Study of metal xanthates as potential catalysts in polymerization

Bolat, Tuba


Study of asymmetric aldol and Mannich reactions catalyzed by proline-thiourea host-guest complexes in nonpolar solvents
Demir, Ayhan Sıtkı; BAŞÇEKEN, SİNAN (Elsevier BV, 2013-04-30)
A proline-thiourea host-guest complex has been described as a good catalyst for asymmetric reactions such as aldol and Mannich reactions. High stereoselectivities were obtained under optimal conditions. Thiourea was observed to have an important effect on the reactivity and selectivity, even in an unconventional nonpolar reaction medium and without the need to utilize low temperatures. This proline-thiourea host-guest system has the ability to participate in a hydrogen bonding network.
Study of W boson production in pPb collisions at root(NN)-N-S=5.02 TeV
Adam, W.; et. al. (Elsevier BV, 2015-11-01)
The first study of W boson production in pPb collisions is presented, for bosons decaying to a muon or electron, and a neutrino. The measurements are based on a data sample corresponding to an integrated luminosity of 34.6 nb(-1) at a nucleon-nucleon centre-of-mass energy of root(NN)-N-S = 5.02 TeV, collected by the CMS experiment. The W boson differential cross sections, lepton charge asymmetry, and forward-backward asymmetries are measured for leptons of transverse momentum exceeding 25 GeV/c, and as a fu...
Study of ring opening polymerisation by using several metal xanthates
Soysal, Özlem; Alyürük, Kemal; Department of Chemistry (2001)
Study of the optical and photoelectrical properties of TlGaSeS layered single crystals
Delice, S.; Hasanlı, Nızamı (Elsevier BV, 2017-06-01)
Transmission spectra (7) of TIGaSeS crystals in the photon energy (hv) range 1.38-2.38 eV are used to determine the energy gap. The indirect band gap of 2.30 eV was established employing the photon energy dependence of the first derivative dT/d(hv) and the photon energy dependence of absorption coefficient. In order to obtain information about the defect states in the energy gap of TlGaSeS crystals, photoconductivity (PC) measurements are performed in the 140-300 K range. Photoconductivity spectra in the ph...
Study of zeolite influence on analytical characteristics of urea biosensor based on ion-selective field-effect transistors
Shelyakina, Margaryta K.; Soldatkin, Oleksandr O.; Arkhypova, Valentyna M.; Kasap, Berna O.; Akata Kurç, Burcu; Dzyadevych, Sergei V. (2014-03-17)
A possibility of the creation of potentiometric biosensor by adsorption of enzyme urease on zeolite was investigated. Several variants of zeolites (nano beta, calcinated nano beta, silicalite, and nano L) were chosen for experiments. The surface of pH-sensitive field-effect transistors was modified with particles of zeolites, and then the enzyme was adsorbed. As a control, we used the method of enzyme immobilization in glutaraldehyde vapour (without zeolites). It was shown that all used zeolites can serve a...
Citation Formats
T. Bolat, “Study of metal xanthates as potential catalysts in polymerization,” Middle East Technical University, 1999.