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Determination of the composition of ethylene–propylene–rubbers using 13 C‐NMR spectroscopy
Author(s) -
Di Martino S.,
Kelchtermans M.
Publication year - 1995
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.1995.070561308
Subject(s) - ethylene , composition (language) , ethylene propylene rubber , calibration , materials science , spectroscopy , chemical composition , nuclear magnetic resonance spectroscopy , analytical chemistry (journal) , infrared spectroscopy , polymer chemistry , polymer science , chemistry , organic chemistry , physics , composite material , copolymer , polymer , philosophy , linguistics , catalysis , quantum mechanics
A detailed 13 C‐NMR procedure has been developed to analyze ethylene–propylene–rubbers (EPM). Special attention has been paid to instrumental and spectral parameters and calculation methods. By applying this procedure, it is possible to obtain consistent and reproducible molecular composition results on EPM, independent of the measuring laboratory and the calculation method. The procedure has been tested in eight industrial laboratories. Using this procedure, the composition of a set of 10 EPM standards has been defined. These standards will be used for worldwide infrared calibration purposes (ASTM D‐3900). © 1995 John Wiley & Sons, Inc.