高圧下におけるジニトリル化合物の熱固相重合 ―グルタロニトリル,アジポニトリル,ジメチルマロノニトリル―

抄録

Under extreme conditions at high pressures up to 60 kbar and high temperatures slightly below the melting points in the solid state, the polymerizations of cyano groups in dinitriles have been investigated. This paper describes the reactivity of glutaronitrile, adiponitrile and dimethylmalononitrile.
As in the case of malononitrile and succinonitrile reported in the previous paper, ghtaronitrile and adiponitrile were found to give polymers with carbon-nitrogen conjugated chain in the solid state.
On the contrary, dimethylmalononitrlle, which has no α-hydrogen, is hardly to polymerize. This fact indicates that the existence of α-hydrogen plays an important part in these reactlons. When a small amount of water was added, dimethylmalononitrile was polymerized and simultaneously, hydrolysis occurred slightly. From these facts the polymerization of cyano groups in dinitriles are consideTed to be initiated by the Thorpe type mechanism.