Inorganic-organic hybrid materials and abrasion resistant coatings based on a sol-gel approach

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dc.contributor.authorBetrabet, Chinmay Sureshen
dc.contributor.committeechairWilkes, Garth L.en
dc.contributor.committeememberDavis, Richey M.en
dc.contributor.committeememberDesu, Seshu B.en
dc.contributor.committeememberRiffle, Judy S.en
dc.contributor.committeememberWard, Thomas C.en
dc.contributor.departmentMaterials Engineering Scienceen
dc.date.accessioned2014-03-14T21:22:17Zen
dc.date.adate2005-10-26en
dc.date.available2014-03-14T21:22:17Zen
dc.date.issued1993-08-05en
dc.date.rdate2005-10-26en
dc.date.sdate2005-10-26en
dc.description.abstractNovel inorganic-organic hybrid materials made previously in the laboratory have utilized acids catalysts such as HCI, acetic acid, toluene sulfonic acid and polystyrene sulfonic acid to catalyze the sol-gel reaction. The sol-gel reaction can also be catalyzed under near neutral (i.e. 5 < pH < 7) and basic conditions. The effects of synthesizing hybrid materials under near basic and basic conditions has not been studied. Attempts to synthesize hybrid materials from polytetramethylene oxide (PTMO) end functionalized with triethoxy silyl groups and, tetraethylorthosilicate (TEOS) under basic conditions met with only partial success. The films obtained had low mechanical stability. This was attributed to the low reactivity of the triethoxy species under neutral and basic conditions. In contrast, films with good mechanical stability were obtained when the TEOS was replaced with titanium tetraisopropoxide (TIOPR). The microstructure of the TIOPRlPTMO hybrid synthesized under near neutral conditions was generally similar to the acid catalyzed PTMOffIOPR hybrids.en
dc.description.degreePh. D.en
dc.format.extentxiv, 233 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-10262005-101003en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-10262005-101003/en
dc.identifier.urihttp://hdl.handle.net/10919/40188en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V856_1993.B477.pdfen
dc.relation.isformatofOCLC# 29323385en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1993.B477en
dc.subject.lcshAbrasives -- Mathematical modelsen
dc.subject.lcshCeramic coating -- Mathematical modelsen
dc.subject.lcshCoatings -- Mathematical modelsen
dc.subject.lcshMaterials -- Mathematical modelsen
dc.titleInorganic-organic hybrid materials and abrasion resistant coatings based on a sol-gel approachen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplineMaterials Engineering Scienceen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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