末端カルボキシル化及び末端酸クロリド化ポリオキシエチレンとジアミンの縮合重合

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  • Polycondensation of carboxyl-terminated and chlorocarbonyl-terminated poly(oxyethylene)s with diamines.
  • マッタン カルボキシルカ オヨビ マッタンサン クロリドカ ポリオキシエチレン

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Carboxyl functionalized poly (oxyethylenes) (PEO acid) with sharp molecular weight distribution at Mn=400, 1, 000, 3, 300, and 8, 400 were utilized as telechelic oligomers. They were reacted with piperazine (PZ) and hexamethylenediamine (HA) at 50-60°C to form the complex salts with a 1: 1 composition. The salts were then allowed to polymerize at 100°C with H2O eliminated. By the thermal copolycondensation of the salts with nylon 6, 6 salt various segment block copoly (amide-ethers) with high molecular weight were prepared in high yields. Here, the PEO sequence introduced in the copolymer can be adjustable by the feeding ratio of the both salts and by the selection of the molecular weight of the PEO acid. Chlorination of PEO acids by oxalyl chloride or thionyl chloride gave chlorocarbonyl functionalized poly (oxyethylenes) (PEO acid chloride), which can also be used as telechelic oligomers with high reactivity. They were also submitted to polycondensation and copolycondensation with various diamines in solution at a low temperature.

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  • 高分子論文集

    高分子論文集 41 (11), 657-664, 1984

    公益社団法人 高分子学会

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