A new nitro epoxide of 2-nitroethyl glycidyl ether was prepared
characterized and successfully polymerized with BF3·Et2O to yield a new homopolymer and a new copo-lymer with tetrahydrofuran. These prepolymers are viscous oils and have reactivehydroxyl groups which are readily vulcanized with toluene diisocynateand glycerine to produce rubbery elactomers.