✦ LIBER ✦

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

✍ Scribed by Ronald A. Greinke

Publisher: Elsevier Science
Year: 1984
Tongue: English
Weight: 554 KB
Volume: 63
Category: Article
ISSN: 0016-2361
DOI: 10.1016/0016-2361(84)90340-5

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✦ Synopsis

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 1 H n.m.r. evaluation in a mixed solvent system consisting of S$&-SO,CI,.

AJthough 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.

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