A new cyclolinear phosphazene polyurethane: Synthesis from a diisocyanate and a bis-spiro-substituted cyclotriphosphazene diol

Article abstract of DOI:10.1080/10426509708033691

New cyclolinear polymers from bifunctional organic molecules and cyclotriphosphazenes containing two reactive groups have been synthesized. The reaction between 2,2-bis(4-hydroxyphenoxy)-bis[spiro(2′,2″-dioxy-1′,1″- biphenylyl)]cyclotriphosphazene 3, obta