Nuclear magnetic resonance spectra of organic peroxides

Swern, Daniel; Clements, A. H.; Luong, T. M.

doi:10.1021/ac60272a038

Cited by 41 publications

(17 citation statements)

References 13 publications

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“…Figure 5 shows the 1 H-NMR spectra of the first and second fractions of an oxidized soya polymer sample, PSyox-30.5-I (#54) and PSbox-30.5-II (#50), respectively. The first fraction of the PSbox sample has typically a -OOH signal at 8.0 ppm which is a good agreement with the data reported in the cited literature [60].…”

Section: Gc-ms Analysissupporting

confidence: 92%

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

Hazer

Akyol

2015

J Americ Oil Chem Soc

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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.

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Section: Gc-ms Analysissupporting

confidence: 92%

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

Hazer

Akyol

2015

J Americ Oil Chem Soc

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“…Typical of HTO is the signal of the OOOH proton at d*13 in the 1 H NMR spectra, the position of the signal being virtually independent of the nature of ROOOH. 13 ± 17, 19 ± 21, 23 ± 30, 33, 34, 36, 37 In the series ROH ± ROOH ± ROOOH, the chemical shift of H increases from d 0.5 ± 5.5 for ROH to d 7.6 ± 9.2 for ROOH 93 and d 12 ± 14 for ROOOH. Unlike alcohols and hydroperoxides, 93 dilution of HTO solutions has little effect on the chemical shift of the trioxide proton.…”

Section: Spectroscopic Studies a Uv Ir And Raman Spectramentioning

confidence: 98%

Organic hydrotrioxides

Шерешовец¹,

Хурсан²,

Комиссаров³

et al. 2001

Russ. Chem. Rev.

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“…The reference spectra contained the characteristic broad downshied peak of a hydroperoxide that readily underwent deuterium exchange. 46 Aer subjecting 3p to our standard conditions, the formation of 2p was observed by TLC within ve minutes. In half an hour, 2p was formed in 88% yield (Scheme 16, eqn (2)).…”

Section: Hydroperoxide Intermediatementioning

confidence: 99%