Author： Xianfu L.
Publisher： Elsevier
ISSN： 0026-265X
Source： Microchemical Journal, Vol.53, Iss.1, 1996-01, pp. : 26-28
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Abstract
An FTIR method has been developed for quantitative analysis of the total branched chain ¯n methyl of ethylene/butyl acrylate/vinyl acetate tercopolymer. In this work, mixtures of atactic polypropylene and straight-chain alkane C 27 H 56 were chosen as model compounds and the 1378 cm -1 band of the methyl side group as the key band for determination of the number of branched chains of the tercopolymer. A calibration equation correlation coefficient of 0.995 was obtained as follows:n¯ methyl = 0.51 ( A 1376 / D · t ) - 1.02.¯n methyl of the tercopolymer can be determined by FTIR; the results are in agreement with those determined by 1 H NMR.
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