Abstract
Three methods leading to high molecular weight poly(alkylene phosphates) are described: ring-opening polymerization of cyclic monomers, polycondensation, and polyaddition of acids of phosphorus to diepoxides,. Three groups of cyclic compounds can be used for the ring-opening polymerization: cyclic phosphates, cyclic hydrogen phosphonates (phosphites), and cyclic phosphoramidites. Polymers obtained from these compounds can further be converted into the corresponding polyelectrolytes (polyalkylene phosphates). The polycondensation of diols with dialkyl hydrogen phosphonates (phosphites) or N,N,N′,N′-tetraalkyldiamides of phosphorous acid, yields the corresponding high molecular weight (Mn~3–4·104) poly(phosphites), were also converted into the acidic form.
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