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Start Over "H. Peters" Topic chemistry Publisher royal society of chemistry (rsc)
11 results on '"H. Peters"'

4. Equilibria in water–ethanol mixtures

Author

R. H. Peters, A. Johsnon, and J. R. Aspland

Subjects
Hydrolysis, chemistry.chemical_compound, Ethanol, Volume (thermodynamics), Chemistry, Organic Chemistry, Inorganic chemistry, Organic chemistry, Solvent composition, Physical and Theoretical Chemistry, Equilibrium constant
Abstract

The equilibrium constant K=[OEt–][H2O]/[OH–][EtOH] has been calculated for mixtures of water and ethanol containing up to 35% by volume of ethanol by measuring the simultaneous rates of hydrolysis and ethanolysis of various solutes. The values of K vary as the solvent composition is changed, and also from one solute to another.

Published
1967

8. The addition of amines to vinyl sulphones and sulphonamides

Author

T. P. Nevell, E. W. Hardisty, R. H. Peters, and W. G. Davies

Subjects
chemistry.chemical_classification, Steric effects, Primary (chemistry), Double bond, Tertiary amine, Formic acid, Organic Chemistry, Medicinal chemistry, chemistry.chemical_compound, chemistry, Molecule, Organic chemistry, Amine gas treating, Physical and Theoretical Chemistry, Bifunctional
Abstract

The uncatalysed addition of primary and secondary amines to vinyl sulphones and sulphonamides in polar aprotic solvents has been shown to be of the first order with respect to vinyl groups and of the second order with respect to amine. The reactions are retarded by the addition of a tertiary amine. A mechanism is suggested in which the initial step is the addition of the amine itself to the double bond to form a solvent-stabilised dipolar intermediate which then reacts with a second molecule of amine. The addition of secondary amines is much slower than that of primary, probably for steric reasons.Polymers with high intrinsic viscosities in 90% formic acid have been formed from bifunctional vinyl compounds and hexamethylene-1,6-diamine.

Published
1970

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