽  
Jennifer Schultze ◽  
Mikheil Doroshenko ◽  
Kaloian Koynov ◽  
Hans-Jürgen Butt ◽  
...  
Keyword(s):  
Glass Transition ◽  
Master Curve ◽  
Polymer Solutions ◽  
Tracer Diffusion ◽  
Molecular Tracer ◽  
Transition Effects

scholarly journals Complex Tracer Diffusion Dynamics in Polymer Solutions

2013 ◽  
Vol 111 (8) ◽  
Author(s):  
Apostolos Vagias ◽  
Riccardo Raccis ◽  
Kaloian Koynov ◽  
Ulrich Jonas ◽  
Hans-Jürgen Butt ◽  
...  
Keyword(s):  
Polymer Solutions ◽  
Tracer Diffusion ◽  
Diffusion Dynamics

Tracer diffusion at the glass transition

1990 ◽  
Vol 23 (6) ◽  
pp. 1600-1610 ◽  
Author(s):  
Dietmar Ehlich ◽  
Hans Sillescu
Keyword(s):  
Glass Transition ◽  
Tracer Diffusion

scholarly journals Characterizing anomalous diffusion in crowded polymer solutions and gels over five decades in time with variable-lengthscale fluorescence correlation spectroscopy

Soft Matter ◽  
2016 ◽  
Vol 12 (18) ◽  
pp. 4190-4203 ◽  
Author(s):  
Daniel S. Banks ◽  
Charmaine Tressler ◽  
Robert D. Peters ◽  
Felix Höfling ◽  
Cécile Fradin
Keyword(s):  
Anomalous Diffusion ◽  
Fluorescence Correlation Spectroscopy ◽  
Polymer Solutions ◽  
Tracer Diffusion ◽  
Correlation Spectroscopy ◽  
Fluorescence Correlation ◽  
Wide Range

FCS with a wide range of beam waists was used to measure tracer diffusion in crowded media over five decades in time, thus providing a strong test for different models of anomalous diffusion.

Oxygen Diffusion in SrTiO3 Thin Films - An Attempt to Measure Oxygen Diffusivity at Relatively Low Temperature

2013 ◽  
Vol 566 ◽  
pp. 258-261 ◽  
Author(s):  
Daiki Ishii ◽  
Toshimasa Suzuki ◽  
Hiroshi Kishi ◽  
Isao Sakaguchi ◽  
Naoki Ohashi ◽  
...  
Keyword(s):  
Low Temperature ◽  
Oxygen Diffusion ◽  
Tracer Diffusion ◽  
Degradation Behavior ◽  
Diffusion Measurement ◽  
Exchange Method ◽  
Isotope Tracer ◽  
Oxygen Diffusivity ◽  
Lower Temperature ◽  
Very High

Oxygen diffusivity in strontium titanate films with intentional non-stoichiometry, Sr1+xTi1+yOδwith (1+x)/(1+y) = 0.71.5, was studied to reveal degradation behavior of Sr1+xTi1+yOδfilms. In order to utilize isotope tracer diffusion measurement, so-called gas/solid exchange method using18O2gas, at relatively low temperature, very thin YSZ layer deposited on top of Sr1+xTi1+yOδfilm was used as catalyst for enhanced18O[gas]/16O[solid] exchange at lower temperature. As a result, very high oxygen diffusivity at 673 K in Sr1+xTi1+yOδfilms with (1+x)/(1+y)>>1 was observed.

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