Poly(dialkylaminoaryloxyphosphazene) polymers and foams

Details Poly(dialkylaminoaryloxyphosphazene) polymers and foams Poly(dialkylaminoaryloxyphosphazene) polymers and foams

C - Chemistry, Metallurgy

08

G

402/355, 403/9,

C08G 79/04 (2006.01) C08G 79/02 (2006.01) C08L 85/02 (2006.01)

Patent

CA 1104149

Abstract of the Disclosure Poly(aryloxyphosphazene) polymers and foams thereof having di(C1-C10)alkylaminophenoxy groups are described. The polymers consist of the units which occur in a nonregular fashion and are represented by the following general formula: Image wherein R1 and R2 are the same or different and are C1-C10 linear or branched alkyl radical. Copolymeric dialkylaminoaryloxy-aryloxyphos- phazenes are disclosed represented by units of the general formula: Image , Image , and Image wherein R1 and R2 are defined above and R represents hydrogen, halogen, C1-C10linear or branched alkyl radical, or C1-C4 linear or branched alkoxy radical substituted on any sterically permissible position on the other phenoxy group. The radical NR1R2 is substituted in the meta or para position on the phenoxy radical. The polymers are elastomers, have desirable tensile strengths and may be used to form flexible or semi- rigid films, sheets, and foams. The polymers are extremely fire retardant and produce low smoke loads when heated in an open flame. They readily form salts with mineral acids that are water soluble.

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