Rapid Syndiospecific (Co) Polymerization of Fluorostyrene with High Monomer Conversion

doi:10.1002/chem.201704584

CORC > 化学研究所 > 中国科学院化学研究所

	Rapid Syndiospecific (Co) Polymerization of Fluorostyrene with High Monomer Conversion
	Wang, Zichuan 1,2; Wang, Meiyan 3; Liu, Jingyao 3; Liu, Dongtao 1; Cui, Dongmei 1
刊名	CHEMISTRY-A EUROPEAN JOURNAL
	2017-12-22
卷号	23 期号:72 页码:18151-18155
关键词	Fluorostyrene Polar Monomer Rare-earth-metal Complex Stereotactic Fluoropolymer Syndioselective Copolymerization
ISSN号	0947-6539
DOI	10.1002/chem.201704584
英文摘要	Fluoromonomers are difficult to polymerize through a coordination mechanism owing to the strong chelation between fluorine and catalysts and the electrondeficient double-bond. We report herein the unprecedented polymerization of para-fluorostyrene (pFS) with excellent activity (1.12 x 10(7) gmol(Ln)(-1)h(-1)), distinguished syndioselectivity (rrrr > 99%) and high conversion (98.4%) using rare-earth-metal catalysts bearing a pyridyl methylene fluorenyl ligand. DFT calculations reveal polar fluorine loses overwhelming coordination priority to the active central metal ion due to the sterically bulky and electron-donating CGC-ligand, thus its power of poisoning the active species is dramatically weakened. Based on this, copolymerization of pFS and styrene (St) has been successfully achieved with high activity and controllable pFS insertion. Conversely, the unlinked half-sandwich rare-earth-metal system shows relatively lower activity, because both the transition-states and intermediates incorporate a m1-F chelated pFS.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000423349600009
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45457]
专题	中国科学院化学研究所
通讯作者	Liu, Dongtao; Cui, Dongmei
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China 2.Univ Chinese Acad Sci, Changchun Branch, Beijing, Peoples R China 3.Jilin Univ, Inst Theoret Chem, Changchun 130022, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zichuan,Wang, Meiyan,Liu, Jingyao,et al. Rapid Syndiospecific (Co) Polymerization of Fluorostyrene with High Monomer Conversion[J]. CHEMISTRY-A EUROPEAN JOURNAL,2017,23(72):18151-18155.
APA	Wang, Zichuan,Wang, Meiyan,Liu, Jingyao,Liu, Dongtao,&Cui, Dongmei.(2017).Rapid Syndiospecific (Co) Polymerization of Fluorostyrene with High Monomer Conversion.CHEMISTRY-A EUROPEAN JOURNAL,23(72),18151-18155.
MLA	Wang, Zichuan,et al."Rapid Syndiospecific (Co) Polymerization of Fluorostyrene with High Monomer Conversion".CHEMISTRY-A EUROPEAN JOURNAL 23.72(2017):18151-18155.