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Arianpour F, Jahangiri M, Abedi S, Vafaee F, Yousif QA, Salavati-Niasari: M. In-situ polymerization of silica/polyethylene using bisupported Ziegler-Natta catalyst of nanosilica/BOM/TiCl4/TEAL: Study of thermo-mechanical properties system. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Effect of Immobilization Methods on the Production of Polyethylene-cellulose Biocomposites via Ethylene Polymerization with Metallocene/MAO Catalyst. BULLETIN OF CHEMICAL REACTION ENGINEERING & CATALYSIS 2020. [DOI: 10.9767/bcrec.15.3.8735.752-764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Polyethylene-cellulose biocomposites were synthesized here via the ethylene polymerization with metallocene as a catalyst along with methylaluminoxane (MAO) as a cocatalyst. The immobilization method in which the catalyst or cocatalyst is fixed onto the catalytic filler (cellulose) can be classified into 3 methods according to the active components fixed onto the filler surface: 1) only metallocene catalyst (Cellulose/Zr), 2) only MAO cocatalyst (Cellulose/MAO) and 3) mixture of metallocene and MAO (Cellulose/(Zr+MAO)). It was found that the different immobilization methods or different fillers altered the properties of the obtained composites and also the catalytic activity of the polymerization systems. It was found that Cellulose/MAO provided the highest catalytic activity among all fillers due to a crown-alumoxane complex, which caused the heterogeneous system with this filler behaved similarly to the homogeneous system. The different fillers also produced the biocomposites with some different properties such as crystallinity which Cellulose/Zr provided the highest crystallinity compared with other fillers as observed by a thermal gravimetric analysis-differential scanning calorimetry (TGA-DSC). Nevertheless, the main crystal structure indicated to the typical polyethylene was still observed for all obtained biocomposites with different fillers as observed by an X-ray diffractometer (XRD). Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
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Käselau S, Scheel S, Petersson L, Ho C, Luinstra GA. Isotactic polypropylene metal oxide and silica nanocomposites by a two‐step process comprising in situ olefin polymerization and melt compounding. POLYM INT 2019. [DOI: 10.1002/pi.5785] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Sven Käselau
- Institute for Technical and Macromolecular ChemistryUniversity of Hamburg Hamburg Germany
| | - Saskia Scheel
- ABB Schweiz, AG Corporate Research Baden‐Dättwil Switzerland
| | | | - Chau‐Hon Ho
- ABB Schweiz, AG Corporate Research Baden‐Dättwil Switzerland
| | - Gerrit A Luinstra
- Institute for Technical and Macromolecular ChemistryUniversity of Hamburg Hamburg Germany
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Comparán-Padilla VE, Pérez-Berúmen CM, Cadenas-Pliego G, Rodríguez-Hernández MT, Collins S, Pérez-Camacho O. Evaluation of catalyst leaching in silica supported zirconocene alumino hydride catalysts. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.22773] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | | | | | - Scott Collins
- Department of Chemistry; University of Victoria; 3800 Finnerty Road Victoria, BC, V8P 5C2 Canada
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Moreno YP, Cardoso MB, Moncada EA, dos Santos JHZ. Correlating the Morphological Properties and Structural Organization of Monodisperse Spherical Silica Nanoparticles Grown on a Commercial Silica Surface. Chemphyschem 2015; 16:2981-94. [DOI: 10.1002/cphc.201500216] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Indexed: 01/08/2023]
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Lee SY, Choi KY. Kinetics and Growth of Polyethylene Nanofibrils over Metallocene Catalyst Supported on Flat Silica and Spherical Nano-Silica Particles. MACROMOL REACT ENG 2014. [DOI: 10.1002/mren.201400018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sang Yool Lee
- Department of Chemical and Biomolecular; University of Maryland; College Park Maryland 20853 USA
| | - Kyu Yong Choi
- Department of Chemical and Biomolecular; University of Maryland; College Park Maryland 20853 USA
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Meisterová L, Zubov A, Smolná K, Štěpánek F, Kosek J. X-Ray Tomography Imaging of Porous Polyolefin Particles in an Electron Microscope. MACROMOL REACT ENG 2013. [DOI: 10.1002/mren.201300002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zapata PA, Palza H, Cruz LS, Lieberwirth I, Catalina F, Corrales T, Rabagliati FM. Polyethylene and poly(ethylene-co-1-octadecene) composites with TiO2 based nanoparticles by metallocenic “in situ” polymerization. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.03.048] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ruff M, Lang RW, Paulik C. Controlling Polyolefin Properties by In-Reactor Blending: 3. Mechanical Properties. MACROMOL REACT ENG 2013. [DOI: 10.1002/mren.201200077] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Bento A, Lourenço JP, Fernandes A, Cerrada ML, Rosário Ribeiro M. Functionalization of Mesoporous MCM-41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites. ChemCatChem 2012. [DOI: 10.1002/cctc.201200639] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Stürzel M, Kempe F, Thomann Y, Mark S, Enders M, Mülhaupt R. Novel Graphene UHMWPE Nanocomposites Prepared by Polymerization Filling Using Single-Site Catalysts Supported on Functionalized Graphene Nanosheet Dispersions. Macromolecules 2012. [DOI: 10.1021/ma301376q] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Markus Stürzel
- Freiburg Materials Research
Center (FMF) and Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, D-79098
Freiburg, Germany
| | - Fabian Kempe
- Freiburg Materials Research
Center (FMF) and Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, D-79098
Freiburg, Germany
| | - Yi Thomann
- Freiburg Materials Research
Center (FMF) and Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, D-79098
Freiburg, Germany
| | - Stefan Mark
- Anorganisch-Chemisches
Institut, University of Heidelberg, Im
Neuenheimer Feld 270,
D-69120 Heidelberg, Germany
| | - Markus Enders
- Anorganisch-Chemisches
Institut, University of Heidelberg, Im
Neuenheimer Feld 270,
D-69120 Heidelberg, Germany
| | - Rolf Mülhaupt
- Freiburg Materials Research
Center (FMF) and Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, D-79098
Freiburg, Germany
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Ruff M, Paulik C. Controlling Polyolefin Properties by In-Reactor Blending, 1-Polymerization Process, Precise Kinetics, and Molecular Properties of UHMW-PE Polymers. MACROMOL REACT ENG 2012. [DOI: 10.1002/mren.201200019] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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