Browsing Τμήμα Χημείας / Department of Chemistry by Title
Now showing items 1183-1202 of 1299
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Article
Thermolyzable polymer networks and star polymers containing a novel, compact, degradable acylal-based dimethacrylate cross-linker: Synthesis, characterization, and thermolysis
(2007)A compact, cleavable acylal dimethacrylate cross-linker, 1,1-ethylenediol dimethacrylate (EDDMA), was synthesized from the anhydrous iron(III) chloride-catalyzed reaction between methacrylic anhydride and acetaldehyde. The ...
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Article
Thermoresponsive Hydrogels Based on Telechelic Polyelectrolytes: From Dynamic to “Frozen” Networks
(2018)A novel thermoresponsive gelator of (B-co-C)-b-A-b-(B-co-C) topology, comprising a poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) weak polyelectrolyte as central block, end-capped by thermosensitive poly(triethylene ...
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Book Chapter
Thirty Years of Amphiphilic Polymer Co-networks
(Royal Society of Chemistry, 2020)Amphiphilic polymer co-networks (APCNs) constitute a type of polymeric hydrogels, endowed with hydrophobic polymer segments in addition to their hydrophilic components, which results in lower aqueous swelling and, consequently, ...
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Article
Thorium adsorption by oxidized biochar fibres derived from Luffa cylindrica sponges
(2018)The present study deals with the preparation of oxidized biochar fibres derived from Luffa cylindrica sponges and the subsequent adsorption of Th(IV). The adsorption experiments were performed by batch-type experiments and ...
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Article
Thorium determination in aqueous solutions after separation by ion-exchange and liquid extraction
(2011)The concentration of thorium in aqueous samples has been determined by means of alpha-spectroscopy and UV-Vis photometry after chemical separation and pre-concentration of the actinide by cation exchange and liquid-liquid ...
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Article
Thorium determination in water samples by liquid scintillation counting after its separation by cloud point extraction
(2011)The aim of this study is the separation and pre-concentration of thorium from aqueous solutions by cloud point extraction (CPE) and its the radiometric determination by liquid scintillation counting (LSC). For CPE, tributyl ...
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Article
Thorium removal from acidic aqueous solutions by activated biochar derived from cactus fibers
(2016)The removal of thorium from acidic aqueous solutions (pH 3) by activated biochar fibers obtained from Opuntia Ficus Indica has been investigated by batch experiments as a function of the initial metal concentration, ionic ...
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Article
Three different types of quasi-model networks: Synthesis by group transfer polymerization and characterization
(2007)Group transfer polymerization (GTP) chemistry was employed for the preparation of polymethacrylate networks of controlled structure (quasi-model networks) of three different types: (a) regular quasi-model networks, in which ...
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Article
Three-step synthesis of ethyl canthinone-3-carboxylates from ethyl 4-bromo-6-methoxy-1,5-naphthyridine-3-carboxylate via a Pd-catalyzed Suzuki-Miyaura coupling and a Cu-catalyzed amidation reaction
(2011)Ethyl canthin-6-one-1-carboxylate (1b) and nine analogues 1c-k were prepared from readily prepared ethyl 4-bromo-6-methoxy-1,5-naphthyridine-3- carboxylate (2b) via a three-step non-classical approach that focused on ...
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Article
Time resolved infrared absorption studies of geminate recombination and vibrational relaxation in OCIO photochemistry
(2004)The first ultrafast time-resolved infrared absorption studies of the geminate recombination and vibrational relaxation dynamics of aqueous chlorine dioxide (OCIO) were presented. The rapid increase in optical density ...
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Article
Time-Resolved Resonance Raman and Time-Resolved Step-Scan FTIR Studies of Nitric Oxide Reductase from Paracoccus denitrificans: Comparison of the Heme b3-FeB Site to That of the Heme-CuB in Oxidases
(2003)Time-resolved resonance Raman (TR3) and time-resolved step-scan (TRS2) FTIR spectroscopies have been used to probe the structural dynamics at the heme b3 proximal and distal sites after carbon monoxide photolysis from fully ...
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Article
Time-resolved resonance Raman studies of halooxide photoisomerization kinetics
(2003)The condensed-phase photoisomerization dynamics of chlorine dioxide and dichlorine monoxide are investigated using femtosecond pump-probe and time-resolved resonance Raman. These studies demonstrate that photoisomerization ...
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Article
A Time-Resolved Resonance Raman Study of Chlorine Dioxide Photochemistry in Water and Acetonitrile
(1999)The photochemistry of chlorine dioxide (OClO) in water and acetonitrile is investigated using time-resolved resonance Raman spectroscopy. Stokes and anti-Stokes spectra are measured as a function of time following ...
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Article
Time-resolved step-scan Fourier transform infrared investigation of heme-copper oxidases: Implications for O2 input and H 2O/H+ output channels
(2004)We have applied FTIR and time-resolved step-scan Fourier transform infrared (TRS2-FTIR) spectroscopy to investigate the dynamics of the heme-CuB binuclear center and the protein dynamics of mammalian aa3, Pseudomonas ...
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Article
Topochemical transformations of substituted cyclopentanone transition metal adducts
(2002)The application of chelation to transition metal ions as a means of controlling the packing motifs of substituted catechols and of substituted malonates has been studied. Substituted malonates have been shown to be capable ...
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Article
Total synthesis of psammaplysenes A and B, naturally occurring inhibitors of FOXO1a nuclear export
(2005)(Chemical Equation Presented) Two inhibitors of FOXO1a-mediated nuclear export, psammaplysenes A and B, have been synthesized by a flexible and efficient route. A common starting material, 4-iodophenol, was used to prepare ...
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Article
Trace detection of endogenous human volatile organic compounds for search, rescue and emergency applications
(2015)Since Pauling's paper in the 1970s, interest has increased in volatile organic compounds (VOCs) released from different bio-fluids, such as blood and urine. A number of VOCs reflect internal biochemical pathways occurring ...
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Article
Tranilast-induced stress alleviation in solid tumors improves the efficacy of chemo- and nanotherapeutics in a size-independent manner
(2017)Accumulation of mechanical stresses during cancer progression can induce blood and lymphatic vessel compression, creating hypo-perfusion, hypoxia and interstitial hypertension which decrease the efficacy of chemo- and ...
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Book
Transatlantic relations and modern diplomacy : an interdisciplinary examination
(Routledge/Taylor & Francis Group, 2014)
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Book
Transatlantic Relations and Modern Diplomacy : An interdisciplinary examination
(Taylor and Francis, 2013)