A series of Cu-modified zeolites (ZSM-5, MOR, MCM-22, Hβ, and SAPO-34) were prepared by the impregnation method and evaluated for n-butylamine selective catalytic oxidation. The structures, surface acidity distributions, redox properties, and Cu species of the catalysts were characterized using...

Bioamination methods using microorganisms have attracted much attention because of the increasing demand for environmentally friendly bioprocesses. n-Butylamine production from glucose in Escherichia coli was demonstrated in this study, which has never been reported because of the absence of n-b...

The influence of interaction enthalpy (ΔHMOD/BuLi) of μ, σ, σ+μ and σ-μ complexing polar modifiers with n-butyllithium on the 1,3-butadiene anionic polymerization enthalpy (ΔHBD), polymerization reaction rate (kp) and polybutadiene microstructure was studied. It has been found that entha...

A simple and facile method for the synthesis of aromatic tertiary amines by amination of fluoroarenes with secondary amines in the presence of n-butyllithium at room temperature was reported.

The molecular structures and conformational compositions of 1-bromo-3-chloropropane (BCP) and 1,3-diiodopropane (DIP) have been studied by gas-phase electron diffraction at 27 and 38°C, respectively. BCP was found to exist as a mixture of the following four conformers, with estimated mole fract...

The photodissociation of 1-bromo-3-chloropropane was studied at 234 and 265 nm using ion velocity imaging technique. Bromine fragments in this study were produced via direct dissociation of C–Br bond. The speed and angular distributions of Br∗ and Br were measured. The appearance of chlorine fr...

Vapor-liquid equilibria at 101.3 kPa have been determined for binary systems propyl bromide-i-butanol, propyl bromide-1-chlorobutane and 1-chlorobutane-methyl ethyl ketone. The binary systems propyl bromide-i-butanol and 1-chlorobutane-methyl ethyl ketone exhibit positive deviations from ideal b...

Vapour pressures of 1-chlorobutane+2-butanol, or 1-chlorobutane+2-methyl-1-propanol at 10 temperatures between 278.15 and 323.15 K were measured by a static method. Excess molar enthalpies and volumes were also measured at 298.15 K. Reduction of the vapour pressure data to obtain activity coeffi...

Isobaric vapour–liquid equilibrium (VLE) has been experimentally studied for the ternary mixture 2-butanol (1) + n-hexane (2) + 1-chlorobutane (3), at the pressure of 101.3 kPa. The activity coefficients were found to be thermodynamically consistent and they were satisfactorily correlated with ...

The (p,Vm,T) behaviour of (heptane + 1-chlorobutane) was measured at the temperatures (298.15, 308.15, 318.15, and 328.15) K and in the pressure range 0.1 to 40 MPa with an accuracy in density of ±1·10−4gcm−3. An apparatus for the (p,Vm,T) measurement of liquids and liquid mixtures whose main ...

Densities of the ternary system consist of 1-chlorobutane (1) + n-butylamine (2) + isobutanol (3) and related binary systems were measured at 298.15 K for the liquid region. Excess molar volumes, VmE, for the mixtures were derived and correlated as a function of the mole fraction by using the Re...

Isobaric vapour–liquid equilibrium (VLE) for the ternary mixture, 1-butanol (1)+n-hexane (2)+1-chlorobutane (3) and for the binary mixture, n-hexane (1)+1-chlorobutane (2) at 101.3 kPa has been experimentally studied. The activity coefficients were found to be thermodynamically consistent and w...

Experimental densities for the ternary mixtures x1 1-chlorobutane + x2 n-heptane + (1 − x1 − x2)2-butanone or 2-pentanone and five corresponding binary systems have been measured at T = (288.15, 303.15 and 313.15) K and atmospheric pressure, using a DMA 5000 Anton Paar densimeter. Excess molar v...

Limiting activity coefficients (γ1∞) were measured for 1-chlorobutane in water and in aqueous solutions of the additives 1-methylimidazole (MeIm), ionic liquid 1-butyl-3-methylimidazolium chloride (BMImCl), and sodium chloride (NaCl) at temperatures from 273.35 to 308.15 K and additive concent...

Isothermal (vapour + liquid) equilibrium data for the ternary mixtures 1-butanol + n-hexane + 1-chlorobutane and 2-butanol + n-hexane + 1-chlorobutane have been studied with a recirculating still at T = 298.15 K. The experimental data were satisfactorily checked for thermodynamic consistency usi...

Densities, speeds of sound and refractive indices for the binary mixture of dibutyl ether and 1-chlorobutane have been determined at atmospheric pressure and at the temperature range from 283.15 K to 313.15 K. Excess volumes, excess isentropic compressibilities and refractive index deviations ha...

We have performed the first “high-pressure” X-ray photoelectron spectroscopy (XPS) study on the palladium, hydrogen, and olefin (trans-2-pentene) system to gain better insight into the hydrogenation reaction. We report here data collected with the use of a Pd(111) single crystal and a polycrys...

A sample of isotactic poly-1-pentene has been synthesized by using a metallocene catalyst, and two specimens have been prepared displaying the most stable Form I of this polymer, reported to adopt a 31 helical conformation. The solid-state 13CNMR study of this helical form shows an exceptional s...

A thorough evaluation of the mechanical behavior exhibited by fast crystallized propylene-1-pentene copolymers, synthesized in a broad range of 1-pentene compositions, is here described. Different mechanical magnitudes derived from loading, creep and unloading processes in depth sensing indentat...

Ignition delay times of 1-pentene and n-pentane were measured using a shock tube at pressures from 0.12 MPa to 1.0 MPa, at equivalence ratios from 0.5 to 2.0 with 0.5% and 1.0% fuel concentrations, in the temperature range of 1040–1880 K. Correlations of 1-pentene and n-pentane ignition delay t...