Synthesis, characterization and antibacterial activity of novel poly(silyl ether)s based on palm and soy oils

Abstract

In this research, palm oil and soy oil were used as a natural polyol to prepare novel poly(silyl ether)s. Palm oil and soy oil were first converted to monoglyceride by one step via alcoholysis process in the presence of 0.1% CaO as a catalyst. The monoglycerides were characterized by Fourier transform infrared spectrometer (FT-IR), nuclear magnetic resonance (NMR) and iodine test. The novel poly(silyl ether)s were prepared via polycondensation reaction between dimethyldichlorosilane with monoglycerides based on palm and soy oils, respectively. FT-IR, NMR and silicone-29 (29 Si NMR) were used to confirm and determine the presence of silicone in the synthesized polymers. Thermal behavior was studied by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Antibacterial activity of the polymers was screened against three different strains of bacteria, namely Escherichia coli E266, Staphylococcus aureus S276 and Salmonella choleeraesuis 10708.

The effect of mono‐diglycerides on the mechanical properties, microstructure, and physical stability of an edible rice bran wax–gelatin biphasic gel system

“…The broad peak at ~3370 cm −1 is associated with OH, NH stretching and hydrogen bonding. This peak can mostly be attributed to water molecules (Sagiri et al, 2015) and hydroxyl groups on gelatin amino acid residues and MDG (Mohammed et al, 2018). Peaks at ~2920 and ~2850 cm −1 are associated with CH stretching in RBW, soybean oil, and MDG (Ishaka et al, 2014; Mohammed et al, 2018; Wakhet et al, 2015).…”

The effect of mono-diglycerides on the mechanical properties, microstructure and physical stability of an edible rice bran wax -- gelatin biphasic gel system

“…The broad peak at ˜3370 cm -1 is associated with O-H, N-H stretching and hydrogen bonding. This peak can mostly be attributed to water molecules (Sagiri et al, 2015) and hydroxyl groups on gelatin amino acid residues and MDG (Mohammed et al, 2018). Peaks at ˜2920 cm -1 and ˜2850 cm -1 are associated with C-H stretching in RBW, soybean oil and MDG (Mohammed et al, 2018;Wakhet et al, 2015;Ishaka et al, 2014).…”

“…This peak can mostly be attributed to water molecules (Sagiri et al, 2015) and hydroxyl groups on gelatin amino acid residues and MDG (Mohammed et al, 2018). Peaks at ˜2920 cm -1 and ˜2850 cm -1 are associated with C-H stretching in RBW, soybean oil and MDG (Mohammed et al, 2018;Wakhet et al, 2015;Ishaka et al, 2014). Peaks ˜2100 cm -1 and ˜1635 cm -1 are associated with amino acid groups in gelatin and were confirmed by a spectrum of pure 7% (w/w) gelatin (not shown).…”

“…Peaks ˜2100 cm -1 and ˜1635 cm -1 are associated with amino acid groups in gelatin and were confirmed by a spectrum of pure 7% (w/w) gelatin (not shown). Peaks ˜1740 cm -1 and in the region of below 1600 cm -1 are associated with carbonyl groups stretching and C-H bending, respectively, in RBW, soybean oil and MDG (Mohammed et al, 2018;Wakhet et al, 2015;Ishaka et al, 2014).…”

Boron Nitride Doped Polyhydroxyalkanoate/Chitosan Nanocomposite for Antibacterial and Biological Applications

“…Currently bio-based polymers are of great interest in biomedical research due to their inherent characteristics [14,15,16]. Biopolymers have been explored to achieve systemic improved therapeutics such as sustained drug release, even drug distribution, and set period degradation [17].…”