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Phosphorus containing polymers. Part 5. Polyazoxyphosphonate

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Abstract

A new polyazoxyphosphonate was synthesized by reaction of 4-4′-dihydroxyazoxybenzene and dichlorophenyl phospine oxide by interfacial polycondensation using a phase transfer catalyst. The polymer was characterized and the results obtained by various analytical techniques indicate that it is mostly amorphous, low molecular weight and soluble in organic solvents such as DMF, DMAC, NMP, etc. The high char residue (∼40%) and limiting oxygen index indicate flame retardancy of the polymer which is due to phosphorus. Thermal stability of this polymer is moderate. TheT g appears to be at 152°C.

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Author notes

  1. S. Banerjee

    Present address: Defence Research & Development Establishment, 474002, Gwalior

Authors and Affiliations

  1. Chemistry Department, Indian Institute of Technology, 721 302, Kharagpur, India

    S. Banerjee & S. K. Palit

  2. Materials Science Centre, Indian Institute of Technology, Kharagpur, India

    S. Maiti

Authors
  1. S. Banerjee
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  2. S. K. Palit
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  3. S. Maiti
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Banerjee, S., Palit, S.K. & Maiti, S. Phosphorus containing polymers. Part 5. Polyazoxyphosphonate. Colloid Polym Sci 272, 1203–1207 (1994). https://doi.org/10.1007/BF00657771

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  • DOI: https://doi.org/10.1007/BF00657771

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