Suzuki-Miyaura catalyst-transfer polycondensation with Pd(IPr)(OAc)2 as the catalyst for the controlled synthesis of polyfluorenes and polythiophenes

	Suzuki-Miyaura catalyst-transfer polycondensation with Pd(IPr)(OAc)2 as the catalyst for the controlled synthesis of polyfluorenes and polythiophenes
	Sui, Aiguo ; Shi, Xincui ; Tian, Hongkun ; Geng,Yanhou,Wang,Fosong
刊名	polymer chemistry
	2014
卷号	5 期号:24 页码:7072-7080
关键词	CROSS-COUPLING REACTIONS CHAIN-GROWTH POLYMERIZATION PREFERENTIAL OXIDATIVE ADDITION HETEROCYCLIC CARBENE COMPLEXES 25TH ANNIVERSARY ARTICLE PI-CONJUGATED POLYMERS AB-TYPE MONOMERS SOLAR-CELLS ARYLBORONIC ACIDS KUMADA CATALYST
通讯作者	geng,yh
英文摘要	controlled suzuki-miyaura catalyst-transfer polycondensations (sctps) of fluorene-and thiophenebased ab-type monomers have been demonstrated with a n-heterocyclic carbene (nhc)-based pd complex, pd(ipr)(oac)(2), as the catalyst. the number average molecular weights (m(n)s) of the resulting poly(9,9-dioctyl-9h-fluorene)s (pf8s) were linear to the conversions of the monomer. pf8s with m(n)s in the range of 10.5-69.2 kda and polydispersity indices (pdis) of similar to 1.60 were successfully synthesized by tuning the feed ratios ([monomer](0)/[pd]). the protocol is also applicable to the controlled synthesis of poly(3-hexylthiophene) (p3ht). polymers with m(n)s of 9.5-63.8 kda, which were linearly correlated to feed ratios, were obtained when the catalyst loading was tuned to 5-0.5 mol%. the "living" characteristics of the polymerization were also confirmed by monomer-addition and block copolymerization experiments. in addition, pf8 with a moderate molecular weight (mw) was mainly end-capped with br/h end groups as evidenced by matrix-assisted laser desorption/ionization time of flight (maldi-tof) mass and h-1 nmr spectra, indicating that this polymerization involves a catalyst-transfer mechanism. the mechanism was further confirmed by the fact that the cross-coupling of dibromofluorene (1 equiv.) and biphenylboronic acid ester (1 equiv.) with pd(ipr)(oac)(2) as the catalyst preferentially gave a di-substituted product.
收录类别	SCI
语种	英语
公开日期	2015-07-14
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/53014]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Sui, Aiguo,Shi, Xincui,Tian, Hongkun,et al. Suzuki-Miyaura catalyst-transfer polycondensation with Pd(IPr)(OAc)2 as the catalyst for the controlled synthesis of polyfluorenes and polythiophenes[J]. polymer chemistry,2014,5(24):7072-7080.
APA	Sui, Aiguo,Shi, Xincui,Tian, Hongkun,&Geng,Yanhou,Wang,Fosong.(2014).Suzuki-Miyaura catalyst-transfer polycondensation with Pd(IPr)(OAc)2 as the catalyst for the controlled synthesis of polyfluorenes and polythiophenes.polymer chemistry,5(24),7072-7080.
MLA	Sui, Aiguo,et al."Suzuki-Miyaura catalyst-transfer polycondensation with Pd(IPr)(OAc)2 as the catalyst for the controlled synthesis of polyfluorenes and polythiophenes".polymer chemistry 5.24(2014):7072-7080.