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A large panel of Natural Rubber (NR) samples was characterized using Fourier Transform Infrared (FT-IR) spectroscopy in Attenuated Total Reflection (ATR) configuration. Specific vibrational bands were attributed to some non-isoprene compounds naturally present in NR composition. A rapid and non-destructive method was developed to investigate some specific functional groups contained in lipids (ester...
Isoprene units in natural rubber (NR) and its synthetic analogues were quantified by 1 H-NMR spectroscopy using polyethylene glycol (PEG) as an internal standard. The effect of PEG and rubber concentrations, molar ratio of rubber/PEG, measuring temperature and scan number on the quantification was investigated to establish the respective working range. Analysis of commercial grades of NR revealed...
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