Pan, Tianqi
(2010)
Electroplastic Elastomer.
Master's Thesis, University of Pittsburgh.
(Unpublished)
Abstract
Electroplastic Elastomers Tianqi Pan, M.S University of Pittsburgh, 2010A series of composite materials comprising a polyelectrolyte hydrogel, a porous scaffold and exchangeable multivalent metal ions was prepared and studied with the goal of identifying formulations that would allow for an electrochemically stimulated change in modulus. Composites based on poly[(styrene sulfonate)-co-acrylate)] hydrogels exhibited the best combination of properties. When prepared as an interpenetrating network in a porous polyurethane scaffold and subjected to exchange with Fe3+ ions, these materials exhibit compressive moduli in the 1-3 MPa range. Comparable samples prepared with Fe2+ ions exhibit smaller moduli (0.1-0.13 MPa). Chemical oxidation of samples prepared with Fe2+ results in a concomitant increase in the modulus.
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Details
| Item Type: |
University of Pittsburgh ETD
|
| Status: |
Unpublished |
| Creators/Authors: |
|
| ETD Committee: |
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| Date: |
20 September 2010 |
| Date Type: |
Completion |
| Defense Date: |
16 June 2010 |
| Approval Date: |
20 September 2010 |
| Submission Date: |
17 June 2010 |
| Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
| Institution: |
University of Pittsburgh |
| Schools and Programs: |
Dietrich School of Arts and Sciences > Chemistry |
| Degree: |
MS - Master of Science |
| Thesis Type: |
Master's Thesis |
| Refereed: |
Yes |
| Uncontrolled Keywords: |
crosslink; Polyelectrolyte; Hydrogel; scaffold |
| Other ID: |
http://etd.library.pitt.edu/ETD/available/etd-06172010-142248/, etd-06172010-142248 |
| Date Deposited: |
10 Nov 2011 19:47 |
| Last Modified: |
15 Nov 2016 13:44 |
| URI: |
http://d-scholarship.pitt.edu/id/eprint/8135 |
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