Mesophase development in coal-tar pitch modified with various polymers

Carbonization behavior of coal-tar pitch modified with divinylbenzene and optical texture of resultant semi-cokes

“…However, the modification of coal-tar pitch with DVB clearly improves the development of anisotropy on carbonization. Machnikowski et al [14,15] have reported the mesophase improvement in coal-tar pitch modified with some polymers. Mora et al [16] have studied the blend of the impregnating coal-tar pitch with a petroleum pitch.…”

“…A possible reason for this behavior could be the concentration of primary QI promoted by the micro fibers shown in Fig. 1b and c, and the concentration of QI would result in the notable improvement of optical textures of semi-cokes [14,18].…”

Mechanism of co-pyrolysis of coal-tar pitch with polyvinylpyridine

“…Second remarkable effect of the blending is a decrease in the temperature of maximum weight loss by about 20 • C as compared to the both calculated and single polymer values. The possible explanation is that the pitch as a specific, high-boiling mixed solvent, capable of dissolution of many polymers [29] reduces the thermal stability of PVP, thus lowering the depolymerization temperature. The thermogram of CTP-PVPox blend (Fig.…”

Co-treatment of novolac- and resole-type phenolic resins with coal-tar pitch for porous carbons

“…The general interest in the blending of polymer and pitch is due to specific interactions frequently associated with this co-treatment [16][17][18][19][20]. Hence, aspects which received special attention in this study were the monitoring of possible synergistic effects on the co-pyrolysis and the evaluation of the resultant chars for their ability to porosity development on activation.…”