Russian Chemical Bulletin p. 1929 - 1932 (1995)
Update date:2022-08-25
Topics:
Usov, O. M.
Tret'yakov, E. V.
Sveshnikova, L. L.
Shvartsberg, M. S.
Acyl derivatives of 2-aminopyridine, 2-aminopyrimidine, 4-amino-2,2,6,6-tetramethylpiperidine-1-oxyl, and 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl were obtained form long-chain diacetylenic acyl chlorides and the corresponding heterocyclic compounds.Spreading isotherms of monolayers on a water surface show that lengthening of the hydrocarbon chain and replacement of the pyridyl groups in these compounds by the more hydrophilic pyrimidyl groups render the films more condensed.Long-chain acyl derivatives of nitroxyl radicals form monolayers possesing a low collapse pressure.ESR spectra on Langmuir-Blodgett films of these radicals before and after photopolymerization were recorded. - Keywords: long-chain diacetylenic acids, N-pyridyl and N-pyrimidylamides of alkanediynic acids, long-chain derivatives of nitroxyl radicals, synthesis, monolayers, Langmuir-Blodgett films
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