Novel routes to metalloorganics containing aluminum from minerals.
dc.contributor.author | Narayanan, Ramasubramanian | |
dc.contributor.advisor | Laine, Richard M. | |
dc.date.accessioned | 2016-08-30T17:43:20Z | |
dc.date.available | 2016-08-30T17:43:20Z | |
dc.date.issued | 1998 | |
dc.identifier.uri | http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqm&rft_dat=xri:pqdiss:9840612 | |
dc.identifier.uri | https://hdl.handle.net/2027.42/131287 | |
dc.description.abstract | Novel pathways for synthesizing Al metalloorganics directly from widely available oxides and oxo-hydroxides of aluminum are developed. The Al metalloorganics are then used to produce low-cost precursors for ceramics and polymers containing Al. Alumatrane, an unique, air-stable, aluminum alkoxide is prepared in one step from aluminum hydroxide in quantitative yields. Subsequently, alumatrane was used to prepare and characterize all group II dialuminate ceramics (MAl$\rm\sb2O\sb4,$ M = Mg, Ca, Sr, Ba). Similarly, an air-stable alkoxide of silicon was synthesized directly from SiO$\sb2,$ and is used in conjunction with alumatrane to produce precursors for aluminosilicate ceramics (MAlSiO$\sb4,$ M = K, Li, Na). Aluminum formate is synthesized, in differing efficiencies, from different crystalline minerals of Al, by direct dissolution in formic acid. A few other aluminum carboxylates are also synthesized, either directly from minerals or from aluminum formates, thus expanding the scope of the acid dissolution of aluminum hydroxides. Aluminum allyloxypropanoate (AAP) (Al(O$\rm\sb2CCH\sb2CH\sb2OCH{=}CH\sb2)\sb2$(OH)), an aluminum carboxylate with a polymerizable group has been synthesized from aluminum formate. This, has been incorporated into methyl methacrylate (MMA) polymers to impart fire retardancy. The increase in char yields as a result of AAP incorporation, indicate improved fire retardancy. Fire retardant characteristics of alumatrane has also been investigated, in MMA polymers and in a polyurethane polymer, taking char yields as a measure of fire retardance efficiency. | |
dc.format.extent | 154 p. | |
dc.language | English | |
dc.language.iso | EN | |
dc.subject | Aluminosilicates | |
dc.subject | Aluminum Allyloxypropanoate | |
dc.subject | Ceramics | |
dc.subject | Containing | |
dc.subject | Fire Retardant | |
dc.subject | Group Ii Dialuminate | |
dc.subject | Metalloorganics | |
dc.subject | Minerals | |
dc.subject | Novel | |
dc.subject | Routes | |
dc.title | Novel routes to metalloorganics containing aluminum from minerals. | |
dc.type | Thesis | |
dc.description.thesisdegreename | PhD | en_US |
dc.description.thesisdegreediscipline | Applied Sciences | |
dc.description.thesisdegreediscipline | Materials science | |
dc.description.thesisdegreediscipline | Organic chemistry | |
dc.description.thesisdegreediscipline | Polymer chemistry | |
dc.description.thesisdegreediscipline | Pure Sciences | |
dc.description.thesisdegreegrantor | University of Michigan, Horace H. Rackham School of Graduate Studies | |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/131287/2/9840612.pdf | |
dc.owningcollname | Dissertations and Theses (Ph.D. and Master's) |
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