Search results for "Ethylene"
showing 10 items of 2589 documents
Silica powder obtained by sol-gel method as a support of organometallic vanadium catalyst for ethylene polymerization
2004
Sol-gel technique was employed to obtain the silica-type powder, which after modification procedure was applied as asupport of organometallic catalytic system for ethylene polymerization. The powder product was synthesized using hydrolysis and condensation of TEOS, catalyzed by ammonia. Obtained material and a reference support (commercial silica Davisil) were characterized to determine their particle size distributions, BET surface area, pore volume and diameter. Gas-phase adsorption of vanadium catalyst on analyzed support materials as well as adsorption from the solution in hexane were carried out. Both carrier materials were thermally pretreated prior catalytic systems syntheses and the…
CCDC 846271: Experimental Crystal Structure Determination
2012
Related Article: G.Callebaut, S.Mangelinckx, L.Kiss, R.Sillanpaa, F.Fulop, N.De Kimpe|2012|Org.Biomol.Chem.|10|2326|doi:10.1039/c2ob06637h
A route to simple nonionic surfactants
2016
AbstractA method for the synthesis of nonionic surfactants – N-alkyl-O-(2-hydroxyethyl) carbamates is proposed by acylation of fatty amines with ethylene carbonate without any solvent or catalyst. The surface tension of the prepared surfactants was measured, toxicity and biodegradability were determined for the surfactant with n-dodecyl as a hydrophobic group and N-monosubstituted amide and hydroxyl groups for their hydrophilic part.
CCDC 947463: Experimental Crystal Structure Determination
2013
Related Article: Anssi Peuronen, Esa Lehtimäki, and Manu Lahtinen|2013|Cryst.Growth Des.|13|4615|doi:10.1021/cg401246n
CCDC 240303: Experimental Crystal Structure Determination
2005
Related Article: E.Coronado, S.Curreli, C.Gimenez-Saiz, C.J.Gomez-Garcia|2012|Inorg.Chem.|51|1111|doi:10.1021/ic202269x
CCDC 837033: Experimental Crystal Structure Determination
2012
Related Article: E.Coronado, S.Curreli, C.Gimenez-Saiz, C.J.Gomez-Garcia|2012|Inorg.Chem.|51|1111|doi:10.1021/ic202269x
CCDC 837031: Experimental Crystal Structure Determination
2012
Related Article: E.Coronado, S.Curreli, C.Gimenez-Saiz, C.J.Gomez-Garcia|2012|Inorg.Chem.|51|1111|doi:10.1021/ic202269x
CCDC 749412: Experimental Crystal Structure Determination
2012
Related Article: E.Coronado, S.Curreli, C.Gimenez-Saiz, C.J.Gomez-Garcia|2012|Inorg.Chem.|51|1111|doi:10.1021/ic202269x
CCDC 1054512: Experimental Crystal Structure Determination
2015
Related Article: Chandan Giri, Filip Topić, Massimo Cametti, Kari Rissanen|2015|Chemical Science|6|5712|doi:10.1039/C5SC01851J
Oxidation-responsive and "clickable" poly(ethylene glycol) via copolymerization of 2-(methylthio)ethyl glycidyl ether
2016
Poly(ethylene glycol) (PEG) is a widely used biocompatible polymer. We describe a novel epoxide monomer with methyl-thioether moiety, 2-(methylthio)ethyl glycidyl ether (MTEGE), which enables the synthesis of well-defined thioether-functional poly(ethylene glycol). Random and block mPEG-b-PMTEGE copolymers (Mw/Mn = 1.05-1.17) were obtained via anionic ring opening polymerization (AROP) with molecular weights ranging from 5 600 to 12 000 g·mol-1. The statistical copolymerization of MTEGE with ethylene oxide results in a random microstructure (rEO = 0.92 ± 0.02 and rMTEG E = 1.06 ± 0.02), which was confirmed by in situ 1H NMR kinetic studies. The random copolymers are thermorespon…