Glyceryl Polyphosphazenes: Synthesis, Properties, and Hydrolysis

Harry R. Allcock, Sukky Kwon

Research output: Contribution to journalArticlepeer-review

60 Scopus citations


Methylene-, isopropylidene-, and methoxymethylene-protected glyceryl units have been linked to cyclic and high polymeric phosphazenes. The structures and physical properties of these protected glyceryl-substituted phosphazenes were investigated by 31P NMR, NMR, and IR spectroscopy and thermal analysis. Hydrolytic deprotection reactions in acidic media yielded the water-soluble cyclic trimeric and high polymeric glycerylphosphazenes. Cross-linking of the protected high polymers was accomplished by 7 irradiation. The deprotected polymer cross-linked in the presence of adipoyl chloride or hexamethylene diisocyanate to yield systems that absorbed water to form hydrogels. Slow hydrolysis of poly(diglycerophosphazene) occurred in neutral aqueous media at 37 °C to yield glycerol, phosphoric acid, and ammonia.

Original languageEnglish (US)
Pages (from-to)1980-1985
Number of pages6
Issue number7
StatePublished - Jul 1988

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry


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