Facile Synthesis of Hyperbranched Ethylene Oligomers and Ethylene/Methyl Acrylate Co-oligomers with Different Microscopic Chain Architectures

Ethylene-Methyl Acrylate Co-oligomers with Different Microscopic Chain Architectures Huijun Fana, Guanru Chang, Huiqin, Bi, Xu Gui, Hui Wang*, Guoyong Xu*, Shengyu Dai* a,b Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, Anhui, 230601, China. School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China. School of Chemistry and Chemical Engineering, Key Laboratory of Inorganic Functional Material, Huangshan University, Huangshan 245041, Anhui, 230601, China. The first two authors are equal first authors.

[1]  You Ge,et al.  Synthesis of Branched Polyethylene and Ethylene-MA Copolymers Using Unsymmetrical Iminopyridyl Nickel and Palladium Complexes , 2021, Organometallics.

[2]  L. Veiros,et al.  Benzylnickel(II) Complexes of 2-Iminopyrrolyl Chelating Ligands: Synthesis, Structure, and Catalytic Oligo-/Polymerization of Ethylene to Hyperbranched Polyethylene , 2021, Organometallics.

[3]  Xiaoqian Hu,et al.  Fluorinated α-Diimine Nickel Mediated Ethylene (Co)Polymerization. , 2021, Chemistry.

[4]  Xiaoqian Hu,et al.  Horizontally and Vertically Concerted Steric Strategy in α‐Diimine Nickel Promoted Ethylene (Co)Polymerization † , 2021, Chinese Journal of Chemistry.

[5]  Xiaohui Kang,et al.  Facile Access to Polar-Functionalized Ultrahigh Molecular Weight Polyethylene at Ambient Conditions , 2021 .

[6]  You Ge,et al.  Flexible "Sandwich" (8-Alkylnaphthyl α-Diimine) Catalysts in Insertion Polymerization. , 2021, Inorganic chemistry.

[7]  Weigang Fan,et al.  Efficient incorporation of a polar comonomer for direct synthesis of hyperbranched polar functional ethylene oligomers , 2021, New Journal of Chemistry.

[8]  Weigang Fan,et al.  Suppression of chain transfer via a restricted rotation effect of dibenzosuberyl substituents in polymerization catalysis , 2021 .

[9]  Shuaikang Li,et al.  Highly efficient incorporation of polar comonomers in copolymerizations with ethylene using iminopyridyl palladium system , 2021 .

[10]  Zhe Liu,et al.  Rotation‐restricted strategy to synthesize high molecular weight polyethylene using iminopyridyl nickel and palladium catalyst , 2020, Applied Organometallic Chemistry.

[11]  B. Milani,et al.  Copolymerization of Ethylene and Methyl Acrylate by Pyridylimino Ni(II) Catalysts Affording Hyperbranched Poly(ethylene-co-methyl acrylate)s with Tunable Structures of the Ester Groups , 2020 .

[12]  S. Mecking,et al.  Neutral Nickel(II) Catalysts: From Hyperbranched Oligomers to Nanocrystal-Based Materials. , 2020, Accounts of chemical research.

[13]  Shuaikang Li,et al.  Effect of aryl orientation on olefin polymerization in iminopyridyl catalytic system , 2020 .

[14]  Shuaikang Li,et al.  A remote nonconjugated electron effect in insertion polymerization with α-diimine nickel and palladium species , 2020 .

[15]  Hongliang Mu,et al.  Systematic studies on dibenzhydryl and pentiptycenyl substituted pyridine-imine nickel(ii) mediated ethylene polymerization. , 2020, Dalton transactions.

[16]  Lihua Guo,et al.  Flexible cycloalkyl substituents in insertion polymerization with α-diimine nickel and palladium species , 2020 .

[17]  Shuaikang Li,et al.  8-Arylnaphthyl substituent retarding chain transfer in insertion polymerization with unsymmetrical α-diimine systems , 2020 .

[18]  Binyuan Liu,et al.  π–π interaction effect in insertion polymerization with α-Diimine palladium systems , 2019, Journal of Catalysis.

[19]  Wenting Sun,et al.  Bulky yet flexible substituents in insertion polymerization with α-diimine nickel and palladium systems , 2019, Polymer Chemistry.

[20]  Binyuan Liu,et al.  Systematic Investigations of Ligand Steric Effects on α-Diimine Nickel Catalyzed Olefin Polymerization and Copolymerization , 2019, Organometallics.

[21]  Wenting Sun,et al.  Monoligated vs Bisligated Effect in Iminopyridyl Nickel Catalyzed Ethylene Polymerization , 2019, Organometallics.

[22]  Liping Zhao,et al.  Synthesis of functional and hyperbranched ethylene oligomers using unsymmetrical α-diimine palladium catalysts , 2019, European Polymer Journal.

[23]  Yuliang Yang,et al.  Large-scale synthesis of novel sterically hindered acenaphthene-based α-diimine ligands and their application in coordination chemistry , 2018 .

[24]  L. Cavallo,et al.  Control of Chain Walking by Weak Neighboring Group Interactions in Unsymmetrical Catalysts. , 2017, Journal of the American Chemical Society.

[25]  Qing Wu,et al.  Synthesis, characterization, and catalytic ethylene oligomerization of pyridine-imine palladium complexes , 2018, Chinese Journal of Polymer Science.

[26]  Tonino Caruso,et al.  Synthesis of hyperbranched low molecular weight polyethylene oils by an iminopyridine nickel(II) catalyst , 2017 .

[27]  Xinquan Hu,et al.  Rigid geometry 8-arylimino-7,7-dimethyl-5,6-dihydroquinolyl nickel bromides: single-site active species towards ethylene polymerization , 2016 .

[28]  Changle Chen,et al.  Synthesis of high molecular weight polyethylene using iminopyridyl nickel catalysts. , 2016, Chemical communications.

[29]  O. Daugulis,et al.  Synthesis of Branched Polyethylene with “Half-Sandwich” Pyridine-Imine Nickel Complexes , 2016 .

[30]  Wen‐Hua Sun,et al.  Targeting polyethylene waxes: 9-(2-cycloalkylphenylimino)-5,6,7,8-tetrahydrocycloheptapyridylnickel halides and their use as catalysts for ethylene polymerization , 2015 .

[31]  Yuguo Ma,et al.  Fluorinated Nickel(II) Phenoxyiminato Catalysts: Exploring the Role of Fluorine Atoms in Controlling Polyethylene Productivities and Microstructures , 2015 .

[32]  Xinquan Hu,et al.  Ring-tension adjusted ethylene polymerization by aryliminocycloheptapyridyl nickel complexes. , 2015, Dalton transactions.

[33]  Wen‐Hua Sun,et al.  8-(2-Cycloalkylphenylimino)-5,6,7-trihydro-quinolylnickel halides: polymerizing ethylene to highly branched and lower molecular weight polyethylenes , 2015 .

[34]  T. Marks,et al.  Ni(II) Phenoxyiminato Olefin Polymerization Catalysis: Striking Coordinative Modulation of Hyperbranched Polymer Microstructure and Stability by a Proximate Sulfonyl Group , 2014 .

[35]  Wen‐Hua Sun,et al.  Synthesis and characterization of 2-(2-benzhydrylnaphthyliminomethyl)pyridylnickel halides: formation of branched polyethylene. , 2014, Dalton transactions.

[36]  Philipp Roesle,et al.  Monofunctional hyperbranched ethylene oligomers. , 2014, Journal of the American Chemical Society.

[37]  S. Mecking,et al.  Role of Electron-Withdrawing Remote Substituents in Neutral Nickel(II) Polymerization Catalysts , 2013 .

[38]  P. Fornasiero,et al.  Palladium‐Catalyzed Ethylene/Methyl Acrylate Cooligomerization: Effect of a New Nonsymmetric α‐Diimine , 2013 .

[39]  Fosong Wang,et al.  Ethylene polymerization by 2-iminopyridylnickel halide complexes: synthesis, characterization and catalytic influence of the benzhydryl group. , 2012, Dalton transactions.

[40]  T. Marks,et al.  Suppression of β-Hydride Chain Transfer in Nickel(II)-Catalyzed Ethylene Polymerization via Weak Fluorocarbon Ligand–Product Interactions , 2012 .

[41]  Zhibin Ye,et al.  Hyperbranched polyethylenes by chain walking polymerization: synthesis, properties, functionalization, and applications , 2012 .

[42]  Peng Xiang,et al.  Synthesis and characterization of low- and medium-molecular-weight hyperbranched polyethylenes by chain walking ethylene polymerization with Pd–diimine catalysts , 2011 .

[43]  N. Chatani,et al.  Palladium-catalyzed cyclocoupling of 2-halobiaryls with isocyanides via the cleavage of carbon-hydrogen bonds. , 2010, The Journal of organic chemistry.

[44]  G. Giambastiani,et al.  Olefin oligomerization, homopolymerization and copolymerization by late transition metals supported by (imino)pyridine ligands , 2010 .

[45]  Albena Lederer,et al.  Hyperbranched and highly branched polymer architectures--synthetic strategies and major characterization aspects. , 2009, Chemical reviews.

[46]  C. Lodeiro,et al.  A new bis(1-naphthylimino)acenaphthene compound and its Pd(II) and Zn(II) complexes: synthesis, characterization, solid-state structures and density functional theory studies on the syn and anti isomers. , 2008, Inorganic chemistry.

[47]  S. Mecking,et al.  Remote substituents controlling catalytic polymerization by very active and robust neutral nickel(II) complexes. , 2004, Angewandte Chemie.

[48]  Z. Guan,et al.  Novel Branching Topology in Polyethylenes As Revealed by Light Scattering and 13C NMR , 2000 .

[49]  M. Leskelä,et al.  Pyridinylimine-based nickel(II) and palladium(II) complexes: preparation, structural characterization and use as alkene polymerization catalysts , 2000 .

[50]  E. Oñate,et al.  Synthesis of branched polyethylene using (α-diimine)nickel(II) catalysts : influence of temperature, ethylene pressure, and ligand structure on polymer properties , 2000 .

[51]  M. Leskelä,et al.  Polymerization of ethylene with new diimine complexes of late transition metals , 1999 .

[52]  S. Meneghetti,et al.  Oligomerization of Olefins Catalyzed by New Cationic Palladium(II) Complexes Containing an Unsymmetrical α-Diimine Ligand , 1999 .

[53]  R. F. Souza,et al.  13C NMR Determination of the Composition of Linear Low-Density Polyethylene Obtained with [η3-Methallyl-nickel-diimine]PF6 Complex , 1999 .

[54]  J. C. Randall.  A REVIEW OF HIGH RESOLUTION LIQUID 13CARBON NUCLEAR MAGNETIC RESONANCE CHARACTERIZATIONS OF ETHYLENE-BASED POLYMERS , 1989 .

[55]  A. Markovac,et al.  Antimalarials. 12. Preparation of carbon isosteres of selected 4-pyridinemethanols as suppressive antimalarials. , 1980, Journal of medicinal chemistry.