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Aminimides XIII long chain aminimides and isocyanates
Author(s) -
Freis R. E.,
Grimm R. A.,
McKillip W. J.
Publication year - 1972
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02612639
Subject(s) - chemistry , organic chemistry , dimer , dehydration , thermochromism , stearic acid , distillation , butanediol , thermal decomposition , bromoform , oleic acid , polymer chemistry , chloroform , biochemistry , fermentation
Abstract Aminimides were prepared from esters of stearic, oleic, linoleic, phenylstearic, 9,10‐dihydroxystearic, ricinoleic and dimer acids. Thermolysis of the aminimides to isocyanates was carried out in a wiped film molecular still and by vacuum distillation of a bulk sample. The latter process is suitable only for small samples of the simple aminimides. Acyl N,N‐dimethylhydrazides, which are aminimide precursors, can generally be prepared by dehydration of carboxylic acid‐ unsym ‐dimethylhydrazine mixtures. Details of the preparation of dimer acid diisocyanate by this route are presented. Some information on the use of long chain aminimides as emulsifiers for halocarbon mixtures, e.g., bromoform‐water, is presented.