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Intramolecular relaxation of phenyl-alkyl ketones

✍ Scribed by M.A. Mazid; S. Walker; N.A. Weir

Publisher
Elsevier Science
Year
1981
Weight
552 KB
Volume
19
Category
Article
ISSN
0378-4487

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✦ Synopsis

Dielectric absorption studies have been made (with one exception) in the ranges ED-280K and IO*-IO5 Hz of eight ketones of the type C6H5COR where R is varied from CH3 to C10H2, in a polystyrene matrix. An intramolecular relaxation process has been found in each case with an enthalpy of activation of the same order of magnitude as that for acetyl group relaxation in acetophenone, 4-acetylbiphenyl and 1,4-diacetylbenzene. Feasible intramolecular relaxation processes have been considered.

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