Sorption of pure methane, carbon dioxide and their binary mixtures in two glassy polymers, poly(1-trimethylsilyl-1-propyne) (PTMSP), and the first polymer of intrinsic microporosity (PIM-1), has been studied experimentally and theoretically, at 35.0 ºC. Measurements were obtained on a newly designed pressure decay sorption apparatus which allowed to measure sorption isotherms at constant partial pressure of one component of the gas mixture. Results indicate the presence of a competition for available polymer matrix sites, which is not surprising due to the nature of physical sorption in glassy matrices.
O Vopicka, MG De Angelis, GC Sarti, Du, Li, MD Guiver (2012). [P1.037] Sorption of CO2/CH4 mixtures in PIM-1 and PTMSP membranes. PROCEDIA ENGINEERING, 44, 758-759 [10.1016/j.proeng.2012.08.559].
[P1.037] Sorption of CO2/CH4 mixtures in PIM-1 and PTMSP membranes
DE ANGELIS, MARIA GRAZIA;SARTI, GIULIO CESARE;
2012
Abstract
Sorption of pure methane, carbon dioxide and their binary mixtures in two glassy polymers, poly(1-trimethylsilyl-1-propyne) (PTMSP), and the first polymer of intrinsic microporosity (PIM-1), has been studied experimentally and theoretically, at 35.0 ºC. Measurements were obtained on a newly designed pressure decay sorption apparatus which allowed to measure sorption isotherms at constant partial pressure of one component of the gas mixture. Results indicate the presence of a competition for available polymer matrix sites, which is not surprising due to the nature of physical sorption in glassy matrices.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
