Effect of Free Volume on Water and Salt Transport Properties in Directly Copolymerized Disulfonated Poly(arylene ether sulfone) Random Copolymers

2011 ◽  
Vol 44 (11) ◽  
pp. 4428-4438 ◽  
Author(s):  
Wei Xie ◽  
Hao Ju ◽  
Geoffrey M. Geise ◽  
Benny D. Freeman ◽  
James I. Mardel ◽  
...  
Keyword(s):  
Transport Properties ◽  
Free Volume ◽  
Salt Transport ◽  
Random Copolymers ◽  
Arylene Ether

Advances in membrane materials: desalination membranes based on directly copolymerized disulfonated poly(arylene ether sulfone) random copolymers

2010 ◽  
Vol 61 (3) ◽  
pp. 619-624 ◽  
Author(s):  
Wei Xie ◽  
Ho-Bum Park ◽  
Joseph Cook ◽  
Chang Hyun Lee ◽  
Gwangsu Byun ◽  
...  
Keyword(s):  
Transport Properties ◽  
Water Permeability ◽  
Salt Transport ◽  
Random Copolymers ◽  
Acid Form ◽  
Salt Form ◽  
Membrane Materials ◽  
Salt Rejection ◽  
Arylene Ether ◽  
Order Of Magnitude

The water and salt transport properties of chlorine tolerant disulfonated poly(arylene ether sulfone) (BPS) copolymers have been characterized. Cast BPS membranes of both salt form and acid form with sulfonation levels from 20% to 40% were investigated. Water permeability of BPS films increases more than one order of magnitude as sulfonation level increases from 20% to 40%, while the salt permeability of the corresponding membranes increases two orders of magnitude. Moderate salt rejection (98.2%) was achieved by a BPS salt form membrane with a sulfonation level of 20%.

Influence of processing history on water and salt transport properties of disulfonated polysulfone random copolymers

Polymer ◽  
2012 ◽  
Vol 53 (7) ◽  
pp. 1581-1592 ◽  
Author(s):  
Wei Xie ◽  
Geoffrey M. Geise ◽  
Benny D. Freeman ◽  
Chang Hyun Lee ◽  
James E. McGrath
Keyword(s):  
Transport Properties ◽  
Salt Transport ◽  
Random Copolymers ◽  
Processing History

Cellulose esters for forward osmosis: Characterization of water and salt transport properties and free volume

Polymer ◽  
2012 ◽  
Vol 53 (13) ◽  
pp. 2664-2672 ◽  
Author(s):  
Sui Zhang ◽  
Renwu Zhang ◽  
Y.C. Jean ◽  
D.R. Paul ◽  
Tai-Shung Chung
Keyword(s):  
Transport Properties ◽  
Free Volume ◽  
Forward Osmosis ◽  
Salt Transport ◽  
Cellulose Esters

Fundamental salt and water transport properties in directly copolymerized disulfonated poly(arylene ether sulfone) random copolymers

Polymer ◽  
2011 ◽  
Vol 52 (9) ◽  
pp. 2032-2043 ◽  
Author(s):  
Wei Xie ◽  
Joe Cook ◽  
Ho Bum Park ◽  
Benny D. Freeman ◽  
Chang Hyun Lee ◽  
...  
Keyword(s):  
Transport Properties ◽  
Water Transport ◽  
Random Copolymers ◽  
Arylene Ether ◽  
Water Transport Properties

Relationship between the gas transport properties and the refractive index in high-free-volume fluorine-containing polyimide membranes

2011 ◽  
Vol 121 (5) ◽  
pp. 2794-2803 ◽  
Author(s):  
Shuichi Sato ◽  
Takamasa Ose ◽  
Sou Miyata ◽  
Shinji Kanehashi ◽  
Hiroto Ito ◽  
...  
Keyword(s):  
Refractive Index ◽  
Transport Properties ◽  
Free Volume ◽  
Gas Transport ◽  
Gas Transport Properties ◽  
Polyimide Membranes

Improving the barrier character of poly(caprolactone): Transport properties and free volume of immiscible blends

2019 ◽  
Vol 136 (40) ◽  
pp. 48018 ◽  
Author(s):  
Sorkunde Eceolaza ◽  
Ainara Sangroniz ◽  
Javier Río ◽  
Marian Iriarte ◽  
Agustin Etxeberria
Keyword(s):  
Transport Properties ◽  
Free Volume ◽  
Immiscible Blends ◽  
Poly Caprolactone
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