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Optical Sensing of Organic Contaminants through their Immobilization and Reaction Inside Perfluorosulfonic Acid Polymer Membranes

Muthukumarasamy Ayyadurai, Subasri
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1406821247

Abstract Details

2014, PhD, University of Cincinnati, Engineering and Applied Science: Chemical Engineering.
Polymers containing perfluorosulfonic acid (PSA) groups have been used as solid acid catalysts for many years. These materials have unique and extensively studied hetero-phase morphology of hydrophilic PSA domains dispersed within a hydrophobic hydrocarbon matrix. However, the correlation between the intrinsic activity of the PSA domains and changes in solid-state morphology remains uncertain. This dissertation investigates the immobilization of suitable organic molecules within the PSA hydrophilic domains from the gas and liquid phases and by means of acid catalyzed reaction that forms a colored product. This approach permits direct comparisons of immobilization site to active site to PSA group concentration and how changes in membrane morphology influence the kinetics and thermodynamics of the solid-state reaction process. The approach is also shown to produce sensing elements for the portable, real-time detection and measurement of highly toxic trimellitic anhydride (TMA) vapors.
Anastasios Angelopoulos, Ph.D. (Committee Chair)
Jonathan Bernstein, M.D. (Committee Member)
Junhang Dong, Ph.D. (Committee Member)
Stephen Thiel, Ph.D. (Committee Member)
109 p.
Chemical Engineering
Polymer Membrane; Optical Sensor; Catalysis; Nafion; Immobilization; Kinetics

Recommended Citations

Citations

  • Muthukumarasamy Ayyadurai, S. (2014). Optical Sensing of Organic Contaminants through their Immobilization and Reaction Inside Perfluorosulfonic Acid Polymer Membranes [Doctoral dissertation, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1406821247

    APA Style (7th edition)

  • Muthukumarasamy Ayyadurai, Subasri. Optical Sensing of Organic Contaminants through their Immobilization and Reaction Inside Perfluorosulfonic Acid Polymer Membranes. 2014. University of Cincinnati, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1406821247.

    MLA Style (8th edition)

  • Muthukumarasamy Ayyadurai, Subasri. "Optical Sensing of Organic Contaminants through their Immobilization and Reaction Inside Perfluorosulfonic Acid Polymer Membranes." Doctoral dissertation, University of Cincinnati, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1406821247

    Chicago Manual of Style (17th edition)

ucin1406821247
371
© 2014, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.