Gas separation, free volume distribution, and physical aging of a highly microporous spirobisindane polymer

被引：186

作者：

Staiger, Chad L. ^{[1
]}

Pas, Steven J. ^{[2
,3
,4
]}

Hill, Anita J. ^{[2
,3
,4
]}

Cornelius, Chris J. ^{[1
]}

机构：

[1] Sandia Natl Labs, Fuels & Energy Transit Dept, Albuquerque, NM 87185 USA

[2] CSIRO Mat Sci & Engn, Clayton, Vic 3169, Australia

[3] Monash Univ, ARC Ctr Electromat Sci, Dept Mat Engn, Clayton, Vic 3800, Australia

[4] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia

来源：

CHEMISTRY OF MATERIALS | 2008年 / 20卷 / 08期

关键词：

D O I：

10.1021/cm071722t

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The results from the first direct measurement of the pore size distribution and physical aging of a highly microporous spirobisindane polymer were derived using positron annihilation lifetime spectroscopy (PALS) and the results were compared with high free volume glassy polymers. The spirobisindane polymer shows a high carbon dioxide permeability while a reduction in permeability is observed in glassy polymer with increasing feed pressure of the gas. The spirobisindane polymer is found to have larger small pores and smaller large pores in comparison to PTMSP. The fractional free volume calculated for the spirobisindane polymer is more like the values commonly obtained for polysulfone and polyimide membranes. The PALS results indicate that solvent processing increases the microporosity of the processed spirobisindane polymer from the intrinsic microporosity of its powder.

引用

页码：2606 / 2608

页数：3

共 23 条

[1] VAN DER WAALS VOLUMES + RADII [J].

BONDI, A .

JOURNAL OF PHYSICAL CHEMISTRY, 1964, 68 (03) :441-+

[2]

BRECK WD, 1974, ZEOLITE MOL SIEVES, P636

[3] Free volume and intrinsic microporosity in polymers [J].

Budd, PM ;

McKeown, NB ;

Fritsch, D .

JOURNAL OF MATERIALS CHEMISTRY, 2005, 15 (20) :1977-1986

[4] Gas separation membranes from polymers of intrinsic microporosity [J].

Budd, PM ;

Msayib, KJ ;

Tattershall, CE ;

Ghanem, BS ;

Reynolds, KJ ;

McKeown, NB ;

Fritsch, D .

JOURNAL OF MEMBRANE SCIENCE, 2005, 251 (1-2) :263-269

[5] Polymers of intrinsic microporosity (PIMs): robust, solution-processable, organic nanoporous materials [J].

Budd, PM ;

Ghanem, BS ;

Makhseed, S ;

McKeown, NB ;

Msayib, KJ ;

Tattershall, CE .

CHEMICAL COMMUNICATIONS, 2004, (02) :230-231

[6] Solution-processed, organophilic membrane derived from a polymer of intrinsic microporosity [J].

Budd, PM ;

Elabas, ES ;

Ghanem, BS ;

Makhseed, S ;

McKeown, NB ;

Msayib, KJ ;

Tattershall, CE ;

Wang, D .

ADVANCED MATERIALS, 2004, 16 (05) :456-+

[7]

DILLEN T, 2004, MATER TODAY, V7, P40

[8] THE TEMPERATURE-DEPENDENCE OF POSITRON LIFETIMES IN SOLID PIVALIC ACID [J].

ELDRUP, M ;

LIGHTBODY, D ;

SHERWOOD, JN .

CHEMICAL PHYSICS, 1981, 63 (1-2) :51-58

[9]

Felder R.M., 1980, METHODS EXPT PHYSICS, V16, P315, DOI [10.1016/S0076-695X(08)60536-0, DOI 10.1016/S0076-695X(08)60536-0]

[10] Basis of permeability/selectivity tradeoff relations in polymeric gas separation membranes [J].

Freeman, BD .

MACROMOLECULES, 1999, 32 (02) :375-380

← 1 2 3 →