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Preparation of phosphorus-containing polymers—XVI. Synthesis of phosphorus-containing polyanhydride-imides

✍ Scribed by M. Sato; M. Yokoyama

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
237 KB
Volume
15
Category
Article
ISSN
0014-3057

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✦ Synopsis

Phosphorus-containing polyanhydride-imides were synthesized from N,N-bis(4-carboxyphthalimido)-3,3'-diphenylalkylphosphine oxide, 3,Y-[N, N'-bis(4-carboxyphthalimido)]benzophenone and their mixtures in two steps via the diacetyl derivatives of the bisimide-carboxylic acids. The resulting polymers have reduced viscosities of 0.06-0.14dl/g and are soluble in polar aprotic solvents such as DMA, DMF and DMSO, and conc. H2SO4 etc. They have good hydrolytic stability for moisture and water. Phosphorus-containing polymers have little heat-resistance and poor flame-retardance. The benefit of incorporating phosphorus in the polymers is small.

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