Browsing Τμήμα Χημείας / Department of Chemistry by Title
Now showing items 679-698 of 1320
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Article
N2O decomposition over ceria-promoted Ir/Al2O3 catalysts: The role of ceria
(2016)The impact of CeO2 in the Al2O3-20wt% CeO2 support prepared by the co-precipitation method on the Ir particle size, morphology and oxidation state, and in turn on the deN2O catalytic activity (1000ppmN2O) of supported Ir ...
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Conference Object
Nano-engineered model networks: Synthesis, characterization and modeling
(Polymer Preprints ACS, 2002)
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Conference Object
Nanophase separated anionic amphiphilic model conetworks based on methacrylic acid
(2007)Two series of model amphiphilic polymer conetworks were synthesized by group transfer polymerization (GTP). The first one contained methyl methacrylate (MMA) and the second one 2-butyl-l-octyl methacrylate (BOMA) as ...
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Article
Nanoscopic cationic methacrylate star homopolymers: Synthesis by group transfer polymerization, characterization and evaluation as transfection reagents
(2004)Seven star polymers with degrees of polymerization (DPs) of the arms from 10 to 100 and dimensions in the nanometer range were prepared using sequential group transfer polymerization of 2-(dimethylamino)-ethyl methacrylate ...
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Conference Object
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Article
The nature of supported-molybdena catalysts. Evidence from a Raman and X-ray diffraction investigation of pyridine adsorption
(1987)Raman spectroscopy and X-ray diffraction have been used to characterise molybdena catalysts supported on γ-alumina and silica. Raman spectroscopy of pyridine molecules adsorbed on these samples was used to characterise the ...
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Article
Near real-time VOCs analysis using an aspiration ion mobility spectrometer
(2013)The ChemPro 100i chemical detector (aspiration-type ion mobility spectrometer) was used for the detection of selected volatile organic compounds known to be potential indicators of human presence. The targeted group of ...
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Article
Near-Model Amphiphilic Polymer Conetworks Based on Four-Arm Stars of Poly(vinylidene fluoride) and Poly(ethylene glycol): Synthesis and Characterization
(2018)Amphiphilic polymer conetworks (APCN) were prepared in N,N-dimethylformamide (DMF) by the interconnection of four-arm star poly(vinylidene fluoride) (PVDF, Mn = 8800 Da) end-functionalized with benzaldehyde groups and ...
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Article
Near-monodisperse sodium polymethacrylates: Characterization by linear salt gradient anion-exchange chromatography
(2000)A family of six near-monodisperse homopolymers of sodium methacrylate (Mn = 1100, 3200, 5500, 7200, 14100, and 21000) is characterized by linear salt gradient anion-exchange chromatography. Although the retention times ...
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Article
Near-monodisperse α-hydroxy and α,ω-dihydroxy amine-based polymers: Synthesis and characterization
(1999)α-Hydroxy and α,ω-dihydroxy polymers of 2-(dimethylamino)ethyl methacrylate (DMAEMA) of various molecular weights were synthesized by group transfer polymerization (GTP) in tetrahydrofuran (THF), using 1-methoxy-1-(trime ...
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Article
Near-monodisperse, catalytically active, imidazole-containing homooligomers: Synthesis by group transfer polymerization and solution characterization
(1999)Oligomers covering degrees of polymerization up to 23 of 2-(1-imidazolyl)-ethyl methacrylate (ImEMA) were synthesized by group transfer polymerization (GTP) in propylene carbonate and tetrahydrofuran (THF). While GTP ...
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Article
Near-monodisperse, n-alkyl, end-functionalized poly(methyl vinyl ether)s: Synthesis by living cationic polymerization and solution characterization
(1998)Water-soluble amphiphilic diblock copolymers were synthesized by the living cationic polymerization of methyl vinyl ether (hydrophilic block) and its subsequent termination with n-alcohols of chain lengths varying from one ...
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Article
Networks Based on “Core-First” Star Polymers End-Linked Using a Degradable Ketal Cross-Linker: Synthesis, Characterization, and Cleavage
(2018)Sequential group transfer polymerization of cross-linker, monomer (methyl methacrylate), and cross-linker again is used to prepare cleavable polymer networks based on interconnected “core-first” star polymers. By employing ...
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Article
Networks Based on “Core-First” Star Polymers End-Linked Using a Degradable Ketal Cross-Linker: Synthesis, Characterization, and Cleavage
(2018)Sequential group transfer polymerization of cross-linker, monomer (methyl methacrylate), and cross-linker again is used to prepare cleavable polymer networks based on interconnected “core-first” star polymers. By employing ...
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Article
A new [2 + 2] functionalization of C60 with alkyl-substituted 1,3- butadienes: A mechanistic approach. Stereochemistry and isotope effects
(1998)The stereochemistry and secondary isotope effects of the [2 + 2] photocycloaddition of trans,trans- (7), cis,cis- (8), and cis,trans-2,4- hexadiene (9), 2,5-dimethyl-2,4-hexadiene (1), and its deuterated analogues 1-d1, ...
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Article
New antimony(III) bromide complexes with thioamides: Synthesis, characterization, and cytostatic properties
(2009)New antimony(III) bromide complexes with the heterocyclic thioamides, thiourea (TU), 2-mercapto-1-methylimidazole (MMl), 2-mercapto-benzimidazole (MBZlM), 2-mercapto-5-methyl-benzimidazole (MMBZIM), 5-ethoxy-2-mercapto- ...
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Article
New antimony(III) halide complexes with dithiocarbamate ligands derived from thiuram degradation: The effect of the molecule's close contacts on in vitro cytotoxic activity
(2016)Antimony(III) halide complexes of the formulae {[SbBr(Me2DTC)2]n} (1), {[SbI(Me2DTC)2]n} (2) and {[(Me2DTC)2Sb(μ2-I)Sb(Me2DTC)2]+.I3-} (3) (Me2DTC = dimethyldithiocarbomate) were synthesized from SbX3, (X = Br or I) and ...
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Article
A new class of ferromagnetically-coupled mixed valence vanadium(IV/V) polyoxometalates
(2003)Reaction of [VVIOCl2(thf)2] with a bidentate nitrogen-donor ligand (L: phen = 1,10-phenanthroline, 5-mephen = 5-methyl-1,10-phenanthroline, bipy = 2,2′-bipyridine, 5,5′-me2bipy = 5,5′-dimethyl-2,2′-bipy) in methyl alcohol, ...
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Article
A new family of octanuclear Mn complexes with a rod-like topology
(2009)Three new octanuclear compounds were prepared from reactions of [Mn(O2CR)2]·2H2O (R = Et or Ph) with the diols 1,3-propanediol (pdH2) or 2-methyl-1,3-propanediol (mpdH2) in the presence of NaN3. All three compounds ...
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Article
New metal-organic frameworks derived from pyridine-3,5-dicarboxylic acid: Structural diversity arising from the addition of templates into the reaction systems
(Royal Society of Chemistry, 2020-03-21)A series of new compounds prepared from reactions of pyridine-3,5-dicarboxylic acid (PDCH2), bipositive d-metal ions (Cd2+, Zn2+, Co2+ and Cu2+) and various template molecules [1,3-propanediol (pdH2), diethanolamine (deaH3), ...