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The application of infrared microimaging for the determination of the distribution, penetration depth, and diffusion profile of methyl centralite and dibutyl phthalate deterrents in nitrocellulose monoperforated propellant
Author(s) -
Louden J. D.,
Duncan I. A.,
Kelly J.,
Speirs R. M.
Publication year - 1993
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1993.070490209
Subject(s) - dibutyl phthalate , nitrocellulose , overtone , chemistry , analytical chemistry (journal) , penetration (warfare) , infrared , absorbance , phthalate , propellant , diffusion , chromatography , optics , organic chemistry , spectral line , operations research , membrane , biochemistry , physics , astronomy , engineering , thermodynamics
Infrared microspectroscopy was used to determine quantitatively and qualitatively methyl centralite (MC) and dibutyl phthalate (DBP) diffusion profiles in cross sections of nitro‐cellulose‐based monoperforated propellant grains. The absorbance values of the CO peak of DBP at 1717 cm −1 and the aromatic CC peak of MC at 1496 cm −1 were measured relative to the NO 2 overtone peak of the nitrocellulose at 2555 cm −1 at 10 μm intervals from the outside edge inward (external profile) and the perforation edge inward (internal profile). Infrared microimaging was used to determine the distribution and penetration depth of the DBP and MC using the CO peak of DBP at 1717 cm −1 and the aromatic CC peak of MC at 1496 cm −1 as diagnostic of the two deterrents to obtain the contour and axonometric displays of the distribution. © 1993 John Wiley & Sons, Inc.