High Resolution Solid-13C-NMR-Spectroscopy of Elastomers.

被引：0
|
作者：
Gross, D. [1 ]
Kelm, J. [1 ]
机构：
[1] Bundesanstalt fuer Materialpruefung,, Fachguippe Sonderpruefungen fuer, Organische Stoffe, Berlin, West Ger, Bundesanstalt fuer Materialpruefung, Fachguippe Sonderpruefungen fuer Organische Stoffe, Berlin, We
来源：
Kautschuk und Gummi, Kunststoffe | 1985年 / 38卷 / 12期
关键词：
NUCLEAR MAGNETIC RESONANCE - POLYMERS - Fillers - RUBBER - Spectroscopic Analysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Though line broadening occurs in solids, **1**3C-NMR resolution is sufficient to identify elastomers of one or two raw rubbers, e. g. CR/NR, CR/CSM, NR/CSM. Analysis of ternary blended NR/SBR/BR is discussed. Fillers including carbon black, accelerators and antioxidants do not interfere, however, greater amounts of plasticizers have to be extracted. Swelling in 1,1,2,2-tetrachloroethane reduces the linewidth and increases the information. The type of NBR can be determined by identifying the sequences of acrylonitrile and butadiene. The crosslink density of ebonite is too high so that distinct resonances are not resolved. The study of swollen intermediate samples revealed the formation of trans-structures.
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页码：1089 / 1092
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