The glass transition temperatures, Tg, of coal samples with a wide range of carbon content were determined by differential scanning calorimetry of untreated and pyridine-extracted coal particles. Their values varied from 580 to 632 K depending on the coal structure studied. During dynamic pyridine transport in coal samples, the value of Tg decreased as a function of solvent weight fraction. These results indicate a coal network structure behaving similarly to that of cross-linked synthetic polymer networks.

No abstract

No abstract

No abstract

Abstract