REARRANGEMENT OF THE MAIN-CHAIN OF AN ORGANOCOBALT POLYMER - SYNTHESIS OF NOVEL 2-PYRIDONE-CONTAINING POLYMERS BY THE REACTION WITH ISOCYANATES

被引：35

作者：

TOMITA, I ^{[1
]}

NISHIO, A ^{[1
]}

ENDO, T ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,RESOURCES UTILIZAT RES LAB,MIDORI KU,YOKOHAMA,KANAGAWA 226,JAPAN

来源：

MACROMOLECULES | 1995年 / 28卷 / 09期

关键词：

D O I：

10.1021/ma00113a005

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Novel polymers having pyridone moieties as well as aromatic systems in the main chain were synthesized by the reaction of an organometallic polymer having cobaltacyclopentadiene moieties in the main chain (1) with various isocyanates (2). When dark brown 1 and 5 equiv of n-butyl isocyanate (2a) were heated in tetrahydrofuran at 120 degrees C for 6 h in a sealed tube, a greenish polymer (3a) was obtained in 99% yield by precipitation with methanol. From the spectroscopic measurements, the resulting polymer was found to contain N-n-butyl-2-pyridone and (eta(4)-cyclobutadiene)cobalt moieties (68% and 32%, respectively). By changing the feed ratio of 2a/1, the composition of a-pyridone and cyclobutadienecobalt moieties could be controlled. Using various isocyanates (2a-2d), 2-pyridone-containing polymers with various substituents were obtained. The cross-linking reaction could be also possible by using diisocyanate (2f).

引用

页码：3042 / 3047

页数：6

共 11 条

[1]

CHUJO Y, 1991, POLYM BULL, V25, P1

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