Polymorphism in the higher normal fatty acids: Differential thermal analysis and infrared absorption spectra

1960 ◽  
Vol 1 (2) ◽  
pp. 134-137 ◽  
Author(s):  
L. B. Arutyunova
Keyword(s):  
Thermal Analysis ◽  
Fatty Acids ◽  
Differential Thermal Analysis ◽  
Absorption Spectra ◽  
Infrared Absorption ◽  
Infrared Absorption Spectra

scholarly journals Studies on Chitin VI. The Nature of ?- and ?-Chitins

1965 ◽  
Vol 18 (4) ◽  
pp. 935 ◽  
Author(s):  
RH Hackman ◽  
Mary Goldberg
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Absorption Spectra ◽  
Crystalline Structure ◽  
Infrared Absorption ◽  
Free Amino ◽  
Crystalline Form ◽  
Amino Groups ◽  
Enzymic Digestion ◽  
Infrared Absorption Spectra

Enzymic digestion, acidic hydrolysis, deuterium exchange, infrared absorption spectra, and differential thermal analysis of chitins show that not only do the structures of <x- and ~-chitins differ but that differences occur within the <x-chitins and within the ~-chitins. The crystalline structure within an <x-chitin varies and about 30% of the chitin is in a highly crystalline form. ~-Chitins prepared from cuttlefish shell and squid pen contain significant amounts of free amino groups, on average one residue in five and two residues in five respectively being unacetylated. The free amino groups are in the less highly organized parts of the structure. The structures of the chitins and their associations with proteins are discussed.

scholarly journals The Infrared Absorption Spectra of Some Mono-unsaturated and Saturated Fatty Acids and Esters.

1960 ◽  
Vol 14 ◽  
pp. 1867-1878 ◽  
Author(s):  
Aage Jart ◽  
Liem Djiet Hay ◽  
Thor A. Bak ◽  
Susanne Refn ◽  
Gertrud Westin
Keyword(s):  
Fatty Acids ◽  
Absorption Spectra ◽  
Infrared Absorption ◽  
Saturated Fatty Acids ◽  
Infrared Absorption Spectra

Infrared Absorption Spectra of Branched-Chain Fatty Acids

1956 ◽  
Vol 28 (7) ◽  
pp. 1194-1195 ◽  
Author(s):  
D. L. Guertin ◽  
S. E. Wiberley ◽  
W. H. Bauer ◽  
Jerome. Goldenson
Keyword(s):  
Fatty Acids ◽  
Absorption Spectra ◽  
Infrared Absorption ◽  
Branched Chain Fatty Acids ◽  
Infrared Absorption Spectra ◽  
Branched Chain ◽  
Chain Fatty Acids

The Infrared Absorption Spectra of Unsaturated Fatty Acids and Esters1

1952 ◽  
Vol 74 (10) ◽  
pp. 2578-2585 ◽  
Author(s):  
R. G. Sinclair ◽  
A. F. McKay ◽  
G. S. Myers ◽  
R. Norman Jones
Keyword(s):  
Fatty Acids ◽  
Absorption Spectra ◽  
Infrared Absorption ◽  
Unsaturated Fatty Acids ◽  
Infrared Absorption Spectra

Infrared absorption spectra of ethanolamides of fatty acids

1967 ◽  
Vol 6 (2) ◽  
pp. 180-181
Author(s):  
I. A. Kozlov ◽  
I. K. Shelomov ◽  
O. A. Osipov
Keyword(s):  
Fatty Acids ◽  
Absorption Spectra ◽  
Infrared Absorption ◽  
Infrared Absorption Spectra
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