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    Excess volumetric properties of mixtures (epichlorohydrine plus toluene and epichlorohydrine plus xylene) at 298.15, 308.15, 323.15, and 338.15 K1
    (Interperiodica, 2004) Vural, US; Muradoglu, V; Yuruk, H
    The densities and excess molar volumes of (epichlorohydrine + toluene and xylene) mixtures were determined at different temperatures. The graphs of excess molar volumes against mole fraction of mixtures show a negative and positive slope because of charge-transfer interaction and physical forces at 298.15, 308.15, 323.15, and 338.15 K, respectively.
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    Excess volumetric properties of mixtures epichlorohydrine plus acetone or chloroform at 291.15 and 296.15 K
    (Interperiodica, 2003) Vural, US; Yuruk, H; Muradoglu, V
    The excess molar volumes and densities of mixtures containing epichlorohydrine, acetone, and chloroforrn were determined at different temperatures by the Redlich-Kister equation. Chemical interaction and physical forces are very important influences on the excess molar volume of (epichlorohydrine + acetone or chloroform) mixtures. In addition, the variations of excess molar volumes were expressed as function of temperature.
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    The synthesis, characterization and thermal stability of oligo-4-hydroxybenzaldehyde
    (ELSEVIER SCI LTD, 2004) Mart, H; Yuruk, H; Sacak, M; Muradoglu, V; Vilayetoglu, AR
    Oligo-4-hydroxybenzaldehyde (OHBA) was synthesized from the oxidative polycondensation of 4-hydroxybenzaldehyde (HBA) with hydrogenperoxide (H2O2) in an aqueous alkaline medium at 85 degreesC. The product was characterized by H-1 NMR, FT-IR, UV-Vis and elemental analysis. The number average molecular weight, mass average molecular weight and polydispersity index values of OHBA were found to be 5171, 8625 g mol(-1) and 1.668, respectively. The thermal stability of the oligomer was measured by thermogravimetric analyses (TG) under an air atmosphere. TG analyses showed OHBA to be resistant to thermo-oxidative decomposition. The weight loss of OHBA was found to be 5, 50 and 89% at 171, 845 and 900 degreesC, respectively. According to TG analyses, the carboneous residues of the OHBA was 49.29% at 900 degreesC. (C) 2003 Elsevier Ltd. All rights reserved.