Miscible blends of polyphosphazenes and acidic functional polymers

Claim 1

A miscible blend comprising a) an etheric polyphosphazene comprising recurring units represented by the structural formula: ##STR5## wherein R 1 and R 2 each independently represents the formula --(R 3 --O) n --R 4 where n is 0 to 50 and n is 1 or more in at least half of the total substituents, R 3 is randomly alkyl having from 2 to 4 carbon atoms between oxygen atoms, R 4 is alkyl, alkylaryl, alkenyl, haloalkyl, aryl, substituted aromatic, aminoalkyl or thioalkyl, W and X each independently represents ##STR6## R 6 , R 7 and R 8 each independently represents H, alkyl, alkenyl, alkynyl, haloalkyl, haloalkenyl, haloalkynyl, phenyl, substituted aromatic, aminoalkyl or thioalkyl, and (b) a polymer made from a monomer or combination of monomers selected from the group consisting of acrylic acid, methacrylic acid, maleic acid, citriconic acid, 1-propene-1,2,3-tricarboxylic acid, a-chloroacrylic acid, fumaric acid, chlorofumaric acid, itaconic acid, vinylbenzoic acid, phenolic polymers (e.g., phenol formaldehyde resins), vinylphenol, N-(hydroxyphenyl)acrylamide, N-(hydroxyphenyl)methacryla-mide, hydroxyphenyl acrylate, hydroxyphenyl methacrylate, 3-sulfopropylmethacrylate, 2-acrylamido-2-methylpropane sulfonic acid, vinyl alcohol, vinyl chloride, 2-ethenylbenzenesulfonic acid, 4-ethenylbenzenesulfonic acid, 2-isopropenylbenzenesulfonic acid, 4-isopropenylbenzenesulfonic acid, α,α-bis(trifluoromethyl)-4-ethenylbenzenemethanol, and α,α-bis(trifluoromethyl)-4-isopropenylbenzenemethanol.