Polymers with intrinsic microporosity (PIMs) constitute a new class of glassy high free volume polymers. Repetitive combination of contortion site {A}, which produces sharp bends in polymer chain, with a rigid ladder-like polymer backbone {B} provides randomly contorted structure of polymer chain [1]. Such molecular arrangement leads to highly interconnected system of free volume elements which gives to material unique microporous character. Generally, PIMs possess good thermal and chemical stability and exhibit outstanding gas and vapour sorption properties [2]. Their high permeability together with moderate selectivity towards several gas pairs shifts PIMs above the Robeson upper bound [3, 4]. In this work, gas and vapour permeation and sorption properties of PIM-1 and its five structure modifications (via substitution of A, B or C parts) were studied. Sorption experiments were performed gravimetrically in wide range of temperature and pressure. References [1]Budd, P.M.; McKeown, N.B., Polym. Chem. 2010, 1, 63-68. [2] Vopi?ka, O., Friess, K., et al., J. Membr. Sci. 2013, 434, 148-160. [3]Bernardo, P.; Drioli, E.; Golemme, G., Ind. Eng. Chem. Res. 2009, 48, 4638-4663. [4]Robeson, L.M., J. Membr. Sci. 2008, 320, 390-400.
Gas sorption in polymers with intrinsic microporosity (PIMs)
JC Jansen;P Bernardo;G Clarizia;
2014
Abstract
Polymers with intrinsic microporosity (PIMs) constitute a new class of glassy high free volume polymers. Repetitive combination of contortion site {A}, which produces sharp bends in polymer chain, with a rigid ladder-like polymer backbone {B} provides randomly contorted structure of polymer chain [1]. Such molecular arrangement leads to highly interconnected system of free volume elements which gives to material unique microporous character. Generally, PIMs possess good thermal and chemical stability and exhibit outstanding gas and vapour sorption properties [2]. Their high permeability together with moderate selectivity towards several gas pairs shifts PIMs above the Robeson upper bound [3, 4]. In this work, gas and vapour permeation and sorption properties of PIM-1 and its five structure modifications (via substitution of A, B or C parts) were studied. Sorption experiments were performed gravimetrically in wide range of temperature and pressure. References [1]Budd, P.M.; McKeown, N.B., Polym. Chem. 2010, 1, 63-68. [2] Vopi?ka, O., Friess, K., et al., J. Membr. Sci. 2013, 434, 148-160. [3]Bernardo, P.; Drioli, E.; Golemme, G., Ind. Eng. Chem. Res. 2009, 48, 4638-4663. [4]Robeson, L.M., J. Membr. Sci. 2008, 320, 390-400.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
