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Aluminium oxide 90

Manufactured by Merck Group
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Aluminium oxide 90 is a laboratory material used as a stationary phase in column chromatography. It is a fine white powder composed of aluminum oxide (Al2O3). Aluminium oxide 90 is commonly used for the purification and separation of organic compounds.

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Lab products found in correlation

Lithium hydroxide, by Merck Group (2 mentions) 1 iodododecane, by Merck Group (2 mentions) 4 vinylpyridine, by Merck Group (2 mentions) Iodomethane, by Merck Group (2 mentions) Methyl methacrylate, by Merck Group (2 mentions) Poly ethylene glycol methacrylate, by Merck Group (2 mentions) Aluminium oxide 60, by Merck Group (1 mentions) Gct premier, by Waters Corporation (1 mentions) Aluminium oxide 60 f254, by Merck Group (1 mentions) Alpha platinum atr ftir spectrometer, by Bruker (1 mentions) Silica gel 60 f254, by Merck Group (1 mentions) Silica gel 60, by Merck Group (1 mentions) 3 acrylamidopropyl trimethylammonium chloride solution, by Merck Group (1 mentions)

3 protocols using aluminium oxide 90

1

Multiwalled Carbon Nanotube Functionalization

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MWNTs (diameter 12.1 nm, s.d. 3.7 nm), synthesised by CVD, were obtained from Arkema SA (Lacq-Mourenx, France). Methyl methacrylate (MMA, > 98.5%), 4-vinyl pyridine (4-VP, 95%), poly(ethylene glycol) methacrylate (PEGMA, average Mn = 530), 1-iodododecane (IDD, 98%), iodomethane (IMe, ≥ 99%), and lithium hydroxide (LiOH, 98%) were purchased from Sigma-Aldrich for MWNTs functionalisation. Before use, all chemicals were passed through a chromatographic column consisting of neutral and basic aluminium oxide powders (aluminium oxide 90 (0.063–0.200 mm), activity stage I for column chromatography, Merck Millipore, Germany) and further degassed by bubbling N2 gas for 30 minutes, in order to remove radical inhibitors and oxygen.
Chen S., Hu S., Smith E.F., Ruenraroengsak P., Thorley A.J., Menzel R., Goode A.E., Ryan M.P., Tetley T.D., Porter A.E, & Shaffer M.S. (2014). Aqueous cationic, anionic and non-ionic multi-walled carbon nanotubes, functionalised with minimal framework damage, for biomedical application. Biomaterials, 35(17), 4729-4738.
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2

Spectroscopic Characterization of Pyrimidine Compounds

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IR spectra were recorded using a Bruker Alpha Platinum ATR FTIR spectrometer; frequencies are reported in cm−1. NMR spectra: Varian Unity Inova 400 (298 K) 5 mm tubes, TMS as internal standard; 1H NMR (400 MHz) and 13C NMR (100 MHz) spectra are reported in ppm; 1H- and 13C-resonances were assigned using 1H,1H-; and 1H,13C-correlation spectra and are numbered as given in the formulas. Signal multiplicities are abbreviated as follows: br broad, d doublet, dd doublet of doublets, ddd doublet of doublet of doublets, m multiplet, s singlet, t triplet, td triplet of doublets; resonances marked with a single quote belong to the pyrimidine substituent of the compounds (Scheme 1). HRMS: GCT-Premier, Waters (EI, 70 eV). Materials: column chromatography (CC): aluminium oxide 90 (neutral, Merck, Rahway, NJ, USA), aluminium oxide 60 (pH: 9.5, Merck), silica gel 60 (Merck 70–230 mesh, pore-diameter 60 Å), thin-layer chromatography (TLC): TLC plates silica gel 60 F254 (Merck), aluminium oxide 60 F254 (neutral, Merck).
Hinteregger C., Dolensky J., Seebacher W., Saf R., Mäser P., Kaiser M, & Weis R. (2022). Synthesis and Antiprotozoal Activity of Azabicyclo-Nonane Pyrimidine Hybrids. Molecules, 28(1), 307.
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3

Functionalization of Carbon Nanomaterials

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MWCNTs (diameter 12.1 nm, s.d. 3.7 nm), synthesised by CVD, were obtained from Arkema SA (Lacq-Mourenx, France). Carbon black nanoparticles (Printex 90, primary particle diameter 21.1 nm, s.d. 6.2 nm) were provided by Degussa-Hüls (Frankfurt, Germany). Potassium 3-(methacryloyloxy)propane-1-sulfonate (SPMAK, 98%), (3-acrylamidopropyl)trimethylammonium chloride solution (75% in H2O), methyl methacrylate (MMA, > 98.5%), 4-vinyl pyridine (4-VP, 95%), poly(ethylene glycol) methacrylate (PEGMA, average Mn = 530), 1-iodododecane (IDD, 98%), iodomethane (IMe, ≥ 99%), and lithium hydroxide (LiOH, 98%) were purchased from Sigma-Aldrich for CNM functionalisation. Before use, all liquid monomer chemicals were passed through a chromatographic column consisting of neutral and basic aluminium oxide powders (aluminium oxide 90 (0.063–0.200 mm), activity stage I for column chromatography, Merck Millipore, Germany) and further degassed by bubbling N2 gas for at least 30 minutes, in order to remove any radical inhibitors and oxygen.
Hu S., Chen S., Menzel R., Goode A.D., Ryan M.P., Porter A.E, & Shaffer M.S. (2014). Aqueous dispersions of oligomer-grafted carbon nanomaterials with controlled surface charge and minimal framework damage. Faraday discussions, 173, 273-285.
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