Modification of porous poly(vinylidene fluoride) membrane using amphiphilic polymers with different structures in phase inversion process

2008 ◽  
Vol 310 (1-2) ◽  
pp. 567-576 ◽  
Author(s):  
Yong-Hong Zhao ◽  
Yan-Ling Qian ◽  
Bao-Ku Zhu ◽  
You-Yi Xu
Keyword(s):  
Phase Inversion ◽  
Vinylidene Fluoride ◽  
Amphiphilic Polymers ◽  
Inversion Process ◽  
Poly Vinylidene Fluoride ◽  
Porous Poly ◽  
Phase Inversion Process

A more sustainable membrane preparation using triethyl phosphate as solvent

2017 ◽  
Vol 6 (3) ◽  
Author(s):  
Tiziana Marino ◽  
Serenella Blefari ◽  
Emanuele Di Nicolò ◽  
Alberto Figoli
Keyword(s):  
Phase Inversion ◽  
Vinylidene Fluoride ◽  
Membrane Distillation ◽  
Triethyl Phosphate ◽  
Inversion Process ◽  
Solution Composition ◽  
Operational Conditions ◽  
Poly Vinylidene Fluoride ◽  
Dope Solution ◽  
Phase Inversion Process

AbstractIn this work, hydrophobic poly(vinylidene fluoride) membranes for potential membrane distillation applications, with pore sizes ranging from ~ 0.05 to ~ 0.30 μm, were prepared by employing triethyl phosphate (TEP) as a substitute to the hazardous, commonly used, toxic solvents. Membrane morphologies and properties were tailored based on the main parameters, such as the casting solution composition and the operational conditions, which affect the phase inversion process. Experimental results showed that exposure time to controlled humid air and temperature, as well as additive content in the dope solution, strongly influence the membrane formation. The use of TEP as an alternative solvent may contribute to the development of sustainable separation operations.

Microporous Membranes from an Insoluble Polyimide

1995 ◽  
Vol 60 (10) ◽  
pp. 1741-1746
Author(s):  
Jan Schauer ◽  
Miroslav Marek
Keyword(s):  
Acetic Anhydride ◽  
Phase Inversion ◽  
Amic Acid ◽  
Microporous Membranes ◽  
Inversion Process ◽  
Phase Inversion Process ◽  
Ultrafiltration Process

Poly(amic acid) prepared from 3,3',4,4'-benzophenonetetracarboxylic dianhydride and bis(4-aminophenyl) ether was used for preparation of microporous membranes by the phase inversion process. Membranes coagulated in acetic anhydride were brittle but usable for ultrafiltration. Coagulation of the poly(amic acid) in water or lower alcohols and subsequent thermal cyclocondensation led to extremely brittle polyimides, which limits their use for ultrafiltration process.

A Three-Step Model for Submicron W/O Emulsion Formation in a Transitional-Phase Inversion Process

2015 ◽  
Vol 37 (8) ◽  
pp. 1186-1191 ◽  
Author(s):  
Xiaolong Wang ◽  
Yonghong Liu ◽  
Hang Dong ◽  
Qiang Sun ◽  
Yang Shen ◽  
...  
Keyword(s):  
Phase Inversion ◽  
Inversion Process ◽  
Step Model ◽  
Transitional Phase ◽  
Phase Inversion Process

scholarly journals Pore formation mechanism of membranes from phase inversion process

Desalination ◽  
1995 ◽  
Vol 103 (3) ◽  
pp. 233-247 ◽  
Author(s):  
Tai-Horng Young ◽  
Leo-Wang Chen
Keyword(s):  
Formation Mechanism ◽  
Pore Formation ◽  
Phase Inversion ◽  
Inversion Process ◽  
Phase Inversion Process
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