期刊
MACROMOLECULES
卷 46, 期 2, 页码 370-374出版社
AMER CHEMICAL SOC
DOI: 10.1021/ma302558z
关键词
-
资金
- KAKENHI from Japan Society for the Promotion of Science [23350042, 24750088]
- ACT-C program of Japan Science and Technology Agency
- Grants-in-Aid for Scientific Research [23350042, 24750088] Funding Source: KAKEN
Direct arylation polymerization has attracted a great deal of attention as an efficient method for synthesizing it-conjugated polymers without the use of organometallic reagents. This paper describes that Pd-2(dba)(3)center dot CHCl3 (0.5 mol %) and P(C6H4-o-OMe)(3) (L1, 2.0 mol %), in conjunction with a carboxylic acid (AcOH or PivOH) and a base (Cs2CO3), exhibit high catalyst performance in polycondensation of 2,7-dibromo-9,9-dioctylfluorene and 1,2,4,S-tetrafluorobenzene. Unlike conventional catalytic direct arylation systems that have need to use highly polar solvents such as DMA and DMF, the present catalytic system is sufficiently reactive in THF and toluene to afford poly[(9,9-dioctylfluorene-2,7-diyl)-alt-(2,3,5,6-tetrafluoro-1,4-phenylene)] (PDOF-TP) with extremely high molecular weight (M-n up to 347 700) in high yield.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据