Results 81 to 90 of about 2,112 (213)
Advances in Materials Science and Engineering, 2018 The influence of multiwalled carbon nanotubes (MWCNTs) on the properties of polyethylene prepared by in situ polymerization using metallocene catalyst (Cp2ZrCl2) in combination with methylaluminoxane has been studied.
Mamdouh A. Al-Harthi +1 more
doaj +1 more source
Propylene Polymerization Catalyzed by Metallocene/Methylaluminoxane Systems on Rice Husk Ash
Molecules, 2019 Silica generated from agricultural waste is more cost effective and environmentally friendly than silica from traditional commercial processes. In this study, spherical silica particles with a diameter of around 120 nm were fabricated from rice husk ash (
Kuo-Tseng Li, Cheng-Ni Yang
doaj +1 more source
A cooperative model for metallocene catalyst activation by methylaluminoxane
Dalton TransactionsDFT study of rac-Me 2 Si(η 5 -C 9 H 6 ) 2 ZrMe 2 activation by methylaluminoxane (MAO) show ...
Scott Collins, Mikko Linnolahti
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Polymer Engineering &Science, Volume 66, Issue 5, Page 3100-3141, May 2026.This review integrates the molecular fundamentals, key challenges, and mitigation strategies in polyolefin 3D printing, focusing on shrinkage, warpage, and adhesion control. It highlights material design approaches using recycled polyolefins and functional fillers to improve printability, mechanical properties, and sustainability in additive ...
Malik Hassan +5 more
wiley +1 more source
A study of copolymerization of 1-hexene with 2,5-norbornadiene using metallocene catalysts
, 2004 Copolymerization of 1-hexene with a symmetrical diene, namely 2,5-norbornadiene was studied using four different metallocene catalysts. Copolymerization was found to occur exclusively through one of the two equally reactive endocyclic double bonds with ...
Sivaram, Swaminathan +1 more
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Asymmetric metallocene catalysts: design of ultrahigh molecular weight polypropylene plastomers
, 2006 This study focuses on the synthesis of novel asymmetric ansa-metallocene catalysts of the indenyl-fluorenyl type, designed to tailor the microstructures of the resulting polypropylenes so that the portfolio of the material properties is extended toward ...
Cobzaru, Cecilia
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Complex Macromolecular Architectures Utilizing Metallocene Catalysts
Macromolecules, 2003 Graft copolymers having poly(methyl methacrylate), PMMA, backbone and polystyrene, PS, polyisoprene, PI, poly(ethylene oxide), PEO, poly(2-methyl-1,3-pentadiene), P2MP, and PS-b-PI branches were prepared using the macromonomer methodology and high-vacuum techniques. The methacrylic macromonomers, mMM, were synthesized by anionic polymerization, whereas
Batis, C. +3 more
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Solution isomerization of commercial C2-symmetric metallocene catalysts [PDF]
, 2006 Thesis (MSc (Chemistry and Polymer Science))--University of Stellenbosch, 2006.This study concerns the investigation of the isomerization of different metallocene catalysts in solution, and the effects thereof on the microstructure of polypropylenes ...
Soltan, Omar
core
Polymerization of Allyltrimethylisilane and 4-Methyl-1-Pentene by Using Metallocene Catalysts. [PDF]
Polymers (Basel), 2023 Wang W, Ren M, Hou L, Qu S, Li X, Guo Z.
europepmc +1 more source
Metallocene Based Polyolefin Nanocomposites
, 2014 One of the most efficient and versatile ways to synthesize polyolefin nanocomposites is the in-situ polymerization of olefins in the presence of nano particles by metallocene catalysts.
Walter Kaminsky
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