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[PDF] Top 20 Titanasilsesquioxane Alkylaluminum Catalyst System for Ethylene Polymerization

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Titanasilsesquioxane Alkylaluminum Catalyst System for Ethylene Polymerization

Titanasilsesquioxane Alkylaluminum Catalyst System for Ethylene Polymerization

... The crystalline nature of these polymers was estimated by integration of the X-ray diffraction peaks observed. A high degree of crystallinity was indicated in all cases, which was in the range of 69% - 76%. The ... See full document

14

Kinetics of ethylene polymerization over titanium-magnesium catalysts: The reasons for the observed second order of polymerization rate with respect to ethylene

Kinetics of ethylene polymerization over titanium-magnesium catalysts: The reasons for the observed second order of polymerization rate with respect to ethylene

... spectrometer. Ethylene slurry polymerization runs were performed in a ...with catalyst concentration ...a catalyst in heptane was placed in the ...the catalyst. During ... See full document

12

Investigation of Alkoxysilanes in the Presence of Hydrogen with Ziegler Natta Catalysts in Ethylene Polymerization

Investigation of Alkoxysilanes in the Presence of Hydrogen with Ziegler Natta Catalysts in Ethylene Polymerization

... olefin polymerization [2, ...the system without hydrogen ...for polymerization. This caused the reduction of opportunity of ethylene monomer to the catalyst active sites and favoured ... See full document

10

Polymerization of methyl acrylate and as comonomer with ethylene using single-site catalysts

Polymerization of methyl acrylate and as comonomer with ethylene using single-site catalysts

... of catalyst structure, the isotacticity is governed by a chain-end control ...propylene polymerization catalysts that operate via a secondary enchainment ... See full document

89

Compression, supramolecular organization and free radical polymerization of ethylene gas

Compression, supramolecular organization and free radical polymerization of ethylene gas

... radical polymerization, we applied Kargin and Kabanov theory of polymerization of organized monomer to interpret high pressure free radical polymerization of ...whole system have decisive ... See full document

19

VLDPE Synthesis by Radical Ethylene Polymerization in Tubular Reactors–Negative Factor or Unrealized Opportunities

VLDPE Synthesis by Radical Ethylene Polymerization in Tubular Reactors–Negative Factor or Unrealized Opportunities

... The paper [5] presents company achievements in the development of this discipline driven by use of various catalytic systems and high alpha olefins. Control of polymer branching, crystal structure, density and heat ... See full document

6

Synthesis of high molecular weight polyethylene using FI catalyst

Synthesis of high molecular weight polyethylene using FI catalyst

... the polymerization procedure explained already [19]. Polymerization of ethylene at low pressure was carried out in a three-necked glass reactor, while higher pressure polymerization was ... See full document

8

Polyethylene/Bacterial Cellulose Biocomposite Synthesized via In Situ Polymerization with Zirconocene/MMAO Catalyst

Polyethylene/Bacterial Cellulose Biocomposite Synthesized via In Situ Polymerization with Zirconocene/MMAO Catalyst

... situ polymerization of ethylene along with BC filler can be carried out by supporting cocatalyst (MMAO) onto BC, then bringing it into the polymerization system along with the metallocene ... See full document

14

The Polymerization Effect on Synthesis and Visible Light Photocatalytic Properties of Low Temperature β BiNbO4 Using Nb Citrate Precursor

The Polymerization Effect on Synthesis and Visible Light Photocatalytic Properties of Low Temperature β BiNbO4 Using Nb Citrate Precursor

... was first dissolved in Nb-CA. Then the solution was kept stirring at 60 °C, and ammonia was added to adjust the pH value to 7–8. Finally, a stable solution was ob- tained. The above is the citrate method process; for the ... See full document

5

Synthesis and Characterization of PDMS/PAAc Sequential IPNs

Synthesis and Characterization of PDMS/PAAc Sequential IPNs

... precipitation polymerizations of AAc were carried out in 5-mm diameter glass ampoules. The prescribed amount of the initiator and monomer were dissolved in the solvent, and the solution was then charged into the glass ... See full document

10

Dissymmetric dinuclear transition metal complexes as dual site catalysts for the polymerization of ethylene

Dissymmetric dinuclear transition metal complexes as dual site catalysts for the polymerization of ethylene

... the silylene bridged zirconocene complex 1 in 100 mL toluene. The mixture was stirred and then a few drops of a solution of Karstedt’s catalyst, platinum(0)- 1,3-divinyl-1,1,3,3-tetramethyldisiloxane (0.1 M in ... See full document

10

Observation of Bimodal LLDPE/TiO<sub>2</sub> Nanocomposites Produced by in Situ Polymerization with Zirconocene/MMAO Catalysts via Ga Modification on TiO<sub>2</sub> Nanofiller

Observation of Bimodal LLDPE/TiO<sub>2</sub> Nanocomposites Produced by in Situ Polymerization with Zirconocene/MMAO Catalysts via Ga Modification on TiO<sub>2</sub> Nanofiller

... situ polymerization [5-7]. Due to the direct synthesis via polymerization along with the presence of fillers, the in situ polymerization is perhaps considered to be the most promising technique to ... See full document

10

Catalyst system comprising a first catalyst system tethered to a supported catalyst

Catalyst system comprising a first catalyst system tethered to a supported catalyst

... new catalyst formats which comprise a supportedcatalyst tethered to a second and different catalyst by a suitable tethering ...preferred system comprises a heterogeneous supported metal ... See full document

20

In pursuit of RAFT functional polyethylene : exploration of a novel class of Sn RAFT agents and the preparation and application of RAFT functional polyethylene like poly(ω pentadecalactone)

In pursuit of RAFT functional polyethylene : exploration of a novel class of Sn RAFT agents and the preparation and application of RAFT functional polyethylene like poly(ω pentadecalactone)

... resolution polymerization of racemic 4-methyl-ε-caprolactone in order to prepare block copolymers with a high enantiomeric excess in the poly(ester) ...the catalyst maintained multivalent ligands such as ... See full document

190

Di­chloro­[N,N′ bis­(2,6 diiso­propyl­phenyl) 1,2 ethanedi­imine N,N′]­palladium

Di­chloro­[N,N′ bis­(2,6 diiso­propyl­phenyl) 1,2 ethanedi­imine N,N′]­palladium

... α -Diimines, RN═CR′—CR′═NR, have been widely used as ligands in transition metal complexes (van Koten & Vrieze, 1982; Vonzelewsky et al. , 1994; Paw et al. , 1998, Kaes et al. , 2000; Farrell & Vlcek, 2000; van ... See full document

11

Kinetics of free radical polymerization of methylacrylate initiated by potassium peroxydisulfate and cetylpyridinium chloride system

Kinetics of free radical polymerization of methylacrylate initiated by potassium peroxydisulfate and cetylpyridinium chloride system

... transfer catalyst in ethyl acetate/water biphase system at 60 ±1ºC under nitrogen ...of polymerization (Rp) was observed with increasing concentration of monomer, initiator and ...and catalyst ... See full document

5

Recent Advances on Surface Modification of Halloysite Nanotubes for Multifunctional Applications

Recent Advances on Surface Modification of Halloysite Nanotubes for Multifunctional Applications

... Surface modification of natural halloysite clay nanotubes with 418.. Application as catalyst supports in the atom transfer radical polymerization of methyl 419[r] ... See full document

10

“Frustrated” Lewis Pairs: Applications in olefin polymerization and small molecule activation

“Frustrated” Lewis Pairs: Applications in olefin polymerization and small molecule activation

... Investigations of Lewis basic phosphine additives to the polymerization of ethylene using CpTiMe(NP'Bu3)/B(C6F5)3 systems resulted in the observation that the addition of sterically bu[r] ... See full document

156

Preparation and characterization of a ruthenium(II) catalyst for radical polymerization of olefins.

Preparation and characterization of a ruthenium(II) catalyst for radical polymerization of olefins.

... radical polymerization is triggered by one electron oxidation of the metal complex, it is reasonable to suggest the slow polymer conversion rates are likely a result of the high Ru(III/II) redox potential for ... See full document

92

Mathematical modeling of the 
		polymerization of butadiene on neodymium containing catalyst systems

Mathematical modeling of the polymerization of butadiene on neodymium containing catalyst systems

... The initiation of radical polymerization consists in the generation of free radicals in the reaction systems, which are able to initiate reaction chains. This stage occurs due to the thermal decomposition into two ... See full document

6

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