Abstract
The reaction between a dihydroxyphenoxycyclotriphosphazene containing allylic functions, 3, and hexamethylene-1,6-diisocyanate (HDI) leads to a new cyclotriphosphazene-substituted polyurethane 4. The structures of both classes of compounds involved in that synthesis were investigated by 31P-, 13C-, and 1H-NMR, infrared, and mass spectrometries, size-exclusion chromatography, and elemental analysis. The thermal behavior of 4 was investigated and compared to that of hexaphenoxycyclotriphosphazene, N3P3(OC6H5)6, and of a polyurethane synthesized from 1,3-bis(hydroxy)benzene and HDI. The free-radical-promoted grafting of 4 onto the polyethylene surface is described. The resultant surface was studied by ATR–IR, XPS, and contact-angle techniques. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 1925–1934, 2003
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