Synthesis and characterization of phosphorus-containing segmented polyurethanes
- Polytechnic Institute and State Univ., Blacksburg, VA (United States); and others
Segmented polyurethanes are widely used as high performance materials and their properties can be tailored by variation of their components. However, applications of polyurethanes are somewhat limited by their high flammability. Phosphorus containing polymers have been known to exhibit the primary advantage of flame retardancy for many years. Some of the systems are reported on poly(arylene ether)s, polyimide, polyamide and epoxy, etc. in our laboratory, but detailed studies on polyurethanes had not been initiated. In this study, a series of new phosphorus-containing polyurethanes were synthesized based upon poly(tetramethylene glycol) (PTMG) soft segments and hard segments of 4,4{prime}-diphenyl methane diisocyanate which were chain extended with bis(3-aminophenyl)methyl phosphine oxide (DAMPO) and/or butane diol(BD). The resulting materials were well characterized with respect to important polymer parameters. Each as molecular weight, chemical composition, transition behavior and basic mechanical properties. The results suggest that it is possible to achieve an improved char yield while maintaining reasonable mechanical properties.
- OSTI ID:
- 370865
- Report Number(s):
- CONF-960376-; TRN: 96:003805-0927
- Resource Relation:
- Conference: Spring national meeting of the American Chemical Society (ACS), New Orleans, LA (United States), 24-28 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of 211th ACS national meeting; PB: 2284 p.
- Country of Publication:
- United States
- Language:
- English
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