Highly Syndioselective 3,4-Trans Polymerization of (E)-1-(4-Methylpheny1)-1,3-butadiene by Fluorenyl N-Heterocyclic Carbene Ligated Lutetium Bis(alkyl) Precursor
文献类型：期刊论文
| 作者 | Yao, Changguang1,2; Lin, Fei1,2; Wang, Meiyan3; Liu, Dongtao1; Liu, Bo1; Liu, Na1,2; Wang, Zichuan1,2; Long, Shiyu1,2; Wu, Chunji1; Cui, Dongmei1 |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2015-04-14 |
| 卷号 | 48期号:7页码:1999-2005 |
| 英文摘要 | (E)-1-(4-Methylphenyl)-1,3-butadiene (E-1-MPBD) synthesized via the Wittig-type reaction was polymerized with the ternary catalytic system (Flu-NHC)Lu(CH2SiMe3)(2)/AliBu(3)/[Ph3C][B(C6F5)(4)] (Flu-NHC = C13H8CH2CH2(NCHCHN(C6H2Me3-2,4,6)C) to afford a new product containing exclusively trans-3,4 (>99%) units with perfect syndiotacticity (rrrr > 99%). The regio-3,4 tacticity was proved by the IR and NMR (H-1 and C-13) spectroscopic analyses, while the 3,4-stereotacticity was confirmed by a model polymer with lower regularity (3,4 = 90.9%, rrrr = 49.3%) prepared by the binary catalytic system (Am-NHC)Lu(CH2SiMe3)(2)/[Ph3C][B(C6F5)(4)] (Am-NHC = 2,6-(PrC6H3N)-Pr-i-C(C6H5)NCH2CH2(NCHCHN(C6H2Me3-2,4,6)C). The trans-planar conformation was uncovered through 2D-NOESY and C-13 CPMAS NMR technologies. This represents the first stereo 3,4-syndioselective polymerization of 1,3-dienes achieved by a rare-earth metal based catalyst. Moreover, hydrogenating the resulting polymer gave the highly syndiotactic poly(4-methylphenyl-1-butene), which cannot be achieved by any other manner at the present stage. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-11-03 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/28651]  |
| 专题 | 化学研究所_高分子物理与化学实验室 |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Changchun Branch, Changchun 130022, Peoples R China 3.Jilin Univ, Inst Theoret Chem, State Key Lab Theoret & Computat Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Changguang,Lin, Fei,Wang, Meiyan,et al. Highly Syndioselective 3,4-Trans Polymerization of (E)-1-(4-Methylpheny1)-1,3-butadiene by Fluorenyl N-Heterocyclic Carbene Ligated Lutetium Bis(alkyl) Precursor[J]. MACROMOLECULES,2015,48(7):1999-2005. |
| APA | Yao, Changguang.,Lin, Fei.,Wang, Meiyan.,Liu, Dongtao.,Liu, Bo.,...&Cui, Dongmei.(2015).Highly Syndioselective 3,4-Trans Polymerization of (E)-1-(4-Methylpheny1)-1,3-butadiene by Fluorenyl N-Heterocyclic Carbene Ligated Lutetium Bis(alkyl) Precursor.MACROMOLECULES,48(7),1999-2005. |
| MLA | Yao, Changguang,et al."Highly Syndioselective 3,4-Trans Polymerization of (E)-1-(4-Methylpheny1)-1,3-butadiene by Fluorenyl N-Heterocyclic Carbene Ligated Lutetium Bis(alkyl) Precursor".MACROMOLECULES 48.7(2015):1999-2005. |
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来源：化学研究所
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