Kinetics of Thermally Induced Phase Separation in a Crystallizable Polymer Solution

1998 ◽  
Vol 31 (8) ◽  
pp. 2565-2568 ◽  
Author(s):  
P. D. Graham ◽  
A. J. McHugh
Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 527
Author(s):  
Yasushi Mino ◽  
Naruki Fukukawa ◽  
Hideto Matsuyama

The formation of porous structures from polymer solutions at the surface in contact with various solid surfaces via a thermally-induced phase separation (TIPS) process is investigated. The pore formation process at the bulk and the surface of the poly(methyl methacrylate)/cyclohexanol solution is simulated with a model based on the phase field method. When the compatibilities between the polymer-rich phase formed by the phase separation and the solid surface are high or low, surface porosity decreases. In contrast, for the solid surface having similar compatibilities with the polymer and solvent, high surface porosity is achieved. This indicates that the compatibility between the solid surface and polymer solution is important, and that optimal compatibility results in high surface porosity. The knowledge obtained in this work is useful to design the coagulation bath component in the membrane preparation process by TIPS for achieving high surface porosity.


1994 ◽  
Vol 89 (1-2) ◽  
pp. 37-50 ◽  
Author(s):  
Hitesh C. Vadalia ◽  
Hwan K. Lee ◽  
Allan S. Myerson ◽  
Kalle Levon

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