ISSN:
0360-6376
Keywords:
Physics
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The reactions of 1,2-dihydroxy-1,2-bis(diethoxyphosphinyl)ethane (DBE) with various diisocyanates, such as tolylene diisocyanate, methylenebis(4-phenylisocyanate), and hexamethylene-1,6-diisocyanate, were studied for the synthesis of phosphorus-containing polyurethanes. In addition, DBE and ethyleneglycol or butanediol-1,4 were copolymerized with the diisocyanates. The synthesized poyurethanes were characterized by Fourier transform-infrared (FT-IR), proton nuclear magnetic resonance spectroscopy (1H-NMR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and dynamic mechanical analysis (DMA). Their thermal properties were compared with those of the corresponding common polyurethanes. The fire resistance of the copolyurethanes was evaluated by determining their limiting oxygen index and smoke evolution.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1984.170220401
