This work describes the important effects of microstructural features on crystalline structure, mechanical behavior and molten state response for poly (propylene-co-1-pentene-co-1-heptene) terpolymers. The study was carried out in a wide range of compositions, varying the 1-pentene/1-heptene rat...

The zirconium acetamidinate catalyst {Cp*Zr(Me)2[N(Et)C(Me)N(tBu)]} (Cp* = ŋ5-C5Me5) was used to synthesize both random and block copolymers based on 4-methyl-1-pentene (4M1P) and 1-pentene. The polymers have been characterized by NMR spectroscopy, SEC, DSC, high temperature HPLC and CRYSTAF. Un...

The formation of small polycyclic aromatic hydrocarbons (PAHs) and their precursors can be strongly affected by reactions of C5 species. For improving existing combustion mechanisms for small PAH formation, it is therefore valuable to understand the fuel-specific chemistry of C5 fuels. To this e...

A mathematical mechanism of the n-pentane pyrolysis process based on free radical reaction model was presented. The kinetic parameters of n-pentane pyrolysis are obtained by quantum chemistry and the reaction network is established. The solution of the stiff ordinary differential equations in th...

The low temperature oxidation of n-pentane with nitric oxide (NO) addition has been investigated at 500–800 K in an atmospheric jet stirred reactor (JSR). The molar fraction of NO in the mixture is varied between 0 to 1070 ppm to study its chemical sensitization effect on low temperature oxidat...

Oxidation of n-pentane with molecular oxygen to sec-pentanols was performed in the presence of a free radical initiator (di-tert-butyl peroxide) and a boron compound (sec-butyl metaborate), with in situ adsorption of water on molecular sieve 3 A. Kinetics of the reaction was studied in a laborat...

The isomerization of n-pentane to generate high-quality blending components for clean gasoline was catalyzed by several amide-AlCl3-based ionic liquid (IL) analogs with various amides as donor molecules. The catalytic performance of these IL analogs was evaluated in a magnetic agitated autoclave...

With the aim to study potential cooperative effects in the low-temperature oxidation of dual-fuel combinations, we have investigated prototypical hydrocarbon (C5H12) / oxygenated (C2H6O) fuel mixtures by doping n-pentane with either dimethyl ether (DME) or ethanol (EtOH). Species measurements we...

Diethyl ether (DEE), epoxypropane (PO) and n-pentane have excellent ignition and combustion performance; hence, they have a wide variety of applications in industry and advanced aviation propulsion systems. As these fuels are flammable at normal temperature and pressure, their explosive characte...

Separation of branched chain hydrocarbons and straight chain hydrocarbons is very important in the isomerization process. Grand canonical ensemble Monte Carlo simulations were used to investigate the adsorption and separation of iso-pentane and n-pentane in four types of zeolites: MWW, BOG, MFI,...

Measurements of the thermal conductivity of n-pentane performed for the first time, in a coaxial cylinder cell operating in steady state conditions are reported. The measurements of the thermal conductivity of n-pentane were carried out along nine isotherms in the liquid state and fourteen isoth...

From density measurements at the temperatures T = 298.15 K and 313.15 K, excess volumes of (1-bromobutane + each of several isomers of butanol) were calculated. VE s are positive over the entire range of composition, except for mixtures containing butan-1-ol at T = 298.15 K, for which VE s show ...

The excess enthalpies HEm and excess molar volumes VEm of [x{CH3(CH2)3Br or CH3(CH2)3I} + (1 - x ){CH3(CH2)2Cl or CH3(CH2)4Cl}] and of [xCH3(CH2)3I + (1 - x ){CH3CH2Br or CH3(CH2)3Br}] have been measured at the temperature 298.15 K. Mixing was endothermic at all x and the HEmS were found to vary...

Excess molar volumes at 298.15, 308.15, and 318.15 K of (1-bromobutane + toluene) have been determined using a vibrating-tube digital densimeter. Their isothermal compressibilities at the same temperatures and also at 333.15 K have been measured using a direct-measurement piezometric technique. ...

Excess molar volumes at 298.15, 308.15, and 318.15 K, isothermal compressibilities at these temperatures and at 333.15 K, and excess molar Gibbs free energies from vapour-pressure measurements, have been determined for (1-bromobutane + benzene). A vibrating-tube densimeter, a direct-measurement ...

Excess molar volumes at 298.15, 308.15, and 318.15 K, isothermal compressibilities at those temperatures and at 333.15 K, and excess molar Gibbs free energies at 343.15 K, have been determined for (1-bromobutane + ethylbenzene). A vibrating-tube digital densimeter, a piezometer, and a dynamic eb...

Vapour pressures of 1-bromobutane+ethanol, or + 1-hexanol at 10 different temperatures between 278.15 and 323.15 K were measured by a static method. The reduction of the vapour pressures to obtain activity coefficients and excess molar Gibbs energies was carried out by fitting the vapour pressur...

Halogenated organic compounds, such as 1-bromobutane (1-BB), have been used as cleaning agents, agents for chemical syntheses, or extraction solvents. In the present study, hepatotoxic effects of 1-BB and its conjugation with glutathione (GSH) were investigated in female BALB/c mice. Animals wer...

The rotational spectrum of 1-bromobutane has been measured in the range of 8–18 GHz using a 480 MHz bandwidth chirped-pulse Fourier transform microwave (CP-FTMW) spectrometer. 1-bromobutane has five conformers; aa, ag, ga, gg, gg′. Spectra for the 79Br isotopic species and 81Br isotopic specie...

Polyamines are aliphatic amines with low molecular weight that are widely recognized as one of the most important cancer biomarkers for early diagnosis and treatment. The goal of the work herein presented is the development of a rapid and simple method for the quantification of free polyamines (...