1
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Charoenpanich T, Anantawaraskul S, Soares JBP, Wongmahasirikun P, Shiohara S. Modeling Propylene Polymerization in a Two‐Reactor System: Model Development and Parameter Estimation. MACROMOL REACT ENG 2022. [DOI: 10.1002/mren.202200027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Thanutchoke Charoenpanich
- Department of Chemical Engineering Faculty of Engineering Kasetsart University 50 Ngam Wong Wan Rd. Chatuchak Bangkok 10900 Thailand
| | - Siripon Anantawaraskul
- Department of Chemical Engineering Faculty of Engineering Kasetsart University 50 Ngam Wong Wan Rd. Chatuchak Bangkok 10900 Thailand
- Center for Advanced Studies in Nanotechnology and Its Applications in Chemical Food and Agricultural Industries Kasetsart University Bangkok 10900 Thailand
| | - João B. P. Soares
- Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta Canada
| | - Phonpimon Wongmahasirikun
- Thai Polyethylene Co., Ltd 10 I‐1 Road, Map Ta Phut Industrial Estate, Muang District Rayong 21150 Thailand
| | - Supawadee Shiohara
- Thai Polyethylene Co., Ltd 10 I‐1 Road, Map Ta Phut Industrial Estate, Muang District Rayong 21150 Thailand
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2
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Belsare S, Tseng D, Ozcan A, Coté G. Monitoring gestational diabetes at the point-of-care via dual glycated albumin lateral flow assays in conjunction with a handheld reader. Analyst 2022; 147:5518-5527. [DOI: 10.1039/d2an01238c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A dual assay cartridge was developed and used in conjunction with a handheld reader for sensing % glycated albumin to monitor gestational diabetes at home.
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Affiliation(s)
- Sayali Belsare
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, USA
| | - Derek Tseng
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, USA
| | - Aydogan Ozcan
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, USA
- Bioengineering Department, University of California, Los Angeles, CA, USA
| | - Gerard Coté
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, USA
- Texas Engineering Experiment Station Centre for Remote Health Technologies and Systems, College Station, TX, USA
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3
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Zhang J, Mason AH, Wang Y, Motta A, Kobayashi T, Pruski M, Gao Y, Marks TJ. Beyond the Active Site. Cp*ZrMe
3
/Sulfated Alumina‐Catalyzed Olefin Polymerization Tacticity via Catalyst⋅⋅⋅Surface Ion‐Pairing. ChemCatChem 2021. [DOI: 10.1002/cctc.202100406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jialong Zhang
- Department of Chemistry and the Institute for Catalysis in Energy Processes (ICEP) Northwestern University 2145 Sheridan Road Evanston IL 60208–3113 USA
| | - Alexander H. Mason
- Department of Chemistry and the Institute for Catalysis in Energy Processes (ICEP) Northwestern University 2145 Sheridan Road Evanston IL 60208–3113 USA
| | - Yang Wang
- Department of Chemistry and the Institute for Catalysis in Energy Processes (ICEP) Northwestern University 2145 Sheridan Road Evanston IL 60208–3113 USA
| | - Alessandro Motta
- Dipartimento di Scienze Chimiche Università di Roma “La Sapienza” and INSTM UdR Roma Piazzale Aldo Moro 5 I-00185 Roma Italy
| | - Takeshi Kobayashi
- U.S. DOE Ames Laboratory Iowa State University Ames IA 50011–3020 USA
| | - Marek Pruski
- U.S. DOE Ames Laboratory Iowa State University Ames IA 50011–3020 USA
| | - Yanshan Gao
- Department of Chemistry and the Institute for Catalysis in Energy Processes (ICEP) Northwestern University 2145 Sheridan Road Evanston IL 60208–3113 USA
| | - Tobin J. Marks
- Department of Chemistry and the Institute for Catalysis in Energy Processes (ICEP) Northwestern University 2145 Sheridan Road Evanston IL 60208–3113 USA
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4
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Antinucci G, Vittoria A, Cipullo R, Busico V. Regioirregular Monomeric Units in Ziegler–Natta Polypropylene: A Sensitive Probe of the Catalytic Sites. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00433] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Giuseppe Antinucci
- Laboratory of Stereoselective Polymerizations (LSP), Department of Chemical Sciences, Federico II University, Via Cintia, 80126 Naples, Italy
| | - Antonio Vittoria
- Laboratory of Stereoselective Polymerizations (LSP), Department of Chemical Sciences, Federico II University, Via Cintia, 80126 Naples, Italy
| | - Roberta Cipullo
- Laboratory of Stereoselective Polymerizations (LSP), Department of Chemical Sciences, Federico II University, Via Cintia, 80126 Naples, Italy
| | - Vincenzo Busico
- Laboratory of Stereoselective Polymerizations (LSP), Department of Chemical Sciences, Federico II University, Via Cintia, 80126 Naples, Italy
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5
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De Rosa C, Ruiz de Ballesteros O, Di Girolamo R, Malafronte A, Auriemma F, Talarico G, Scoti M. The blocky structure of Ziegler–Natta “random” copolymers: myths and experimental evidence. Polym Chem 2020. [DOI: 10.1039/c9py01485c] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
When Ziegler–Natta catalysts synthesize “random” copolymers, they give multiblocks copolymers. Chains of butene–ethylene copolymers contain blocks with long and short butene sequences that crystallize in forms II and I of iPB, respectively.
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Affiliation(s)
- Claudio De Rosa
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Odda Ruiz de Ballesteros
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Finizia Auriemma
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Giovanni Talarico
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Miriam Scoti
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
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6
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Hornchaiya C, Anantawaraskul S, Soares JBP, Mehdiabadi S. Simultaneous Deconvolution of the Bivariate Molecular Weight and Chemical Composition Distribution of Ethylene/1‐Hexene Copolymers. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201800522] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chat Hornchaiya
- Center of Excellence on Petrochemical and Materials TechnologyDepartment of Chemical EngineeringFaculty of EngineeringKasetsart University Bangkok 10900 Thailand
- Center for Advanced Studies in Nanotechnology for ChemicalFood and Agricultural IndustriesKasetsart University Bangkok 10900 Thailand
| | - Siripon Anantawaraskul
- Center of Excellence on Petrochemical and Materials TechnologyDepartment of Chemical EngineeringFaculty of EngineeringKasetsart University Bangkok 10900 Thailand
- Center for Advanced Studies in Nanotechnology for ChemicalFood and Agricultural IndustriesKasetsart University Bangkok 10900 Thailand
| | - João B. P. Soares
- Department of Chemical and Materials EngineeringUniversity of Alberta Edmonton Alberta T6G 1H9 Canada
| | - Saeid Mehdiabadi
- Department of Chemical and Materials EngineeringUniversity of Alberta Edmonton Alberta T6G 1H9 Canada
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7
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Bahri-Laleh N, Hanifpour A, Mirmohammadi SA, Poater A, Nekoomanesh-Haghighi M, Talarico G, Cavallo L. Computational modeling of heterogeneous Ziegler-Natta catalysts for olefins polymerization. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.06.005] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Gao Y, Chen X, Zhang J, Chen J, Lohr TL, Marks TJ. Catalyst Nuclearity Effects on Stereo- and Regioinduction in Pyridylamidohafnium-Catalyzed Propylene and 1-Octene Polymerizations. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00181] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Yanshan Gao
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Xia Chen
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Jialong Zhang
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jiazhen Chen
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Tracy L. Lohr
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
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9
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Boggioni L, Cornelio M, Losio S, Razavi A, Tritto I. Propene Polymerization with C₁-Symmetric Fluorenyl-Metallocene Catalysts. Polymers (Basel) 2017; 9:polym9110581. [PMID: 30965886 PMCID: PMC6418994 DOI: 10.3390/polym9110581] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 10/30/2017] [Accepted: 10/31/2017] [Indexed: 11/20/2022] Open
Abstract
Propene homopolymers have been produced by employing three C1-symmetric metallocene molecules (1, 2 and 3), each having t-butyl substituent(s) on the Cp, on the fluorenyl or on both aromatic moieties activated with methylaluminoxane at different polymerization temperatures and monomer concentrations. Polymers’ microstructures determined by 13C NMR spectroscopy suggest that the otherwise dominant alternating mechanism governed by the chain migratory insertion is largely replaced by the competing site epimerization mechanism, as a direct result of the imposing steric bulk of the t-butyl substituent on one of the distal positions of the Cp moiety. This phenomenon is more pronounced with 3 when a second t-butyl is present in the same half-space of the molecule making the site epimerization mandatory. The lower activity of catalyst 3 with respect to catalyst 2 is also in line with the necessity for the polymer chain to back-skip (or the site to epimerize) to its original position before the subsequent monomer insertion. Chain end group analyses by 1H NMR spectroscopy have revealed that the formation of vinylidene end groups, either via β-H elimination or as a result of direct chain transfer to the monomer after an ordinary 1,2-insertion is the prevailing chain termination route. A correlation between the relative concentrations of vinylidene end groups of polypropene (PP) polymers produced with each catalyst and the corresponding polypropenes’ molar masses was found, indicating the lower the relative concentrations of vinylidene end groups, the higher the molar masses.
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Affiliation(s)
- Laura Boggioni
- CNR Istituto per lo Studio delle Macromolecole (ISMAC), Via E. Bassini, 15-20133 Milano, Italy.
| | - Massimiliano Cornelio
- CNR Istituto per lo Studio delle Macromolecole (ISMAC), Via E. Bassini, 15-20133 Milano, Italy.
| | - Simona Losio
- CNR Istituto per lo Studio delle Macromolecole (ISMAC), Via E. Bassini, 15-20133 Milano, Italy.
| | - Abbas Razavi
- Total Petrochemicals Research, Zone Industrielle C, B-7181 Feluy, Belgium.
| | - Incoronata Tritto
- CNR Istituto per lo Studio delle Macromolecole (ISMAC), Via E. Bassini, 15-20133 Milano, Italy.
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10
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Chen K, Mehdiabadi S, Liu B, Soares JBP. Analysis of Ethylene/1-Olefin Copolymers Made with Ziegler-Natta Catalysts by Deconvolution of Molecular Weight and Average Short Chain Branching Distributions. MACROMOL REACT ENG 2016. [DOI: 10.1002/mren.201500075] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Keran Chen
- Department of Chemical and Materials Engineering; University of Alberta; Edmonton Alberta T6G 1H9 Canada
- State Key Laboratory of Chemical Engineering; East China University of Science and Technology; Meilong Road 130 Shanghai 200237 China
| | - Saeid Mehdiabadi
- Department of Chemical and Materials Engineering; University of Alberta; Edmonton Alberta T6G 1H9 Canada
| | - Boping Liu
- State Key Laboratory of Chemical Engineering; East China University of Science and Technology; Meilong Road 130 Shanghai 200237 China
| | - João B. P. Soares
- Department of Chemical and Materials Engineering; University of Alberta; Edmonton Alberta T6G 1H9 Canada
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11
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Elias HG. Configuration. Macromolecules 2014. [DOI: 10.1002/9783527627219.ch4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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12
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Rishina LA, Lalayan SS, Gagieva SC, Tuskaev VA, Perepelitsyna EO, Kissin YV. Polymers of propylene and higher 1-alkenes produced with post-metallocene complexes containing a saligenin-type ligand. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.09.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Titanium (IV) and zirconium (IV) chloride complexes on the base of chiral tetraaryl-1,3-dioxolane-4,5-dimetanol ligands in the polymerization of ethylene: The promoting role of lithium and magnesium chloride. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.06.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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15
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Sita LR. Duality in Catalyst Design: The Synergistic Coupling of Steric and Stereoelectronic Control over Polyolefin Microstructure. Angew Chem Int Ed Engl 2011; 50:6963-5. [DOI: 10.1002/anie.201101913] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Indexed: 11/10/2022]
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16
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Sita LR. Dualität im Katalysatordesign: Kopplung von sterischer und stereoelektronischer Kontrolle der Polyolefin-Mikrostruktur. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201101913] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Press K, Cohen A, Goldberg I, Venditto V, Mazzeo M, Kol M. Salalen Titanium Complexes in the Highly Isospecific Polymerization of 1-Hexene and Propylene. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201007678] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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18
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Press K, Cohen A, Goldberg I, Venditto V, Mazzeo M, Kol M. Salalen Titanium Complexes in the Highly Isospecific Polymerization of 1-Hexene and Propylene. Angew Chem Int Ed Engl 2011; 50:3529-32. [DOI: 10.1002/anie.201007678] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Indexed: 11/06/2022]
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19
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Rishina LA, Galashina NM, Gagieva SC, Tuskaev VA, Kissin YV. Polymerization of olefins catalyzed by a dichloride complex of titanium with a dioxolane dicarbonate ligand: The promoting effect of LiCl and MgCl2. POLYMER SCIENCE SERIES B 2011. [DOI: 10.1134/s1560090411020072] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Macko T, Cutillo F, Busico V, Brüll R. Separation of Poly(propylene) Samples According to Tacticity Using a Hypercarb Column. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/masy.201000050] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Kissin Y, Rishina L, Galashina N, Gagieva S, Tuskaev V. Single-center vs. multi-center post-metallocene catalysts for propylene polymerization. Eur Polym J 2009. [DOI: 10.1016/j.eurpolymj.2009.06.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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Chemical structure–stereospecificity relationship of internal donor in heterogeneous Ziegler–Natta catalyst for propylene polymerization by DFT and MM calculations. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.05.030] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Theoretical investigation on the model active site for isotactic polypropylene in heterogeneous Ziegler–Natta catalyst: A density functional study. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2007.05.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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24
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Zecchina A, Groppo E, Bordiga S. Selective catalysis and nanoscience: an inseparable pair. Chemistry 2007; 13:2440-60. [PMID: 17294491 DOI: 10.1002/chem.200600678] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Selective catalysts can be considered as nanomachines designed to perform the synthesis of molecules with high reaction activity and high selectivity. These properties arise from a precise control of the structure of the active sites, of the three-dimensional environment and of their relationship. In both homogeneous and heterogeneous catalysts the active site three-dimensional environment ensemble is always a complex structure resembling the tuneable structure of enzymes, which are the most efficient catalysts optimized by nature over billions of years. To illustrate this concept the structure of a few homogeneous and heterogeneous catalysts for alkenes hydrogenation and for olefin polymerization are chosen and discussed as examples.
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Affiliation(s)
- Adriano Zecchina
- Department of Inorganic, Physical and Materials Chemistry, NIS (Nanostructured Interfaces and Surfaces) Centre of Excellence and INSTM Centro di Riferimento, University of Torino, Via P. Giuria 7, 10125 Turin, Italy.
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25
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van der Burgt FPTJ, Rastogi S, Chadwick JC, Rieger B. INFLUENCE OF THERMAL TREATMENTS ON THE POLYMORPHISM IN STEREOIRREGULAR ISOTACTIC POLYPROPYLENE: EFFECT OF STEREO-DEFECT DISTRIBUTION. J MACROMOL SCI B 2007. [DOI: 10.1081/mb-120013086] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Frank P. T. J. van der Burgt
- a Dutch Polymer Institute , Eindhoven University of Technology , P.O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - Sanjay Rastogi
- a Dutch Polymer Institute , Eindhoven University of Technology , P.O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - John C. Chadwick
- a Dutch Polymer Institute , Eindhoven University of Technology , P.O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - Bernhard Rieger
- b University of Ulm , Albert-Einstein-Aller 11, Ulm, 89081, Germany
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26
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Chapter 6 Active Centers in Transition Metal Catalysts and Mechanisms of Polymerization Reactions. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/s0167-2991(07)00006-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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27
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Gao M, Liu H, Wang J, Li C, Ma J, Wei G. Novel MgCl2-supported catalyst containing diol dibenzoate donor for propylene polymerization. POLYMER 2004. [DOI: 10.1016/j.polymer.2004.01.036] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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Alamo RG. The role of defect microstructure in the crystallization behavior of metallocene and MgCl2-supported Ziegler-Natta isotactic poly(propylenes). POLIMEROS 2003. [DOI: 10.1590/s0104-14282003000400012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Rufina G. Alamo
- Florida Agricultural and Mechanical University; Florida State University, USA
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29
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Zhong C, Gao M, Mao B. Effect of high polymerization temperature on the microstructure of isotactic polypropylene prepared using heterogeneous ticl4/mgcl2 catalysts. J Appl Polym Sci 2003. [DOI: 10.1002/app.13104] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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30
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Alamo RG, Blanco JA, Agarwal PK, Randall JC. Crystallization Rates of Matched Fractions of MgCl2-Supported Ziegler Natta and Metallocene Isotactic Poly(Propylene)s. 1. The Role of Chain Microstructure. Macromolecules 2003. [DOI: 10.1021/ma021549g] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Rufina G. Alamo
- Department of Chemical Engineering, Florida Agricultural and Mechanical University and Florida State University, Tallahassee, Florida 32310-6046
| | - Jose A. Blanco
- Department of Chemical Engineering, Florida Agricultural and Mechanical University and Florida State University, Tallahassee, Florida 32310-6046
| | - Pawan K. Agarwal
- Exxon-Mobil Co., Baytown Polymers Center, Baytown, Texas 77522-5200
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31
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Resconi L, Cavallo L, Fait A, Piemontesi F. Selectivity in propene polymerization with metallocene catalysts. Chem Rev 2000; 100:1253-346. [PMID: 11749266 DOI: 10.1021/cr9804691] [Citation(s) in RCA: 1073] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L Resconi
- Montell Polyolefins, Centro Ricerche G. Natta, P.le G. Donegani 12, 44100 Ferrara, Italy, and Dipartimento di Chimica, Università di Napoli "Federico II", Via Mezzocannone 4, 80134 Napoli, Italy
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32
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On the mechanisms of growing-chain-end isomerization and transfer reactions in propylene polymerization with isospecific, C2-symmetric zirconocene catalysts. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s1381-1169(99)00101-6] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Mori H, Yamahiro M, Prokhorov VV, Nitta KH, Terano M. High-Pressure Stopped-Flow Polymerization for Polypropene-block-poly(ethene-co-propene) Having Controlled Molecular Weight: Synthesis and Characterization. Macromolecules 1999. [DOI: 10.1021/ma981862b] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hideharu Mori
- School of Materials Science and Center for New Materials, Japan Advanced Institute of Science and Technology, Asahidai 1−1, Tatsunokuchi, Ishikawa 923-1292, Japan
| | - Mikio Yamahiro
- School of Materials Science and Center for New Materials, Japan Advanced Institute of Science and Technology, Asahidai 1−1, Tatsunokuchi, Ishikawa 923-1292, Japan
| | - Valery V. Prokhorov
- School of Materials Science and Center for New Materials, Japan Advanced Institute of Science and Technology, Asahidai 1−1, Tatsunokuchi, Ishikawa 923-1292, Japan
| | - Koh-hei Nitta
- School of Materials Science and Center for New Materials, Japan Advanced Institute of Science and Technology, Asahidai 1−1, Tatsunokuchi, Ishikawa 923-1292, Japan
| | - Minoru Terano
- School of Materials Science and Center for New Materials, Japan Advanced Institute of Science and Technology, Asahidai 1−1, Tatsunokuchi, Ishikawa 923-1292, Japan
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Veghini D, Henling LM, Burkhardt TJ, Bercaw JE. Mechanisms of Stereocontrol for Doubly Silylene-Bridged Cs- and C1-Symmetric Zirconocene Catalysts for Propylene Polymerization. Synthesis and Molecular Structure of Li2[(1,2-Me2Si)2{C5H2-4-(1R,2S,5R-menthyl)}{C5H-3,5-(CHMe2)2)}]·3THF and [(1,2-Me2Si)2{η5-C5H2-4-(1R,2S,5R-menthyl)}{η5-C5H-3,5-(CHMe2)2}]ZrCl2. J Am Chem Soc 1998. [DOI: 10.1021/ja982868j] [Citation(s) in RCA: 110] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dario Veghini
- Contribution from the Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, and Baytown Polymer Center, Exxon Chemical Company, Baytown, Texas 77520-2101
| | - Lawrence M. Henling
- Contribution from the Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, and Baytown Polymer Center, Exxon Chemical Company, Baytown, Texas 77520-2101
| | - Terry J. Burkhardt
- Contribution from the Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, and Baytown Polymer Center, Exxon Chemical Company, Baytown, Texas 77520-2101
| | - John E. Bercaw
- Contribution from the Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, and Baytown Polymer Center, Exxon Chemical Company, Baytown, Texas 77520-2101
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