Polycondensation of Bis(diazocarbonyl) Compounds with Aromatic Diols and Cyclic Ethers: Synthesis of New Type of Polyetherketones
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- 作者：Eiji Ihara ; Kotaro Saiki ; Yuko Goto ; Tomomichi Itoh ; Kenzo Inoue
- 刊名：Macromolecules
- 出版年：2010
- 出版时间：May 25, 2010
- 年：2010
- 卷：43
- 期：10
- 页码：4589-4598
- 全文大小：957K
- 年卷期：v.43,no.10(May 25, 2010)
- ISSN：1520-5835
文摘
A series of new polyetherketones was prepared by Rh-catalyzed polycondensation of bis(diazocarbonyl) compounds 1a−c with aromatic diols 2A−C in cyclic ethers (THF, THP, and 1,4-dioxane). In addition to the expected insertion of diazo-bearing carbon of 1a−c into O−H of 2A−C releasing N2, unexpected incorporation of the ring-opened cyclic ethers between the diazo-bearing carbon of 1a−c and phenolic oxygen of 2A−C occurred, providing the polymer main chains with additional oxyalkylene units. The extent of cyclic ether incorporation relative to the expected insertion depended on the kind of the cyclic ether: THF, 95−98%; THP, 26−32%; 1,4-dioxane, 11−21%. Polyetherketones with a variety of main chain structures can be prepared by the new polycondensation.