• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

通过 appended with -2,4-bis(di(4-methoxyphenyl)methyl)-6-methylphenyl 的 ,,,-Co 预催化剂实现多分散性高密度聚乙烯。（注：原文中“appended with”前面的内容缺失，翻译可能不太准确，需结合完整准确的原文进一步完善。）

Achieving polydispersive HDPE by ,,-Co precatalysts appended with -2,4-bis(di(4-methoxyphenyl)methyl)-6-methylphenyl.

作者信息

Yuan Shi-Fang, Fan Zhe, Yan Yi, Ma Yanping, Han Mingyang, Liang Tongling, Sun Wen-Hua

机构信息

Institute of Applied Chemistry, Shanxi University Taiyuan 030006 People's Republic of China

Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

出版信息

RSC Adv. 2020 Dec 10;10(71):43400-43411. doi: 10.1039/d0ra09333e. eCollection 2020 Nov 27.

DOI:10.1039/d0ra09333e
PMID:35519690
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9058363/
Abstract

A family of unsymmetrical 2-(2,4-bis(di(4-methoxyphenyl)methyl)-6-MeCHN)-6-(1-(arylimino)ethyl)pyridine-cobalt dichloride complexes has been synthesized and characterized by NMR spectroscopy, FT-IR spectroscopy and elemental analysis as well as single crystal X-ray diffraction for Co2 and Co4. Activated with either MAO or MMAO, all the cobalt precatalysts displayed high activities toward ethylene polymerization and produced highly linear polyethylenes with high molecular weights as well as wide polydispersities; for example, the performance using Co1/MAO at 50 °C reached 9.17 × 10 g PE (mol of Co) h with the production polyethylene of molecular weight as high as = 3.14 × 10 g mol, = 134.3 °C besides its wide polydispersity of / of 54.6. Besides the terminal vinyl group of the resultant polyethylenes, it is rare for a late-transition metal catalyst to achieve highly linear polyethylenes with not only wide polydispersity but also high molecular weights, being similar to high-density polyethylenes produced using Phillips catalyst.

摘要

合成了一系列不对称的2-(2,4-双(二(4-甲氧基苯基)甲基)-6-MeCHN)-6-(1-(芳基亚氨基)乙基)吡啶二氯化钴配合物，并通过核磁共振光谱、傅里叶变换红外光谱、元素分析以及对Co2和Co4进行单晶X射线衍射对其进行了表征。用MAO或MMAO活化后，所有钴预催化剂对乙烯聚合均表现出高活性，生成了具有高分子量和宽多分散性的高度线性聚乙烯；例如，在50℃下使用Co1/MAO时，性能达到9.17×10 g PE/(mol Co·h)，生成的聚乙烯分子量高达 = 3.14×10 g/mol， = 134.3℃，此外其多分散性 / 为54.6。除了所得聚乙烯的末端乙烯基外，后过渡金属催化剂很少能得到不仅具有宽多分散性而且具有高分子量的高度线性聚乙烯，这类似于使用菲利普斯催化剂生产的高密度聚乙烯。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/eda1f999eec2/d0ra09333e-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/c7ceab89191f/d0ra09333e-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/279eabed44bc/d0ra09333e-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/cc096fc99f90/d0ra09333e-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/61526ed94c80/d0ra09333e-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/6a82538ca868/d0ra09333e-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/1cf9f495f8d6/d0ra09333e-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/918216890862/d0ra09333e-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/4074b89fecf8/d0ra09333e-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/ed3ffbab5b5f/d0ra09333e-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/5e92a376e20e/d0ra09333e-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/eda1f999eec2/d0ra09333e-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/c7ceab89191f/d0ra09333e-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/279eabed44bc/d0ra09333e-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/cc096fc99f90/d0ra09333e-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/61526ed94c80/d0ra09333e-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/6a82538ca868/d0ra09333e-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/1cf9f495f8d6/d0ra09333e-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/918216890862/d0ra09333e-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/4074b89fecf8/d0ra09333e-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/ed3ffbab5b5f/d0ra09333e-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/5e92a376e20e/d0ra09333e-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85fd/9058363/eda1f999eec2/d0ra09333e-f9.jpg

相似文献

1
Achieving polydispersive HDPE by ,,-Co precatalysts appended with -2,4-bis(di(4-methoxyphenyl)methyl)-6-methylphenyl.通过 appended with -2,4-bis(di(4-methoxyphenyl)methyl)-6-methylphenyl 的 ,,,-Co 预催化剂实现多分散性高密度聚乙烯。（注：原文中“appended with”前面的内容缺失，翻译可能不太准确，需结合完整准确的原文进一步完善。）
RSC Adv. 2020 Dec 10;10(71):43400-43411. doi: 10.1039/d0ra09333e. eCollection 2020 Nov 27.
2
Highly Linear Polyethylenes Achieved Using Thermo-Stable and Efficient Cobalt Precatalysts Bearing Carbocyclic-Fused -Pincer Ligand.使用热稳定且高效的含碳环稠合 - 钳型配体的钴前催化剂制备高度线性的聚乙烯。
Molecules. 2019 Mar 25;24(6):1176. doi: 10.3390/molecules24061176.
3
6-Arylimino-2-(2-(1-phenylethyl)naphthalen-1-yl)-iminopyridylmetal (Fe and Co) Complexes as Highly Active Precatalysts for Ethylene Polymerization: Influence of Metal and/or Substituents on the Active, Thermostable Performance of Their Complexes and Resultant Polyethylenes.6-芳亚氨基-2-(2-(1-苯乙基)萘-1-基)-亚氨基吡啶基金属(Fe 和 Co)配合物作为乙烯聚合的高活性前催化剂:金属和/或取代基对其配合物的活性、热稳定性能及所得聚乙烯的影响。
Molecules. 2020 Sep 16;25(18):4244. doi: 10.3390/molecules25184244.
4
Enhancing Ethylene Polymerization of -Cobalt(II) Precatalysts Adorned with a Fluoro-substituent.增强含氟取代基修饰的 - 钴（II）预催化剂的乙烯聚合反应
ACS Omega. 2021 Feb 3;6(6):4448-4460. doi: 10.1021/acsomega.0c05916. eCollection 2021 Feb 16.
5
Activity and Thermal Stability of Cobalt(II)-Based Olefin Polymerization Catalysts Adorned with Sterically Hindered Dibenzocycloheptyl Groups.具有空间位阻二苯并环庚基基团修饰的钴(II)基烯烃聚合催化剂的活性和热稳定性。
Molecules. 2019 May 25;24(10):2007. doi: 10.3390/molecules24102007.
6
Highly linear polyethylenes tailored with 2,6-bis[1-(p-dibenzo-cycloheptylarylimino)ethyl]pyridylcobalt dichlorides.用二氯[2,6-双[1-(对二苯并环庚基芳基亚氨基)乙基]吡啶基]钴定制的高线性聚乙烯。
Dalton Trans. 2019 Apr 23;48(17):5604-5613. doi: 10.1039/c9dt01109a.
7
Controlling the molecular weights of polyethylene waxes using the highly active precatalysts of 2-(1-aryliminoethyl)-9-arylimino-5,6,7,8-tetrahydrocycloheptapyridylcobalt chlorides: synthesis, characterization, and catalytic behavior.使用2-(1-芳基亚氨基乙基)-9-芳基亚氨基-5,6,7,8-四氢环庚并吡啶基氯化钴的高活性预催化剂控制聚乙烯蜡的分子量：合成、表征及催化行为
Dalton Trans. 2016 Jan 14;45(2):657-66. doi: 10.1039/c5dt03779d.
8
Methylene-bridged bimetallic bis(imino)pyridine-cobaltous chlorides as precatalysts for vinyl-terminated polyethylene waxes.亚甲基桥连双金属双（亚氨基）吡啶氯化钴作为乙烯基封端聚乙烯蜡的预催化剂。
Dalton Trans. 2018 May 1;47(17):6124-6133. doi: 10.1039/c8dt00907d.
9
Fusing Carbocycles of Inequivalent Ring Size to a Bis(imino)pyridine-Iron Ethylene Polymerization Catalyst: Distinctive Effects on Activity, PE Molecular Weight, and Dispersity.将不等环大小的碳环融合到双（亚氨基）吡啶 - 铁乙烯聚合催化剂上：对活性、聚乙烯分子量和分散度的独特影响。
Research (Wash D C). 2019 Oct 16;2019:9426063. doi: 10.34133/2019/9426063. eCollection 2019.
10
High molecular weight polyethylenes of narrow dispersity promoted using bis(arylimino)cyclohepta[b]pyridine-cobalt catalysts ortho-substituted with benzhydryl & cycloalkyl groups.使用二苯甲基和环烷基邻位取代的双（芳基亚氨基）环庚并[b]吡啶-钴催化剂制备的窄分散性高分子量聚乙烯。
Dalton Trans. 2020 Apr 15;49(15):4774-4784. doi: 10.1039/d0dt00576b.

引用本文的文献

1
Achieving Linear α-Macro-olefins in Ethylene Polymerization through Precisely Tuned Bis(imino)pyridylcobalt Precatalysts with Steric and Electronic Parameters.通过具有空间和电子参数的精确调谐双（亚氨基）吡啶钴预催化剂在乙烯聚合中实现线性α-烯烃
Precis Chem. 2024 Sep 26;2(12):655-668. doi: 10.1021/prechem.4c00067. eCollection 2024 Dec 23.
2
4,4'-Dimethoxybenzhydryl substituent augments performance of bis(imino)pyridine cobalt-based catalysts in ethylene polymerization.4,4'-二甲氧基二苯甲基取代基增强双（亚氨基）吡啶钴基催化剂在乙烯聚合中的性能。
RSC Adv. 2022 May 24;12(25):15741-15750. doi: 10.1039/d2ra01547a. eCollection 2022 May 23.
3

本文引用的文献

1
6-Arylimino-2-(2-(1-phenylethyl)naphthalen-1-yl)-iminopyridylmetal (Fe and Co) Complexes as Highly Active Precatalysts for Ethylene Polymerization: Influence of Metal and/or Substituents on the Active, Thermostable Performance of Their Complexes and Resultant Polyethylenes.6-芳亚氨基-2-(2-(1-苯乙基)萘-1-基)-亚氨基吡啶基金属(Fe 和 Co)配合物作为乙烯聚合的高活性前催化剂:金属和/或取代基对其配合物的活性、热稳定性能及所得聚乙烯的影响。
Molecules. 2020 Sep 16;25(18):4244. doi: 10.3390/molecules25184244.
2
Bis-cycloheptyl-fused bis(imino)pyridine-cobalt catalysts for PE wax formation: positive effects of fluoride substitution on catalytic performance and thermal stability.用于聚乙烯蜡形成的双环庚基稠合双（亚氨基）吡啶钴催化剂：氟取代对催化性能和热稳定性的积极影响。
Dalton Trans. 2020 Jul 17;49(27):9425-9437. doi: 10.1039/d0dt01876g.
3
Fluorinated Sterically Bulky Mononuclear and Binuclear 2-Iminopyridylnickel Halides for Ethylene Polymerization: Effects of Ligand Frameworks and Remote Substituents.
用于乙烯聚合的含氟空间位阻单核和双核2-亚氨基吡啶基卤化镍：配体骨架和远程取代基的影响
ACS Omega. 2021 Oct 29;6(44):30157-30172. doi: 10.1021/acsomega.1c05418. eCollection 2021 Nov 9.
4,4'-Difluorobenzhydryl-modified bis(imino)-pyridyliron(ii) chlorides as thermally stable precatalysts for strictly linear polyethylenes with narrow dispersities.4,4'-二氟二苯甲基修饰的双（亚氨基）吡啶氯化铁（II）作为用于制备具有窄分散度的严格线性聚乙烯的热稳定预催化剂。
Dalton Trans. 2020 Jun 9;49(22):7384-7396. doi: 10.1039/d0dt01344g.
4
High molecular weight polyethylenes of narrow dispersity promoted using bis(arylimino)cyclohepta[b]pyridine-cobalt catalysts ortho-substituted with benzhydryl & cycloalkyl groups.使用二苯甲基和环烷基邻位取代的双（芳基亚氨基）环庚并[b]吡啶-钴催化剂制备的窄分散性高分子量聚乙烯。
Dalton Trans. 2020 Apr 15;49(15):4774-4784. doi: 10.1039/d0dt00576b.
5
Fusing Carbocycles of Inequivalent Ring Size to a Bis(imino)pyridine-Iron Ethylene Polymerization Catalyst: Distinctive Effects on Activity, PE Molecular Weight, and Dispersity.将不等环大小的碳环融合到双（亚氨基）吡啶 - 铁乙烯聚合催化剂上：对活性、聚乙烯分子量和分散度的独特影响。
Research (Wash D C). 2019 Oct 16;2019:9426063. doi: 10.34133/2019/9426063. eCollection 2019.
6
Probing the effect of ortho-cycloalkyl ring size on activity and thermostability in cycloheptyl-fused N,N,N-iron ethylene polymerization catalysts.探究邻环烷基大小对环庚基融合 N,N,N-铁乙烯聚合催化剂活性和热稳定性的影响。
Dalton Trans. 2020 Jan 7;49(1):136-146. doi: 10.1039/c9dt04325j. Epub 2019 Dec 3.
7
Steric and electronic modulation of iron catalysts as a route to remarkably high molecular weight linear polyethylenes.通过对铁催化剂的立体和电子调节来制备高分子量线性聚乙烯。
Dalton Trans. 2019 Dec 3;48(47):17488-17498. doi: 10.1039/c9dt03880a.
8
Activity and Thermal Stability of Cobalt(II)-Based Olefin Polymerization Catalysts Adorned with Sterically Hindered Dibenzocycloheptyl Groups.具有空间位阻二苯并环庚基基团修饰的钴(II)基烯烃聚合催化剂的活性和热稳定性。
Molecules. 2019 May 25;24(10):2007. doi: 10.3390/molecules24102007.
9
gem-Dimethyl-substituted bis(imino)dihydroquinolines as thermally stable supports for highly active cobalt catalysts that produce linear PE waxes.偕二甲基取代的双（亚氨基）二氢喹啉作为用于生产线性聚乙烯蜡的高活性钴催化剂的热稳定载体。
Dalton Trans. 2019 Jun 21;48(23):8175-8185. doi: 10.1039/c9dt01345h. Epub 2019 May 15.
10
Highly linear polyethylenes tailored with 2,6-bis[1-(p-dibenzo-cycloheptylarylimino)ethyl]pyridylcobalt dichlorides.用二氯[2,6-双[1-(对二苯并环庚基芳基亚氨基)乙基]吡啶基]钴定制的高线性聚乙烯。
Dalton Trans. 2019 Apr 23;48(17):5604-5613. doi: 10.1039/c9dt01109a.