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Showing 1 to 9 of 9 for “"1-pentene"”.
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Morphology, Crystallization and Melting Behaviors of Random Copolymers of Ethylene with 1-Butene, 1-Pentene and 1-Hexene
… studied - ethylene/1-butene, ethylene/1-pentene and ethylene/1-hexene - were found to be identical to each other, suggesting that the crystallization process examined was independent of branch type for the ethyl, propyl and butyl branches examined. Since the lengthy butyl branch (in the …
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Highly Efficient Catalysts for the Dimerization of α-Olefins
… resulted in the formation of mainly 4-methyl-1-pentene instead of 2-methyl-1-pentene (without additive). Because of the moderate activities of 95–215 10e3 g(dimer)/mol h of the vanadium catalysts, the optimization of the catalytic activity was studied with a phosphine chelated nickel system in …
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Zeolite deactivation during hydrocarbon reactions: characterisation of coke precursors and acidity, product distribution
… during catalytic conversion of hydrocarbons – 1-pentene, n-heptane and ethylbenzene – as representatives of olefins, paraffins and aromatics respectively, at different reaction temperatures, time-on-streams and composition. Three novel techniques, coke classification, thermogravimetric method for …
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The application of novel multinuclear catalysts derived from dendrimeric ligands in the polymerization and oligomerization of unsaturated hydrocarbons
… of α-olefins such as ethylene and 1-pentene, using aluminium alkyls such as EtAlCl2 and modified methylaluminoxane (MMAO) as activators. All the dendrimeric catalysts evaluated are active in the oligomerization reactions. From the oligomerization results it was observed that there is …
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The synthesis and reactivity of some hydrocarbyl complexes of iron and ruthenium
… and NaI has been shown to give high yields of 1-pentene; the relevance of this reaction sequence is discussed. The synthesis and properties of the known ruthenium ethyl complex [CpRu(CO)₂(CH₂CH₃)] are compared with [CpRu(CO)₂]₂[μ-(CH₂CH₂)]. The synthesis, characterization and properties of the …
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Role of adsorption in catalysis: applications of NMR relaxometry
… with the alumina (94 kJ mol-1) while 1-pentene presented a weaker interaction (46 kJ mol-1) on θ-Al2O3. Desorption energies obtained from TPD ranged 85 – 130 kJ mol-1, irrespective of the adsorbate. Reactivity of the aluminas was captured with TPD, TEOM and NMR relaxometry. Interaction …
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Investigations of the Processing-Structure-Property Relationships of Selected Semicrystalline Polymers
… The first polymer was isotactic poly(4-methyl-1-pentene) (PMP), and the second was polyoxymethylene (POM). Three PMP resins were studied, which differed in weight average molecular weight. Three POM resins were also investigated where two of resins were characterized by relatively narrow …
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Probing the dynamics of radical reactions with polyatomic hydrocarbons by crossed-beam dc slice imaging
… internal energy the recoiling products. In the 1-pentene system, the results demonstrate the presence of H-atom abstraction channel yielding a resonantly-stabilized C5H9 radical. The results have implications for hydrocarbon growth and nitrile incorporation in formation of haze particles on …
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Thermoreversible Gelation, Crystallization and Phase Separation Kinetics in Polymer Solutions under High Pressure
… investigated in solutions of poly(4-methyl-1-pentene) [P4MP1] in n-pentane + CO₂ and in solutions of syndiotactic polystyrene [sPS] in toluene + CO₂, and also in acetophenone + CO₂ fluid mixtures over a pressure range up to 55 MPa and carbon dioxide levels up to 50 wt %. In pure pentane, P4MP1 …