| 1. |
- Kutcherov, Vladimir, et al.
(författare)
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Phase and glass transitions in crude oils and their fractions at high pressure
- 1996
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Ingår i: High pressure science and technology. - : World Scientific. - 9810225474 ; , s. 924-926
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Konferensbidrag (refereegranskat)abstract
- Phase and glass transitions in crude oils and their fractions were detected at high pressures (up to 2 GPa) and different temperatures, both in isobaric and isothermal measurements, using transient hot-wire method and DSC. Glass transition point is found to be independent on wax, asphaltene and pitches content. Its position changes on boiling out different components of light fraction, showing strong dependence on boiling temperature.
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| 2. |
- Persson, P-A, et al.
(författare)
-
Physical properties of pressure polymerized C60
- 1995
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Ingår i: High Pressure Science and Technology. - Singapore : World Scientific and Engineering Academy and Society. - 9810225474 ; , s. 716-718
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Konferensbidrag (refereegranskat)
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| 3. |
- Persson, Per-Axel, et al.
(författare)
-
Physical properties of pressure polymerized C60
- 1996
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Ingår i: High Pressure Science and Technology. - Singapore : World Scientific. - 9810225474 ; , s. 716-718
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Konferensbidrag (refereegranskat)abstract
- The properties of C60 have been studied after treatment at high temperature and high pressure (1.1 GPa and 565 K for 2 h). The treated material is insoluble in organic solvents. We present results obtained in NMR and Raman studies and measured data for the specific heat and the thermal expansion. Our results show clearly that there are no covalent bonds and no molecular rotation, but suggest that the molecules are slightly deformed and held together by weak pi-type bonds.
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| 4. |
- Sundqvist, Bertil, et al.
(författare)
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Fullerenes under pressure : Structure, order, and disorder
- 1996
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Ingår i: High Pressure Science and Technology. - Singapore : World Scientific. - 9810225474 ; , s. 697-701
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Konferensbidrag (refereegranskat)abstract
- The weak intermolecular interactions in solid C60 and other fullerenes make crystal structures and other properties very sensitive to applied pressure. We review recent results on the properties and phases of fullerenes under pressure, concentrating on the low-p range up to about 1 GPa. Subjects discussed include compression and transport studies, orientational and rotational disorder, the glassy crystal transition, and pressure-induced polymerization.
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