α,ω-ビス〔p-(-アミノプロピル)フェノキシ〕-アルカンおよび-ジアルキルエーテルと炭酸ジフェニルの重縮合

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A series of aliphatic-aromatic polyureas were prepared from α, ω-bis [p-(-aminopropyl) phenoxy] alkanes and bis [p-(-aminopropyl) phenoxy] ω, ω-dialkyl ethers upon treatment with diphenyl carbonate. The diamines such as bis [p-(-aminopropyl) phenoxy]-1, 2-ethane, -1, 3-propane, -1, 4-butane, -1, 5-pentane, and -1, 6-hexane were obtained by the reduction of the corresponding dinitriles. The desired dinitriles were synthesized from β-(p-hydroxyphenyl) propionitrile and α, ω-dihalogenoalkanes. Bis p-(-aminopropyl) phenoxyj-a, a-dimethyl ether and -β, β-diethyl ether were similarly synthesized from, β-(p-hydroxyphenyl) pro-pionitrile and ω, ω-dihalogenoalkyl ethers. The polyureas obtained under the equimolar conditions were fusible and soluble polymers. They are crystalline in all cases and have crystalline melt temperatures in the range of 179 to 269°C. When some excess of diphenyl carbonate was added -to the reaction mixture, the polymers obtained became infusible and insoluble. The reaction mechanism of diamine with diphenyl carbonate has been discussed.
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