ISSN:
1573-9171
Keywords:
long-chain diacetylenic acids
;
N-pyridyl andN-pyrimidylamides of alkanediyni cacids
;
long-chain derivatives of nitroxyl radicals
;
synthesis
;
monolayers
;
Langmuir-Blodgett films
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract 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 from 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 of Langmuir-Blodgett films of these radicals before and after photopolymerization were recorded.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00707229
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