Synthesis of polyphosphazenes with controlled molecular weight a

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phosphorus-containing reactant

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528167, 528168, 528169, 528223, 528224, 528225, 528228, 528287, 525538, C08G 7300, C08G 7900

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active

056986645

ABSTRACT:
A process for the preparation of polyphosphazenes is provided that includes the cationic solution polymerization reaction of a phosphoranimine, using a main group or transition metal halide, or other appropriate halide salt, including a linear phosphazene salt of any chain length, or a preformed nonphosphazene polymer containing a main or transition metal chloride, as an initiator.

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