Reciprocal influence of crystallization and vitrification processes in complex hydrocarbon systems
2006 (English)In: Chemistry and technology of fuels and oils, ISSN 0009-3092, E-ISSN 1573-8310, Vol. 42, no 3, 206-210 p.Article in journal (Refereed) Published
The reciprocal influence of crystallization and vitrification processes in complex hydrocarbon systems was analyzed. These systems consist of a high-molecular-weight amorphous matrix in which easily crystallized components of different molecular weight and composition are dissolved. It was shown that the invariability of the position of the glass transition line indicates that the hydrocarbon matrix of the system does not change when waxes, asphaltenes, and resins are extracted. The presence and composition of the crystalline clusters in the hydrocarbon matrix do not affect the glass transition process. Calorimetric studies of the model system at atmospheric pressure in the 130-370 K temperature range were conducted. The measurements confirmed the existence of the crystallization process in a narrow temperature range and the absence of the glass transition process. The results also show that the appearance of crystallization does not affect the glass transition process.
Place, publisher, year, edition, pages
2006. Vol. 42, no 3, 206-210 p.
IdentifiersURN: urn:nbn:se:kth:diva-70299DOI: 10.1007/s10553-006-0058-3ISI: 000240075000010OAI: oai:DiVA.org:kth-70299DiVA: diva2:486181
QC 201202032012-01-302012-01-302012-02-03Bibliographically approved