‘Radical-controlled’ oxidative polymerization of o-cresol catalyzed by μ-η2 : η2-peroxo dicopper(II) complex
‘Radical-controlled’ oxidative polymerization of o-cresol catalyzed by μ-η2 : η2-peroxo dicopper(II) complex
复制标题
μ-η2 : η2-过氧二铜(II)络合物催化邻甲酚的“自由基控制”氧化聚合
DOI：
10.1016/s0926-860x(99)00388-9
复制
发表时间：
2000
影响因子：
5.5
通讯作者：
Shiro Kobayashi
中科院分区：
文献类型：
--
作者：
H. Higashimura;K. Fujisawa;Y. Moro;M. Kubota;A. Shiga;H. Uyama;Shiro Kobayashi
描述了一种由（1，4，7-三异丙基-1，4，7-三氮杂环壬烷）铜络合物催化的邻甲酚的氧化聚合，由此在分子氧下形成μ-η2：η2-过氧二铜（II）络合物。该络合物与邻甲酚反应，得到“受控”苯氧基自由基-铜（I）络合物，而不形成“自由”苯氧基自由基。所得聚合物主要由2-甲基-1，4-苯醚单元组成，并显示出高的热稳定性。在典型的2，6-二甲基苯酚聚合催化剂（N，N，N′，N′-四甲基乙二胺）铜配合物的催化下，聚合物中含有大量的邻位键结构和醌结构。
Described is an oxidative polymerization of o-cresol catalyzed by (1,4,7-triisopropyl-1,4,7-triazacyclononane)copper complex, from which a μ-η2:η2-peroxo dicopper(II) complex is formed under dioxygen. This complex reacts with o-cresol to give ‘controlled’ phenoxy radical-copper(I) complex exclusively without formation of ‘free’ phenoxy radicals. The resulting polymer was composed mainly of 2-methyl-1,4-phenylene oxide unit and showed high thermal stability. The polymerization catalyzed by (N,N,N′,N′-tetramethylethylenediamine)copper complex, a typical catalyst for 2,6-dimethylphenol polymerization, gave the polymer containing larger amounts of o-linkage structures and quinone moieties.
影响因子：
15
作者：
KITAJIMA, N;FUJISAWA, K;NAKAMURA, A
通讯作者：
NAKAMURA, A