Synthesis of Sunflower Oil Based Elastomer and Its Characterization by Using Spectroscopic Techniques

Abstract

Summary A new elastomer was successfully materialized from sunflower oil (a vegetable oil). The reaction was confirmed by Fourier Transform Infrared (FTIR) and Fourier Transform Nuclear Magnetic Resonance (FTNMR) methods. FTIR analysis indicated that amine functional groups appear at 3325 cm−1 representing N‐H stretching of primary and secondary amines and at 1645 cm−1 representing N‐H deformation of primary amines. The hydrogen bonding was confirmed with the appearance a broad peak in the region 2500–3800 cm−1. FTNMR analysis also show the appearance amine functional groups at peak 5.4 ppm in 1H NMR representing proton in amine functional groups and peaks at 151 ppm and 156.6 ppm in 13C NMR representing carbon in amine functional groups.

Synthesis and Characterization of Biobased Epoxidized Edible Oils

“…Moreover, the intensity of the peaks (strong, medium, and weak) showed whether the formation of oxirane ring was abundant or not. Table 2 shows the assignment for most characteristic Infrared band of palm olein, rice bran oil, canola oil soybean oil and sunflower oil that was previously reported (Hashim et al, 2017;Irnawati et al, 2020;Purbaya et al, 2015;Setyaningrum et al, 2013;Shi et al, 2017). The data showed a typical characteristic of absorption peaks for common triglycerides in edible oils.…”

“…The bending vibrations of methyl (CH 3 ) and methylene (CH 2 ) groups are also reported in the range of n=1465 -1460 cm −1 and n=1378 -1376 cm −1 . Previous studies also reported the appearance of large peak at n=1747 -1743 cm −1 which corresponded to C=O double bond stretching vibration in triglyceride of all selected oils, together with stretching vibration peak of C-O in the region of n=1163 -1096 cm −1 (Hashim et al, 2017;Irnawati et al, 2020;Purbaya et al, 2015;Setyaningrum et al, 2013;Shi et al, 2017) .…”