Structure-property behavior of sol-gel derived hybrid materials

Structure-property studies were carried out on a number of different hybrid sol·gel materials. Multifunctional silicon ethoxides were prepared and studied by solid state ²⁹Si NMR and Raman spectroscopy to determine the type of silicate structures formed and the degree of conversion attained by the sol-gel process under previously established reaction conditions. New procedures were developed to incorporate titaniumisopropoxide as well as Al, Zr and Zn acetylacetonates into functlonalized polyltetramethylene oxide) modified sol-gel systems. The physical properties of titanium containing poIy(tetramethyIene oxide) modified sol-gel materials were studied in detail and correlated to morphological and structural information gained from dynamic mechanical analysis, small angle x-ray scattering and scanning electron microscopy. The incorporation of titanium was found to increase the measured Young’s modulus and stress at break relative to comparable materials based solely on TEOS.

Name thesis:degree_name

Ph. D.

Level thesis:degree_level

doctoral

Discipline thesis:degree_discipline

Materials Engineering Science

Department dc:contributor.department

Materials Engineering Science

Grantor dc:publisher

Virginia Polytechnic Institute and State University

Year dc:date.issued

1988

Author dc:creator

• Glaser, Raymond Hans

Chair dc:contributor.committeechair

• Wilkes, Garth L.

Committee members dc:contributor.committeemember

• Davis, Mark E.
• McGrath, James E.
• Taylor, Larry T.
• Zallen, Richard H.

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language.iso

en_US

Handle dc:identifier.uri

http://hdl.handle.net/10919/54327

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/54327