Nitropolyformals

Details Nitropolyformals Nitropolyformals

1982-01-29

1983-02-15

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From aldehyde or derivative thereof as reactant

528232, 528242, 528269, 568590, C08G 1204

Patent

active

043742416

ABSTRACT:
Nitropolyformals of the formula H--OCH.sub.2 C(NO.sub.2).sub.2 ZC(NO.sub.sub.2 CH.sub.2 OCH.sub.2 --OCH.sub.2 C(NO.sub.2).sub.2 ZC(NO.sub.2).sub.2 CH.sub.2 OH wherein Z is --CH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 OCH.sub.2 --, or --CH.sub.2 NHCH.sub.2 -- and wherein the average molecular weight of the nitropolyformal molecules is from about 1,000 to about 50,000. The nitropolyformals are prepared by reacting a diol of the formula HOCH.sub.2 C(NO.sub.2).sub.2 ZC(NO.sub.2).sub.2 CH.sub.2 OH, wherein Z is defined as above, with formaldehyde in the presence of concentrated sulfuric acid. These polymers are useful as energetic binders in explosives and propellants.

REFERENCES:
patent: 3288863 (1966-11-01), Hall et al.
patent: 3531534 (1970-09-01), Adolph
patent: 3705197 (1972-12-01), Kaplan et al.
patent: 3745076 (1973-07-01), Sickman et al.
patent: 3878004 (1975-04-01), Kamlet
Journ. of Organic Chemistry, vol. 27, pp. 3598, 3600-3602.

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