Some Tertiary Amides of Adipic, Azelaic and Sebacic Acids

Abstract

In the spectrogram made on the third day, the lines observed for the fresh solution had disappeared and three new lines slightly above 1000 cm.-1 had appeared. In addition, the solution which originally had been odorless had acquired the odor of ammonia. Observance of NH»"1" lines was impossible because of the strong continuous background in that region. DiscussionGoubeau4 found a weak line at 857, a very weak, questionable line at 970 and a line of medium intensity at 2192 cm.-1 in the Raman spectrum of solid potassium cyanate. In aqueous solution, he found 852, very weak, and 2185, weak. Pal and Sen Gupta5 also reported frequencies at 838 and 2183, and in addition listed frequencies at 1229 and 1314, not found by Goubeau. These two frequencies were found also in the present investigation.As Williams points out, these lines cannot be attributed to vibrations of the linear 0-C=Ngroup. The fact that Goubeau found lines at 1204 (weak) and 1307 (strong) for cyanic acid suggests the possibility that there may be some of this acid in the potassium cyanate solution.Another possibility is that mercury cyanate or silver cyanate may have been present as an impurity. Goubeau found lines at 1232 (weak) and 1302 (medium) for the former and at 1233 (weak) and 1297 (medium) for the latter. He attributed these frequencies to the doublet vi, 2 vt (analogous to the resonance doublet in carbon dioxide) of the linear 0=C=Ngroup.Aqueous solutions of potassium carbonate and potassium bicarbonate have Raman frequencies at 1069 and 1035 cm.-1, respectively.6 Measurements of the Raman spectra of aqueous solutions of ammonium carbonate and ammonium bicar-

Extrusion Plasticity of a Butadiene-Acrylonitrile Rubber

“…-->- ¿V./V-Dibutylacetamide (1) Ar-Butyl-A7-phenylacetamide (1) A7, JV-Di(l-methylisopentyl) aceta mide iV,¿V-Dibutylcaproamide JV-Methylcapramide (9) jV-Methyl-N-isopropylcapramide Ar,A7-Dibutylcapramide A7,A7-Diisopropylpelargonamide A7, iV-Dibutylpelargonamide N.jV-Diisopropyllauramide Af.jV-Dibutyllauramide A7, N-Dibutylstearamide N.jV-Di-n-octylstearamide Ar,Ar,Ar,,Ar/-Tetrabutyloxamide iV-Methylsuccinimide (1) iV.iV'-Dimethylsuccmamide (1) N-Butylsuccinimide (1) iV.JV'-Dibutylsuccinamide JV-n-Octylsuccinimide N.Ñ'-Di-n-octylsuccinamide iV^^'^'-Tetrabutylsuccinamide A7, A7, A7', N'-Tetrabutyladipamide MiV^'.jV'-Tetraethylazelamide (11) ¿V,iV,iV,)iV''-Tetrabutylazelamide TV.iV'-Dimethylsebacamide (3) Dimethyl-A7, N'-diisopropylsebacamide A7-Phenylsuccinimide (1) Ar-(o-Nitrophenyl) succinimide (1) A"-(w-Nitrophenyí) succinimide (1) A7-(p-Nitrophenyl)succinimide (i) A7-fo-Chlorophenyl)succinimide ( 16)d AT-(m-Chlorophenyl)succinimide (14,16) N-(p-Ghlorophenyl)succinimide (id) A7-(2,4-Dichlorophenyl) succinimide A7-Butylphthalimide (1) A7-n-Octylphthalimide (1) Ar-(o-Chlorophenyl)phthaIimide (17) A7-(m-ChIorophenyl)phthalimide (17) iV-(p-Chlorophenyl)phthalimide (Í) I; cured 30 minutes at 310°P.…”

“…From this figure it appears that 30 parts of tricresyl phosphate are roughly equivalent to 10 parts of butyl V,Ar-dibutylcarbamate. Likewise, 30 parts of dibutyl phthalate approximate 11 parts of the carbamate, and 30 parts of dicapryl phthalate approximate 13 parts of the carbamate.…”