In this book of the refractive indices, nD, densities , and viscosities of binary mixtures of sulfolane +, n- butanol+, sec-butanol +, iso-butanol +, tert-butanol +, n-propanol and isopropanol at 298.15k.From experimental data, excess molar volume VE, excess molar refractivity DeltaR, excess molar viscosity E and excess molar Gibbs free energy of activation of viscous flow DeltaG*E were calculated.From n-propanol-sulfolane and iso-propanol-sulfolane mixtures showed negative AR, but for n-butanol-sulfolane, sec-butanol-sulfolane, iso-butanol-sulfolane and tert-butanol-sulfolane, DeltaR was...
In this book of the refractive indices, nD, densities , and viscosities of binary mixtures of sulfolane +, n- butanol+, sec-butanol +, iso-butanol ...
This book involves synthesis of a number of imidazole derivatives starting with Schiff bases. N-benzylidineareneamines (I) synthesized by condensation of primary aromatic amines with aromatic aldehydes in boiling ethanol. Benzene sulfonyl chloride reacts with these Schiff bases in dry benzene to give N-( -chloridbenzyl) benzene sulfonanilides (II). The later undergo a nucleophilic substitution reaction with thiourea in basic medium to give the corresponding iso-thiourea derivatives: -[N-aryl-N-benzenesulfonyl] aminobenzyl-iso-thiourease(III). These iso-thioureas(III) are condensed with...
This book involves synthesis of a number of imidazole derivatives starting with Schiff bases. N-benzylidineareneamines (I) synthesized by condensation...
Cet ouvrage porte sur la synthèse d'un certain nombre de dérivés de l'imidazole à partir de bases de Schiff. Les N-benzylidineareneamines (I) synthétisées par condensation d'amines aromatiques primaires avec des aldéhydes aromatiques dans l'éthanol bouillant. Le chlorure de benzène sulfonyle réagit avec ces bases de Schiff dans du benzène sec pour donner des N-( -chloridbenzyl) benzène sulfonanilides (II). Ces derniers subissent une réaction de substitution nucléophile avec la thiourée en milieu basique pour donner les dérivés iso-thiourée correspondants : ...
Cet ouvrage porte sur la synthèse d'un certain nombre de dérivés de l'imidazole à partir de bases de Schiff. Les N-benzylidineareneamines (I) synt...
In diesem Buch geht es um die Synthese einer Reihe von Imidazolderivaten ausgehend von Schiffschen Basen. N-Benzylidinarenamine (I) werden durch Kondensation von primären aromatischen Aminen mit aromatischen Aldehyden in siedendem Ethanol synthetisiert. Benzolsulfonylchlorid reagiert mit diesen Schiffschen Basen in trockenem Benzol zu N-( -Chloridbenzyl)benzolsulfonaniliden (II). Letztere gehen in basischem Medium eine nukleophile Substitutionsreaktion mit Thioharnstoff ein, wobei die entsprechenden Iso-Thioharnstoff-Derivate entstehen: ...
In diesem Buch geht es um die Synthese einer Reihe von Imidazolderivaten ausgehend von Schiffschen Basen. N-Benzylidinarenamine (I) werden durch Konde...
In this Book, four sets of blends were prepared and their mechanical properties (Impact strength, Hardness, and Bending) and dielectric behaviour were investigated. The blends were prepared by mixing different weight percentages of Epoxy, cellulose and modified unsaturated polyester (MUPE) of molecular weight equal to (2230) which takes place at curing temperatures ranging from 25-120°C. Impact strength values were determined by using the Charpy impact tester. The Brinell ball indentation method obtains the hardness values and the maximum load not exceeding 800N / mm2. A three-point...
In this Book, four sets of blends were prepared and their mechanical properties (Impact strength, Hardness, and Bending) and dielectric behaviour were...
