Method for producing phosphorus-containing polymers

Details Method for producing phosphorus-containing polymers Method for producing phosphorus-containing polymers

1976-02-27

1977-08-23

Raymond, Richard L.

Chemistry of carbon compounds

Dipeptides, e.g., aspartame, anserine, carnosine, etc.

260927R, 260931, 428276, 428277, C07F 940

Patent

active

040440761

ABSTRACT:
A phosphorus-containing polymer having the formula: ##STR1## is produced by reacting a cyclic chlorophosphite compound having the formula ##STR2## a ketone compound having the formula ##STR3## and a triorganophoshite compound having the formula P(OR.sub.4).sub.3 in the presence of an active halide having the formula R.sub.5 -X wherein R.sub.1 is ethylene or propylene, R.sub.2 and R.sub.3 are methyl or ethyl and may be the same or different, R.sub.4 is an alkyl group having 1 to 4 carbon atoms or an aralkyl group in which the alkyl substituent has 1 to 4 carbon atoms and the hydrogen atoms in said alkyl and aralkyl groups may be substituted with chlorine or bromine, R.sub.5 is an unsaturated or saturated aliphatic, alicyclic or aromatic group having 1 to 10 carbon atoms or combinations thereof and R.sub.5 may contain a carbonyl group, sulfonyl group or nitrogen, X is a halogen, and n is an integer of from 1 to 1000.

REFERENCES:
patent: 3014944 (1961-12-01), Birum
patent: 3371131 (1968-02-01), Carson
patent: 3701816 (1972-10-01), Nogami et al.

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