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dc.contributor.advisor Armeniades, C. D.
dc.creatorBravo, Fabio
dc.date.accessioned 2009-06-04T00:32:45Z
dc.date.available 2009-06-04T00:32:45Z
dc.date.issued 1992
dc.identifier.urihttps://hdl.handle.net/1911/13697
dc.description.abstract There is a great need to develop new polymer foam systems that combine the advantages of polyurethane foams (low cost, ease of processing, desirable physical properties) with nonflammability and thermal stability which polyurethanes lack. In this project we address this need by synthesizing novel polymer networks with a substantial content of nonflammable elements. Specifically most of the pendant hydrogens have been eliminated (or replaced with fluorine), and a substantial fraction of the carbon atoms are replaced with oxygen, phosphorus, and nitrogen. Other elements such as Ca, Mg, Al, Sb, V, and B are also incorporated in the polymer network to enhance nonflammability. The selected phosphorus compounds are in their highest oxidation state (+5) and the nitrogen is present in the form of five or six-member heterocyclic rings. Following these guidelines, several rigid, semi-rigid, and flexible, foamed-in-place foams with outstanding nonflammability and thermal stability have been developed.
dc.format.extent 149 p.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subjectPlastics technology
Chemical engineering
dc.title New polymeric compositions for nonflammable and thermally stable foams
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Chemical and Biomolecular Engineering
thesis.degree.discipline Engineering
thesis.degree.grantor Rice University
thesis.degree.level Masters
thesis.degree.name Master of Science
dc.identifier.citation Bravo, Fabio. "New polymeric compositions for nonflammable and thermally stable foams." (1992) Master’s Thesis, Rice University. https://hdl.handle.net/1911/13697.


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