Olefin Polymerization
Bimetallic Olefin Polymerization Catalysis: Mechanisms and Applications of Proximal Effects
... post-metallocene polymerization catalysis and these results represent a bimetallic strategy for achieving this ...α-olefin polymerization (Appendix B). α- Olefin/diene copolymerizations ...
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A Convenient Synthesis for Alkoxy Ethers as Olefin Polymerization Agent
... A Novel cost effective, economical and commercially viable synthetic process was reported for manufacturing of alkoxy ethers, useful as olefin polymerization agent via alkylation of carbonyl compounds at ...
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Nuclearity and π-π Interaction Effects on Olefin Polymerization and Coordination Chemistry
... Without the influence of a great many teachers I would not be writing these acknowledgements on my PhD! thesis, nor be the person I am now, and so any acknowledgements must start with those people. I have had the immense ...
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Modelling the catalyst fragmentation pattern in relation to molecular properties and particle overheating in olefin polymerization
... differences technique. Accordingly, the computational domain is divided into a number of 2-D finite elements in the r and θ coordinates (Figure 2a). The initial catalyst particle was positioned in the center of the ...
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Carbon Carbon Bond Forming Reactions from Bis(carbene) Platinum(II) Complexes and Olefin Polymerization and Oligomerization using Group 4 Post Metallocene Complexes
... α-olefin polymerization has been one of the most widely studied catalytic organometallic ...site olefin polymerization catalysts that span the transition metal series and allow access to ...
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Investigation of the Role of Hydrides in Zirconocene Catalyzed Olefin Polymerization
... homogeneous olefin polymerization has seen renewed industrial interest in recent years due to advances in processing of these traditionally hard to work with products as well as the development of new ...
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Synthesis and Application of Bis[1,2-(4-aryl-2-alkyl-1H- inden-1-yl)]Ethane as an Efficient`Ligand for Preparation of Olefin Polymerization Catalysts
... Metallocene family is an important class of organometallic compounds. Metallocenes generally consist of a central metal which is bonded to two cyclopentadienyl anions. [1,2] This class of organometallic compounds have ...
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Active site nature of magnesium dichloride-supported titanocene catalysts in olefin polymerization
... Ziegler-Natta catalysts are multi-site catalysts, whose active sites are non-uniform in terms of structures and catalytic performances. Nonetheless, the majority of active sites in Ziegler-Natta catalysts are regarded as ...
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The effect of ligand array on stereocontrol and molecular weight in metallocene-catalyzed alpha-olefin polymerization and (PNP)CrPh3 complexes as well-defined ethylene trimerization catalysts
... Finally, I want to acknowledge Paul Elowe, a new first year in the Bercaw Group who I have had the good fortune of training in lab so that he can continue work on the chromium project.. [r] ...
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Organometallic Reaction Mechanisms: Olefin Polymerization Catalysis and C H Bond Activation by Early Transition Metal Bisphenolate Complexes and Protonolysis of Bipyrimidine Platinum Methyl Complexes
... The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they [r] ...
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“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] ...
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Chemistry of group(IV) phosphinimide complexes.
... Based on the electronic and the steric similarities between the phosphinimide and cyclopentadienyl ligands, our laboratory successfully demonstrated that phosphinimide ligands could be employed to mimic the chemical ...
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Ruthenium olefin metathesis catalysts containing fluoride
... N, N’-bis[2,4,6-(trimethyl)phenyl]imidazolidin-2-ylidene) decreases in the order Cl > Br > I, suggesting a possibly higher efficiency for the fluoride analogues. 9 Computa- tional studies on the formation of ruthe- ...
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Synthesis of some monocyclic and bicyclic polyhydroxy nitrogen heterocyclic compounds (Azasugars)
... olefin was subjected to Sharpless asymmetric dihydroxylation (SAD) conditions with AD-mix-α for longer hours utterly failed to get the dihydroxy compound and considerable amount of starting material 30 was ...
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Synthesis and Characterization of Graphene-Polymer Nanocomposites via Reversible Addition-Fragmentation Chain-Transfer Polymerization
... radical polymerization is a powerful tool for the surface functionalization of nanomaterials such as graphene via the “grafting from” ...(RAFT) polymerization has several attractive advantages as a living ...
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Polymerization-Induced Self-Assembly of All-Acrylic Diblock Copolymers via RAFT Dispersion Polymerization in Alkanes
... dispersion polymerization has provided a facile route to well-de fi ned, colloidally stable latexes in non-polar solvents via addition of a suitable steric stabilizer usually an adsorbed homopolymer, block ...
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Polymerization of propylene in a minireactor: Effect of polymerization conditions on particle morphology
... and polymerization kinet- ics, is to use well-defined reactor conditions with off- line analysis of the product ...the polymerization similar to that performed in industrial conditions ...transfer, ...
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Nonlinear Polymeric Architectures via Olefin Metathesis
... hyperbranched polymerization is reaction time. The duration of the polymerization reaction is particularly important in the case of step-growth, since high monomer conversion is crucial for progressing the ...
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Preparation of Microcapsules Containing Water and Effect of Water Content on Expansion Behavior
... DOI: 10.4236/jeas.2017.74010 129 Journal of Encapsulation and Adsorption Sciences namely, the first was the microencapsulation of water with suspension polyme- rization and the second was the microencapsulation of water ...
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Investigation of the Electro Mechanical Behavior of Hybrid Polyaniline/Graphene Nanocomposites Fabricated by Dynamic Interfacial Inverse Emulsion Polymerization
... Aniline monomer (Aldrich, USA) was used after purification. Dodecyl benzene sulfonic acid (DBSA) (Zohar, Israel) was used as received without further purification. Chloroform (Bio Lab LTD., Israel) was used as a sol- ...
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