We report here a comprehensive spectroscopic study of the absorption spectrum of the n-dodecane molecule using synchrotron radiation based photoabsorption and FTIR spectroscopy. Quantum chemical calculations using the DFT and TDDFT methodologies are used to predict relevant ground and excited st...

The liquid—solid equilibrium temperatures in the binary systems between hexadecane and methyl nonadecanoate, methyl octadecanoate, ethyl octadecanoate, and methyl hexadecanoate are determined in order to obtain the interchange parameters between CH3 or CH2 and COO groups by means of group inter...

Methyl ω-deuterated tetradecanoates have been prepared in high purity by two synthetic routes from methyl hydrogen tetradecanedioate. One method utilizes the selective reducing properties of sodium borodeuteride and sodium cyanoborodeuteride towards, acid chloride, ester, tosyloxy, and iodo gro...

High pressure phase equilibria measurements using a static synthetic view cell for methyl decanoate, methyl dodecanoate, methyl hexadecanoate, methyl octadecaonate and methyl docosanoate in supercritical propane were conducted between 376.6 and 412.4 K at methyl ester mass fractions between 0.01...

The second generation of Bioenergy: a study of CPO liquid waste-based biodiesel production technology has been conducted. The aims of this study were to obtain biodiesel from Industrial liquid waste of CPO processing and to identify the kind of methyl-ester compound of the biodiesel. The product...

Tar is generated in the process by the condensation of the gas resulting from biomass gasification. The objective of this work is a contribution to the database on thermodynamic quantity which will be useful at the operation of tar removal from aqueous medium. With this aim, (liquid + liquid) eq...

Ni/HZSM-5 catalysts with different Ni loadings were prepared by impregnation method, and their catalytic performance was evaluated in the hydrodeoxygenation (HDO) upgrading of the model reactant methyl hexadecanoate (MHD) to liquid alkane fuels. The physicochemical properties of the catalysts we...

Tapping mode atomic force microscopy and capacitance versus voltage measurements were employed to study the effects of electron-beam exposure on self-assembled monolayers of 10-undecenoic acid. It was established that exposure increases chemical/mechanical stability, resulting in a thicker layer...

A simple synthetic route is used for the preparation of hydroxyl functionalized polyesters from an AB-type monomer carrying an epoxy and carboxylic acid group. A systematic study of the reaction conditions suggested that tetrabutylphosphonium bromide was the better polymerization catalyst to obt...

We report herein the selective hydroxylation of 10-undecenoic acid with a light-activated hybrid P450 BM3 enzyme. Under previously developed photocatalytic reaction conditions, only a monohydroxylated product is detected by gas chromatography. Hydroxylation occurs exclusively at the allylic posi...

A new class of polyol esters were prepared by esterification of 10-undecenoic acid (UDA) with three polyols namely trimethylolpropane (TMP), neopentyl glycol (NPG) and pentaerythritol (PE) in 92–96% yields. The esters were characterized by IR, 1H NMR, HPLC and mass spectral studies. Polyol este...

Crude castor oil hydrolysates mainly consisting of ricinoleic acid can be biologically converted to 11-hexyloxy-9-undecenoic acid (C18) with an unsaturated bond and an ester bond which is utilized as a fertile chemical platform. The platform chemical of 11-hexyloxy-9-undecenoic acid can be conve...

The solubilities of 10-undecenoic acid and geraniol in supercritical carbon dioxide were measured at 308, 313, 323 and 333 K, and at pressures of 10–18 MPa. Solubilities (in mole fraction) ranged from 0.4 × 10−3 to 17.4 × 10−3 for 10-undecenoic acid and 2.7 × 10−3 to 25 × 10−3 for geraniol,...

A new class of C22-dimer acid esters was synthesized from 10-undecenoic acid by montmorillonite K10 clay catalyzed polymerization to dimer acid followed by their esterification using straight and branched chain alcohols (C1 to C10). All the newly synthesized products were characterized by IR, 1H...

The hydrolytic and enzymatic degradations of aliphatic polyesters: poly (10,11-epoxyundecanoic acid) (PEAU) bearing hydroxyl groups along the main chain and poly (11-hydroxyundecanoate)diol (PHU), were studied and compared to that of commercial poly (ε-caprolactone)diol (PCL). Changes taking pl...

A lipophilic analog of bilirubin with propionic acid groups replaced by undecanoic acid groups (1), was synthesized from 11-bromo-undecanoic acid. UV-visible and NMR spectroscopic analyses suggest reduced intramolecular H-bonding and a preference for a helical conformation. Molecular dynamics co...

Electron microscopy and electron diffraction were used in conjunction with a radioactive tracer to investigate experimentally the adsorption of undecanoic acid and nonadecanoic acid from cyclohexane solution on the carefully characterized (100), (110), (111), and (311) faces of copper and oxidiz...

Development of 68Ga labeled fatty acids is of immense interest due to the availability of 68Ga through a generator and its superiority over SPECT based tracers in carrying out dynamic imaging on a PET scanner. Our present work explores the influence of different chelators on the cardiac uptake a...

We have determined the surface pressure vs area (π-A) diagrams for three 11-thioalkyl undecanoic acids, where the alkyl groups were hexyl (C6), decyl (C10), and eicosyl (C20). Both the C6 and the C10 compounds displayed features which are interpreted as a compression followed by a lifting of th...

Based on the membrane addressing concept, designing and synthesis of 11-(3,5-di-tert-butyl-2-hydroxyphenylcarbamoyl)undecanoic acid have been carried out. Antioxidant properties of the prepared compound were investigated in comparison with its non-amphiphilic analogues.