Accession Number : ADD001063
Title : Polymers Containing a Difluoroamino Radical.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C
Personal Author(s) : Price,Raymond M
Report Date : 25 Dec 1973
Pagination or Media Count : 5
Abstract : High energy polymers containing NF2 groups are altered by the placement, by copolymerization techniques, of short side chain ester groups in the molecular chain of difluoramino polymers. The altered polymers result in great improvement in the quantity of difluoramino plasticizer that can be held by the polymeric system or binder. By way of example, the incorporation of 28 weight percent of methyl methacrylate into the crosslinked 2,3-bis(difluoramino)propyl methacrylate NFPMA polymer through copolymerization results in an increase in the amount (e.g., by a factor or about 7.6 to 1) of acidic type difluoramino plasticizer (e.g., TVOPA or OPE) that can be held by the polymeric system. The increased difluoramino content provides a higher energy propellant. The prepolymers of this invention form polyurethanes or epoxy polymers, depending on the system ingredients selected and curing agents employed.
Descriptors : *Patents, *Fluoroamines, *Fluoropolymers, Copolymerization, Solid propellants, Plastics
Subject Categories : Physical Chemistry
Solid Rocket Propellants
Distribution Statement : APPROVED FOR PUBLIC RELEASE