Polyphosphazenes are an important class of inorganic macromolecule and have many commercial applications, e.g. fire retardants, elastomers,
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Polyphosphazenes are an important class of inorganic macromolecule and have many commercial applications, e.g. fire retardants, elastomers, fuel cell membranes, biomedical applications. The scheme opposite shows synthetic routes to three polymers.
(a) Outline how (NPCl2)n is produced on a large scale starting from PCl5 and NH4Cl.
(b) What are the identities of the polymers A–C?
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a Outline of the largescale production of NPCl2n from PCl5 and NH4Cl Formation of PCl3 PCl5 Phosphor...View the full answer
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