Rapid Syndiospecific (Co) Polymerization of Fluorostyrene with High Monomer Conversion
文献类型：期刊论文
| 作者 | Wang, Zichuan1,2; Wang, Meiyan3; Liu, Jingyao3; Liu, Dongtao1; Cui, Dongmei1 |
| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 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 |
| WOS记录号 | WOS:000423349600009 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 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. |
入库方式： OAI收割
来源：化学研究所
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