1H n.m.r. technique for characterization of polymerized petroleum pitches

A new proton n.m.r. technique has been developed for the chemical characterization of polymerized petroleum pitches with pyridine-insoluble contents as high as 80%. The polymerized pitches were completely solubilized for conventional 1H n.m.r. evaluation in a mixed solvent system consisting of S 2Cl...

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Bibliographic Details
Published in:Fuel (Guildford) 1984-10, Vol.63 (10), p.1374-1377
Main Author: Greinke, Ronald A.
Format: Article
Language:English
Subjects:
Applied sciences
Crude oil, natural gas and petroleum products
Energy
Exact sciences and technology
Fuels
instrumental methods of analysis
n.m.r
petroleum pitch
Petroleum products, gas and fuels. Motor fuels, lubricants and asphalts
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Summary:A new proton n.m.r. technique has been developed for the chemical characterization of polymerized petroleum pitches with pyridine-insoluble contents as high as 80%. The polymerized pitches were completely solubilized for conventional 1H n.m.r. evaluation in a mixed solvent system consisting of S 2Cl 2-SO 2Cl 2. Although solubilization occurs via the addition of chlorine to the polynuclear aromatic rings, the n.m.r. spectra can still be quantitatively interpreted. Several applications are discussed.
ISSN:0016-2361
1873-7153
DOI:10.1016/0016-2361(84)90340-5