Controlled Synthesis of Polyfluorenes via Kumada Catalyst Transfer Polycondensation with Ni(acac)(2)/dppp as the Catalyst

doi:10.1021/ma3009299

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	Controlled Synthesis of Polyfluorenes via Kumada Catalyst Transfer Polycondensation with Ni(acac)(2)/dppp as the Catalyst
	Sui, Aiguo 1,2; Shi, Xincui 1; Wu, Shupeng 1,2; Tian, Hongkun 1; Geng, Yanhou 1; Wang, Fosong 1
刊名	MACROMOLECULES
	2012-07-10
卷号	45 期号:13 页码:5436-5443
ISSN号	0024-9297
DOI	10.1021/ma3009299
英文摘要	A new catalyst system, i.e., nickel acetylacetonate/1,3-bis(diphenylphosphino)propane (Ni(acac)(2)/dppp), was explored to catalyze the Kumada catalyst transfer polycondensation (KCTP) of three fluorene monomers with different substituents at 9-position. The "living" nature of the polymerization was confirmed by polymerization kinetic studies, "monomer addition" experiment and block copolymerizations. As a result, poly(9,9-dioctylfluorene)s (PF8s) with the number-average molecular weights (M(n)s) in the range 2.8-62.2 kDa and polydispersity indices (PDIs) of similar to 1.20 were successfully synthesized in a controlled manner. The syntheses of fluorene-fluorene and fluorene-thiophene diblock copolymers with M(n)s up to 46 kDa were also demonstrated. A complex, i.e. Ni(dppp)(acac)(2), with an octahedral coordination geometry was isolated and confirmed by X-ray crystallographic analysis. The polymerization experiments indicated that the in situ formed Ni(dppp)(acac)(2) should be the active catalyst. To the best of our knowledge, this is the first report on the controlled synthesis of polyfluorenes (PFs) via KCTP.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000306200500013
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/47863]
专题	中国科学院化学研究所
通讯作者	Geng, Yanhou
作者单位	1.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Sui, Aiguo,Shi, Xincui,Wu, Shupeng,et al. Controlled Synthesis of Polyfluorenes via Kumada Catalyst Transfer Polycondensation with Ni(acac)(2)/dppp as the Catalyst[J]. MACROMOLECULES,2012,45(13):5436-5443.
APA	Sui, Aiguo,Shi, Xincui,Wu, Shupeng,Tian, Hongkun,Geng, Yanhou,&Wang, Fosong.(2012).Controlled Synthesis of Polyfluorenes via Kumada Catalyst Transfer Polycondensation with Ni(acac)(2)/dppp as the Catalyst.MACROMOLECULES,45(13),5436-5443.
MLA	Sui, Aiguo,et al."Controlled Synthesis of Polyfluorenes via Kumada Catalyst Transfer Polycondensation with Ni(acac)(2)/dppp as the Catalyst".MACROMOLECULES 45.13(2012):5436-5443.