A thermodynamic analysis of gas sorption-desorption hysteresis in glassy polymers

1993 ◽  
Vol 26 (19) ◽  
pp. 5209-5212 ◽  
Author(s):  
R. M. Conforti ◽  
T. A. Barbari
Keyword(s):  
Thermodynamic Analysis ◽  
Glassy Polymers ◽  
Gas Sorption ◽  
Desorption Hysteresis

Energetics of gas sorption in glassy polymers

Polymer ◽  
1979 ◽  
Vol 20 (8) ◽  
pp. 956-960 ◽  
Author(s):  
W.J Koros ◽  
D.R Paul ◽  
G.S Huvard
Keyword(s):  
Glassy Polymers ◽  
Gas Sorption

Multicomponent gas sorption in glassy polymers

2007 ◽  
Vol 72 (1) ◽  
pp. 141-149 ◽  
Author(s):  
W. J. Koros ◽  
E. S. Sanders
Keyword(s):  
Glassy Polymers ◽  
Gas Sorption ◽  
Multicomponent Gas

A new approach toward modeling of mixed‐gas sorption in glassy polymers based on metaheuristic algorithms

2022 ◽  
Author(s):  
Saeed Khoshhal Salestan ◽  
Ahmad Rahimpour ◽  
Reza Abedini ◽  
Mohammad Amin Soleimanzade ◽  
Mohtada Sadrzadeh
Keyword(s):  
Glassy Polymers ◽  
Metaheuristic Algorithms ◽  
Gas Sorption ◽  
Mixed Gas ◽  
New Approach

Knowledge-based Approach to Gas Sorption in Glassy Polymers by Combining Experimental and Molecular Simulation Techniques

2008 ◽  
Vol 1130 ◽  
Author(s):  
Matthias Heuchel ◽  
Ole Hölck ◽  
Martin Böhning ◽  
Martin R. Siegert ◽  
Dieter Hofmann
Keyword(s):  
Molecular Dynamics ◽  
Polymer Matrix ◽  
Glassy Polymers ◽  
Gas Sorption ◽  
Reasonable Time ◽  
Knowledge Based ◽  
Simulation Techniques ◽  
Polymer Of Intrinsic Microporosity ◽  
Complex Polymers ◽  
Intrinsic Microporosity

AbstractWe present a method which allows to calculate gas sorption in complex polymers where, as slow processes, gas induced plasticization and volume dilation are important factors. Since the relaxational swelling of the polymer matrix that is observed at elevated gas concentrations takes hours or days, the swelling process is orders of magnitudes too slow to simulate the respective molecular dynamics in reasonable time and effort. To address this apparent incompatibility of experiment and simulation, we use single representative reference states from experiment and construct atomistic packing models according to these specifications. Gas sorption of CO2 and CH4 was successfully calculated on polysulfone, a 6FDA-polyimide, and a polymer of intrinsic microporosity, PIM-1, at 308 K and pressures up to 50 bar.

Simulation of experimentally observed dilation phenomena during integral gas sorption in glassy polymers

2007 ◽  
Vol 46 (1) ◽  
pp. 59-71 ◽  
Author(s):  
Ole Hölck ◽  
Matthias Heuchel ◽  
Martin Böhning ◽  
Dieter Hofmann
Keyword(s):  
Glassy Polymers ◽  
Gas Sorption

Continuous-site model for Langmuir gas sorption in glassy polymers

1992 ◽  
Vol 25 (2) ◽  
pp. 990-992 ◽  
Author(s):  
George H. Weiss ◽  
John T. Bendler ◽  
Michael F. Shlesinger
Keyword(s):  
Glassy Polymers ◽  
Gas Sorption ◽  
Site Model

Modeling gas sorption in amorphous Teflon through the non equilibrium thermodynamics for glassy polymers (NET-GP) approach

Desalination ◽  
2006 ◽  
Vol 193 (1-3) ◽  
pp. 82-89 ◽  
Author(s):  
Maria Grazia De Angelis ◽  
Ferruccio Doghieri ◽  
Giulio C. Sarti ◽  
Benny D. Freeman
Keyword(s):  
Glassy Polymers ◽  
Gas Sorption ◽  
Equilibrium Thermodynamics ◽  
Non Equilibrium
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