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Quartz Crystal Microbalance Studies of Dimethyl Methylphosphonate Sorption Into Trisilanolphenyl-Poss Films

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dc.contributor.authorKittle, Joshua D.en
dc.contributor.committeechairEsker, Alan R.en
dc.contributor.committeememberMorris, John R.en
dc.contributor.committeememberTroya, Diegoen
dc.contributor.departmentChemistryen
dc.date.accessioned2014-03-14T20:47:49Zen
dc.date.adate2006-12-04en
dc.date.available2014-03-14T20:47:49Zen
dc.date.issued2006-11-06en
dc.date.rdate2006-12-04en
dc.date.sdate2006-11-13en
dc.description.abstractDeveloping methods to detect, adsorb, and decompose chemical warfare agents (CWAs) is of critical importance to protecting military and civilian populations alike. The sorption of dimethyl methylphosphonate (DMMP), a CWA simulant, into trisilanolphenyl-POSS (TPP) films has previously been characterized with reflection absorption infrared spectroscopy, x-ray photoelectron spectroscopy, and uptake coefficient determinations [1]. In our study, the quartz crystal microbalance (QCM) is used to study the sorption phenomena of DMMP into highly ordered Langmuir-Blodgett (LB) films of TPP. In a saturated environment, DMMP sorbs into the TPP films, binding to TPP in a 1:1 molar ratio. Although previous work indicated these DMMP-saturated films were stable for several weeks, DMMP is found to slowly desorb from the TPP films at room temperature and pressure. Upon application of vacuum to the DMMP-saturated films, DMMP follows first-order desorption kinetics and readily desorbs from the film, returning the TPP film to its original state. [1] Ferguson-McPherson, M.; Low, E.; Esker, A.; Morris, J. J. Phys. Chem. B. 2005, 109, 18914.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-11132006-131244en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11132006-131244/en
dc.identifier.urihttp://hdl.handle.net/10919/35688en
dc.publisherVirginia Techen
dc.relation.haspart03_Front_Matter.pdfen
dc.relation.haspart04_Chapters.pdfen
dc.relation.haspart02_Abstract.pdfen
dc.relation.haspart01_Title.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectchemical warfare agent simulanten
dc.subjectquartz crystal microbalanceen
dc.subjecttrisilanolphenyl-POSSen
dc.subjectLangmuir-Blodgett filmen
dc.titleQuartz Crystal Microbalance Studies of Dimethyl Methylphosphonate Sorption Into Trisilanolphenyl-Poss Filmsen
dc.typeThesisen
thesis.degree.disciplineChemistryen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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