Hydrogenated and Sulfonated Triblock Copolymer for Clean Water
Open Access
- Author:
- Thomas, Wyatt
- Area of Honors:
- Chemical Engineering
- Degree:
- Bachelor of Science
- Document Type:
- Thesis
- Thesis Supervisors:
- Hee Jeung Oh, Thesis Supervisor
Michael John Janik, Thesis Honors Advisor - Keywords:
- polystyrene-block-polybutadiene-block-polystyrene
Water Uptake
Ion Exchange Capacity
Hydrogenation
Sulfonation
crosslinking
clean water
desalination
NMR characterization
Film Casting - Abstract:
- Recent studies have explored the use of sulfonated co-block polymers for desalination applications. Use of these types of films would make the sensitivity issues of current films used commercially for desalination trivial. The objectives of this thesis were to 1) begin exploring polystyrene-block-polybutadiene-block-polystyrene (SBS) as an option for desalination applications while pursuing ways to optimize SBS via hydrogenation and sulfonation reactions and 2) compare the performance of similar sulfonated membranes via their ion exchange capacity and water uptake values. This thesis contains some of the first kinetic data for the hydrogenation of SBS and a discussion on decoupling ion exchange capacity and water uptake values by independently controlling the degree of sulfonation and degree of crosslinking in the styrene-blocks and butadiene block of SBS, respectively.
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