Search Results - "olefin"

Chromium(III) based Ziegler-Natta catalysts for olefin polymerization by Wong .J.X, Gan .S.N, Aishah .M.J

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Surface immobilisation of antibody on cyclic olefin copolymer for sandwich immunoassay by Raj, J., Herzog, G., Manning, M., Volcke, C., MacCraith, B., Ballantyne, S., Thompson, M., Arrigan, Damien

“…In this work, the surface functionalisation of the commercially available cyclic olefin copolymer (COC)materials, ZeonorR and ZeonexR, has been studied. …”
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Pengeksploitasian tindak balas metatesis olefin terhadap sumber semulajadi negara. by Yarmo, Mohd Ambar, Alimuniar, Arisol, Abd. Ghani,, Rusli, Nik Yusoff, Nik Idris, Abd. Rahman, Mohd. Zaki

“…Tindak balas metatesis olefin adalah sejenis tindak balas kimia yang membolehkan pemutUsan, pembentukan semula dan saling penukaran ikatan dubel (Olefin) pada molekul hidrokarbon berolefin dengan adanya mangkin tertentu. …”
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Diterpene chemistry. V* Thallium(III) nitrate oxidations of exocyclic olefins by Grant, Peter K., Liau, Henry T. L., Low, Kun She

“…The oxidative rearrangement reported for acyclic and endocyclic olefins with thallium(m) nitrate does not occur with exocyclic olefins. …”
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Techno-economic and environmental assessment of CO2 utilisation processes for the production of dimethyl ether and olefins by Ahmed, Mohamed

“…The total production cost was reduced to $482.98 to 683.52 t-1 DME and $857.87 to $1083.06 t-1 olefins; whilst the total production cost of the conventional production process’ decreased to $417.78 t-1 DME and $578.46 t-1 olefins. …”
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Preparation of Mesoporous SBA-16 Silica-Supported Biscinchona Alkaloid Ligand for the Asymmetric Dihydroxylation of Olefins by Sarkar, Shaheen M., Md. Eaqub, Ali, Lutfor, M. R., M. M., Yusoff

“…Optically active cinchona alkaloid was anchored onto mesoporous SBA-16 silica and the as-prepared complex was used as a heterogeneous chiral ligand of osmium tetraoxide for the asymmetric dihydroxylation of olefins. The prepared catalytic system provided 90–93% yield of vicinal diol with 92–99% enantioselectivity. …”
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Effect of reaction conditions on the lifetime of SAPO-34 catalysts in methanol to olefins process – A review by Muhammad Sheraz, Ahmad, Chin, Kui Cheng, Prakash, Bhuyar, Atabani, A.E, Pugazhendhi, Arivalagan, Thúy LanChi, Nguyen, Witoon, Thongthai, Jun Wei, Lime, Joon, Ching Juan

“…Methanol-to-olefins (MTO) conversion process is the most preferentially-selected route to synthesize olefins even though obtaining the high selectivity remains a challenge to this day. …”
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Exergetic, economic and carbon emission studies of bio-olefin production via indirect steam gasification process by Jiang, Peng, Parvez, Ashak Mahmud, Meng, Yang, Xu, Meng-xia, Shui, Tian-chi, Sun, Cheng-gong, Wu, Tao

Subjects: “…Bio-olefin; Thermodynamic analysis; Environmental assessment; CO2 utilization; Negative net CO2 emission; Techno-economic analysis…”
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Comparative analysis of the properties: microcrystalline cellulose fiber polyamide composites filled with ethylene copolymer and olefin elastomer by Beg, M. D. H., Islam, Muhammad Remanul, Mamun, A. A., Heim, Hans P., Feldmann, M.

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Diterpene chemistry—VI: SeO2/H2O2 oxidations of exocyclic olefins by Francis, M. J., Grant, P. K., Low, K. S., Weavers, R. T.

“…Unlike endocyc1ic olefins the major product from the SeO,/H,O, oxidation of exocyc1ic olefins is the same ally1ic alcohol as from the uncata1ysed oxidation. …”
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Synthesis of some chromium (III) complexes and the use of these complexes as catalyst for the polymerization of alpha-olefins / Che Ibrahim bin Abdullah by Abdullah, Che Ibrahim

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Optically pure, structural and fluorescent analogues of a dimeric Y4 receptor agonist derived by an olefin metathesis approach by Liu, Mengjie, Mountford, Simon J., Richardson, Rachel R., Groenen, Marleen, Holliday, Nicholas D., Thompson, Philip E.

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Comparison of tribological performance of zinc dialkyldithiophosphate (ZDDP) in poly-alpha-olefin (PAO) and palm oil-based trimethylopropane (TMP) ester by Zahid, Rehan, Hassan, Masjuki, Munusamy, Mahendra Varman, Mufti, Riaz Ahmad, Kalam, Md. Abul, Gulzar, Mubashir, Yunus, Robiah

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Chain length dependent olefin re-adsorption model for Fischer-Tropsch synthesis over Co-Al2O3 catalyst by Bhatelia, Tejas, Li, C., Sun, Y., Hazewinkel, P., Burke, N., Sage, V.

“…Models were developed using, carbide, enolic and CO insertion mechanisms. The concept of 1-olefin re-adsorption and its chain length dependency was introduced. …”
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Mechanistic Investigations into Catalytic Wittig Reactions by Ficarra, Filippo

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Ru-based olefin metathesis catalysts bearing ph-responsive n-heterocyclic carbene (NHC) ligands: Activity control via degree of protonation by Balof, S., Yu, B., Lowe, Andrew, Ling, Y., Zhang, Y., Schanz, H.

“…Olefin metathesis catalysts (H2ITap)(PCy3)Cl2Ru=CHPh (4)and (H2ITap)Cl2Ru=CH-(C6H4-O-iPr) (5)[H2ITap = 1,3-bis-(2-,6-dimethyl-4- dimethylaminophenyl)-4,5-dihydroimid-azol-2-ylidene] were used for the ring-opening metathesispolymerization (ROMP) of exo-7-oxanorbornene derivative 7in the presence of various amounts of acid. …”
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Hydrodynamics and particle mixing/segregation measurements in an industrial gas phase olefin polymerization reactor using image processing technique and CFD-PBM model by Aramesh, Roya, Akbari, Vahid, Shamiri, Ahmad, Hussain, Mohamed Azlan, Aghamohammadi, Nasrin

“…This paper develops a new method of digital image processing that investigates the hydrodynamics of an industrial gas phase olefin polymerization reactor and studies the fluidization structure of a wide range of particle size distribution in an industrial gas phase polymerization reactor by means of a CFD-PBM coupled model, where the direct quadrature method of moments (DQMOM) was implemented to solve the population balance model. …”
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Pore size effects on physicochemical properties of Fe-Co/K-Al2O3 catalysts and their catalytic activity in CO2 hydrogenation to light olefins by Numpilai, T., Chanlek, N., Poo-Arporn, Y., Wannapaiboon, S., Cheng, C. K., Siri-Nguan, N., Sornchamni, T., Kongkachuichay, P., Chareonpanich, M., Rupprechter, G., Limtrakul, J., Witoon, Thongthai

“…Eliminating diffusion limitation by increasing the pore sizes of Al2 O3 supports can suppress the hydrogenation of olefins to paraffins and thus the largest pore catalyst (CL-Al2 O3 ) gives the highest olefins to paraffins ratio of 6.82. …”
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A green approach towards synthesis and characterization of Ni(II)- and Pd(II)-N- heterocyclic carbene complexes of pincer ligands: their application in catalytic olefin oxidation studies. by S.M Anwarul Haque, Rosenani

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Improved molecular weight control in ring-opening metathesis polymerization (ROMP) reactions with ru-based olefin metathesis catalysts using n. donors and acid: a kinetic and mechanistic investigation by Dunbar, M., Balof, S., Labeaud, L., Yu, B., Lowe, Andrew, Valente, E., Schanz, H.

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