Phosphonitrilic chloride polymers

Details Phosphonitrilic chloride polymers Phosphonitrilic chloride polymers

1981-10-26

1983-02-22

Vertiz, O. R.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Halogen containing

C01B 2510

Patent

active

043748155

ABSTRACT:
Linear phosphonitrilic chloride polymers are produced from linear phosphonitrilic chloride oligomers by means of a two-step process. In the first step a mixture of linear phosphonitrilic chloride oligomer having an average degree of polymerization of at least 4 is heated with an excess of ammonia or ammonium chloride. Cyclic phosphonitrilic chloride oligomer formed during the course of the first step is removed from the reaction mixture. After the removal of the cyclic oligomer the reaction mixture is subjected to the second step which involves heating the mixture in an inert liquid solvent (optionally in the presence of ammonia or ammonium chloride) whereby the molecular weight of the linear phosphonitrilic chloride polymer is increased.

REFERENCES:
patent: 3443913 (1969-05-01), Bieniek et al.
patent: 3545942 (1970-12-01), Rice et al.
patent: 4005171 (1977-01-01), Reynard et al.
patent: 4065546 (1977-12-01), Kao
Lund et al., J. Chem. Soc. (1960), 2542-2547.
Moran, J. Inorg. Nucl. Chem. 30, 1405-1413, (1968).
G. Allen et al., Polymer 11, 31-43, (1970).
Maselli et al., Phosphonitrilic Laminating Resins, Air Force Materials Laboratory, Technical Report AFML-65-314, Wright-Patterson Air Force Base, Ohio (Jun., 1965).

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