Tailoring the micropore structure of 6FDA-based polyimide membrane for gas permselectivity studied by positron annihilation

2021 ◽  
pp. 120044
Author(s):  
Peiyu Jia ◽  
Junjie Liu ◽  
Jingjing Kong ◽  
Mingming Hu ◽  
Ning Qi ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Micropore Structure ◽  
Polyimide Membrane

Positron Annihilation in Semiconductors

1999 ◽  
Author(s):  
Reinhard Krause-Rehberg ◽  
Hartmut S. Leipner
Keyword(s):  
Positron Annihilation

Positron Annihilation Studies of Thermoplastic LCP Composites,

1995 ◽  
Author(s):  
Robert A. Naslund ◽  
Phillip L. Jones
Keyword(s):  
Positron Annihilation

Methodology and Algorithm of Multicomponent Analysis of Positron Annihilation Spectra for Nanostructured Functional Materials

2017 ◽  
Vol 9 (3) ◽  
pp. 03037-1-03037-6 ◽  
Author(s):  
H. I. Klym ◽  
◽  
A. I. Ivanusa ◽  
Yu. M. Kostiv ◽  
D. O. Chalyy ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Functional Materials ◽  
Multicomponent Analysis

Seeking the Good Fitting Procedure of PALS Polymer Spectra

2008 ◽  
Vol 607 ◽  
pp. 64-66
Author(s):  
Nicolas Laforest ◽  
Jérémie De Baerdemaeker ◽  
Corine Bas ◽  
Charles Dauwe
Keyword(s):  
Experimental Data ◽  
Low Temperature ◽  
Positron Annihilation ◽  
Physical Meaning ◽  
Lifetime Measurements ◽  
Positron Annihilation Lifetime ◽  
Fitting Procedure ◽  
Fitting Procedures ◽  
Blob Model

Positron annihilation lifetime measurements on polymethylmethacrylate (PMMA) at low temperature were performed. Different discrete fitting procedures have been used to analyze the experimental data. It shows that the extracted parameters depend strongly on the fitting procedure. The physical meaning of the results is discussed. The blob model seems to give the best annihilation parameters.

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