Evidence for fractal dimension in asphaltene polymers from electron-spin-relaxation measurements

✍ Scribed by P. Raghunathan

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 432 KB
• Volume: 182
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(91)80224-l

✦ Synopsis

Measurements of low-temperature electron spin-lattice relaxation of VO*+ centres are reported in five gel-permeation-chromatographic fractions of Athabasca asphaltene polymer. Best tits of the experimental relaxation rate data to a T" power law lead to Hausdorff fractal dimensions (df) in the range 1.65-2.0. These fractal values are interpreted in terms of plausible models of polymer structure.