Copolymerization of ethylene with norbornene by using metallocene/TIBA/B(C6F5)3 system [PDF]
Cyclic olefin copolymer is a type of high-performance polyolefin material, which is prepared by using a single-site catalyst in solution polymerization. The common activator of this system is alkyl aluminoxane or organic boron/aluminum system.
Wei Wang +7 more
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Synthesis of Metallocene Catalyst for Terpolymerization of Ethylene, Propylene and Diene [PDF]
The bis(indenyl) zirconium dichloride catalyst was synthesized by a modified method at room temperature. Terpolymerization of ethylene, propylene and diene monomers were carried out using this metallocene catalyst under different conditions of different ...
S.M.M. Mortazavi +4 more
doaj +1 more source
Modeling of metallocene catalyzed propylene polymerization in fluidized bed reactors [PDF]
A study was performed to improve the model for metallocene catalyzed polyolefin polymerization in fluidized bed reactor by adapting multi-scale modeling approach.
Law Chew-Sang, Hussain Mohd Azlan
doaj +1 more source
Immobilization of Metallocene Catalyst in Nano-Fumed Silica for Production of Polyethylene in a Disentangled State [PDF]
Hypothesis: Production of polyethylene (PE) of a relatively high molecular weight with improved properties and acceptable processability has been allocated to many research efforts.
Hasan Keshavarz Mirza-Mohamadi +3 more
doaj +1 more source
Polyethylene-cellulose biocomposites were synthesized here via the ethylene polymerization with metallocene as a catalyst along with methylaluminoxane (MAO) as a cocatalyst.
Praonapa Tumawong +2 more
doaj +1 more source
Synthesis of (Ind)2ZrCl2 Catalyst for Copolymerization of Ethylene and Propylene: Parameters Effect on Productivity [PDF]
Bis(indenyl)zirconium dichloride as a catalyst was synthesized using a modified method at the room temperature. Polymerization of ethylene and copolymerization of ethylene and propylene were carried out by this metallocene catalyst. Ethylene propylene (P/
S. Ahmadjo +4 more
doaj +1 more source
A Brief Review of the Cocatalysts Types and their Performance in (Co)Polymerization Processes of Olefins: From Synthesis to Industrial Application [PDF]
In the past, most researchers believed that cocatalyst is a passive component that only has the task of "removing impurities" and "alkylating" the active centers of catalyst at the beginning of the polymerization and does not play a specific role in the ...
maryam masoori +5 more
doaj +1 more source
The effect of the amido substituent on polymer molecular weight in propene homopolymerisation by titanium cyclopentadienyl-amide catalysts [PDF]
In the homopolymerisation of propene by the cyclopentadienyl-amide titanium catalyst systems [η5,η1-C5H4(CH2)2NR]TiCl2/MAO and [η5,η1-C5H4(CH2)2NR]Ti(CH2Ph)2/B(C6F5)3 (R = tBu, iPr, Me), the catalyst with the smallest substituent (Me) on the amido moiety
Hessen, Bart, +2 more
core +1 more source
We have investigated the effects of temperature, diameter and metal catalyst type on the growth of inner nanotubes inside metallocene-filled single-walled carbon nanotubes (SWCNTs).
Marianna V. Kharlamova +1 more
doaj +1 more source
The influence of the oxygen donor capacity of polystearylmethacrylate over polyethylene bulk density when using modified methylaluminoxane as co-catalyst [PDF]
In this work, the interaction between a polystearylmethacrylate (Mn = 8,900 g mol-1, Xn = 26, Ð = 1.1) and modified methylaluminoxane 12 (MMAO-12) co-catalyst is studied using different spectroscopic methods.
Odilia Pérez-Camacho +1 more
doaj +1 more source

