On the Reaction of Aromatic Dinitriles and Formaldehyde
スポンサーリンク
概要
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1. Like aliphatic dinitriles, polyamide having benzene nucleus and -CONH- linkages was synthesized by condensation polymerization reaction of aromatic dinitriles and formaldehyde in concentrated sulfuric acid.<BR>2. The condensation polymer obtained from terephthalonitrile had the greatest intrinsic viscosity among ortho-, iso-, tere-phthalonitrile and <I>p</I>-xylylene cyanide. A product of the highest condensation polymerization degree was obtained, by adding the 1.025: 1 molar mixture of paraformaldehyde and terephthalonitrile in small portions into ten molar amounts of 95% sulfuric acid at 0°C and then stirring for ten hours at the same temperature.<BR>3. These condensation polymers were insoluble in almost all organic solvents and had no melting and softening point. They decomposed above 300°C.
- 社団法人 日本化学会の論文
著者
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Tachikawa Toshihisa
Research Laboratory of Kunoshima Chemical Industry Co., Ltd.
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Tachikawa T.
Research Laboratory of Kunoshima Chemical Industry Co., Ltd.