Efficiency of Gold Nano Particles on the Autoxidized Soybean Oil Polymer: Fractionation and Structural Analysis

Abstract

Polyunsaturated plant oils have gained great interest as monomers to produce biodegradable polymers obtained from renewable resources due to the limited existing sources of petroleum oil and environmental issues. Soybean oil was autoxidized by exposure to atomospheric oxygen at room temperature with or without the presence of gold nanoparticles (Au NPs) 5-41 days. When the autoxidation process was catalyzed with Au NPs, the molecular weight of the oxidized oil was increased in 5 days. In contrast to this, without Au NPs, the oxidized oil was still a fluidized liquid. Autoxidized soybean oil polymer in toluene solution with gold NP showed a surface plasmon resonance at λ max = 540 nm in a UV-VIS spectrometer and a fluorescence emission spectrum at λ max = 450 nm, when it was irradiated at λ max = 390 nm. The higher molecular weight of the polymeric oils was successively fractionated by the extraction from the solvent-non-solvent mixture CHCl 3 / petroleum ether with the volume ratio of 5:15. Three polymeric oils fractions with different molecular weight (ca 1000, 4000, and 40,000 g/mol) were obtained. GC-MS analysis, 1 H-NMR and GPC techniques were used in the structural analysis of the fractionated polymeric oils.

Synthesis of PNIPAM–PEG Double Hydrophilic Polymers Using Oleic Acid Macro Peroxide Initiator

“…Autoxidation of oleic acid was performed according to the modified procedure reported in a recent work [13]. Briefly, 18 g of oleic acid was spread out onto a petri dish (Φ = 14.5 cm, oil thickness: 1.0 mm) and was exposed to daylight in the air at room temperature.…”

Novel Enzymatic Rhodium Modified Poly(styrene‐g‐oleic amide) Film Electrode for Hydrogen Peroxide Detection

“…Oleic acid polymerization was carried out according to the autoxidation procedure reported in a recent study [13]. 18 g of oleic acid was spread out into a petri dish and was exposed to daylight in the air at room temperature.…”

Novel bio-based epoxy-polyurethane materials from modified vegetable oils – synthesis and characterization

“…Moreover, application of renewable resources in their synthesis and modification is also of great interest, due to the growing ecological issues as well as economical and societal advantages [8,9]. Vegetable oils, which are biodegradable, renewable, non-toxic, environmentally benign and easily modified [10,11] have already found applications in the technology of epoxies as: additives, flexibilizers [12], and diluents [13], decreasing viscosity of epoxy resins or bio-alternatives for raw petrochemical materials in the process of their synthesis [14,15]. In a respect of functionality of vegetable oils, defined as content of unsaturated bonds and in the same time content of functional groups, which might be introduced in to the molecule, epoxidized derivatives of natural oils can be formally classified as epoxy resins.…”