| dc.contributor.advisor |
Paul , Donald R . |
|
| dc.contributor.committeeMember |
Freeman , Benny D . |
|
| dc.creator |
Passaniti , Linda Kimberly |
|
| dc.date.accessioned |
2010 -11 -02T16 :21 :09Z |
|
| dc.date.accessioned |
2010 -11 -02T16 :21 :14Z |
|
| dc.date.accessioned |
2011 -08 -16T15 :49 :02Z |
|
| dc.date.available |
2010 -11 -02T16 :21 :09Z |
|
| dc.date.available |
2010 -11 -02T16 :21 :14Z |
|
| dc.date.available |
2011 -08 -16T15 :49 :02Z |
|
| dc.date.created |
2010 -05 |
|
| dc.date.issued |
2010 -11 -02 |
|
| dc.date.submitted |
May 2010 |
|
| dc.identifier.uri |
http : / /hdl .handle .net /2152 /ETD -UT -2010 -05 -1413 |
|
| dc.description.abstract |
Partially disulfonated poly (arylene ether sulfone ) (BPS ) membranes have shown great promise as robust , chlorine tolerant alternatives to the current polyamide materials as reverse osmosis desalination membranes for water purification . The random copolymers are synthesized by direct polymerization of a disulfonated monomer (3 ,3’ -disulfonato -4 ,4’ -dichlorodiphenyl sulfone (SDCDPS ) ) and other monomers (4 ,4’ -dichlorodiphenyl sulfone (DCDPS ) and 4 ,4’ -biphenol (BP ) ) . The sulfonation of the materials adds necessary hydrophilic character and adjusting the percent sulfonation of the material changes the water and salt uptake of the material . Additionally , sulfonation causes the membranes to be charged , making them ion exchangers in which anions are partially excluded from the membrane , thus affecting the partitioning of salt in the membrane . The amount of sodium chloride present in the membrane after equilibration with external soaking solutions of varying concentrations of sodium chloride was measured by measuring the amount of individual ions , i .e . , the sodium cation and chloride anion , separately . One area in which this work is unique is that it sought to measure the concentrations of the ions independently of one another . The analysis of sodium and chloride has shown the concentration of sodium in the membrane to be significantly greater than that of chloride , where the uptake of chloride is the limiting factor in the uptake of sodium chloride . The trends in the concentrations as well as in the partition coefficients of the ions are consistent with Donnan Exclusion . |
|
| dc.format.mimetype |
application /pdf |
|
| dc.language.iso |
eng |
|
| dc.subject |
Donnan exclusion |
|
| dc.subject |
Ion exclusion |
|
| dc.subject |
Sulfones |
|
| dc.subject |
Water purification |
|
| dc.subject |
Reverse osmosis |
|
| dc.subject |
Ion exchange |
|
| dc.subject |
BPS |
|
| dc.title |
Salt solubility measurements in partially disulfonated poly (arylene ether sulfone ) for reverse osmosis water purification applications |
|
| dc.description.department |
Chemical Engineering |
|
| dc.type.genre |
thesis |
* |
| dc.type.material |
text |
* |
| thesis.degree.name |
Master of Science in Engineering |
|
| thesis.degree.level |
Masters |
|
| thesis.degree.discipline |
Chemical Engineering |
|
| thesis.degree.grantor |
University of Texas at Austin |
|
| thesis.degree.department |
Chemical Engineering |
|
| dc.date.updated |
2010 -11 -02T16 :21 :14Z |
|