Investigation of composition of pentaerythritol esters by means of chromatography/mass spectrometry

Journal Article · Sun Jan 01 04:00:00 EST 1984 · Chem. Technol. Fuels Oils (Engl. Transl.); (United States)

OSTI ID:6675258

Sosulina, L N; Nikonorov, E M; Skryabina, T G

This article reports on an investigation of the molecular mass and isomer composition of esters of pentaerythritol and C/sub 5/-C/sub 9/ synthetic fatty acids (SFA) by means of an R-10-10 chromatograph/ mass spectrometer. The chromatogram was recorded on the basis of the total ion flux (TIF), and the mass spectra of the homologues were recorded at the maximum of the chromatographic peak. The quantitative evaluations of the molecular mass composition of the tetraesters of pentaerythritol and fatty acids were performed by normalizing the peak areas on the chromatogram registered according to the TIF, and by normalizing the intensities of the maximum peaks in the mass spectra of the homologues. A comparison of the molecular mass composition of the two ester samples revealed that compounds with 20-30 carbon atoms in the molecule are represented in the composition, with corresponding molecular masses of 472-612. The esters present in greatest quantity have a 556 molecular mass. In order to identify the structure of the molecules of the higher homologues by means of the mass spectra, structures were established for the most prevalent isomers, and the absence of specific isomeric forms was proven.

• Research Organization: All-Union Sci-Res Inst. for Petroleum Processing
• OSTI ID: 6675258
• Journal Information: Chem. Technol. Fuels Oils (Engl. Transl.); (United States), Journal Name: Chem. Technol. Fuels Oils (Engl. Transl.); (United States) Vol. 19:5-6; ISSN CTFOA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ATOMS
CARBON
CARBOXYLIC ACIDS
CHEMICAL EXPLOSIVES
CHROMATOGRAPHY
COMPARATIVE EVALUATIONS
ELEMENTS
ESTERS
EXPLOSIVES
ISOMERS
MASS SPECTRA
MOLECULAR WEIGHT
NITRATES
NITRIC ACID ESTERS
NITROGEN COMPOUNDS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETN
QUANTITY RATIO
SEPARATION PROCESSES
SPECTRA
STRUCTURAL CHEMICAL ANALYSIS