Hydrocarbon ladder polymers with ultrahigh permselectivity for membrane gas separations

被引：129

作者：

Lai, Holden W. H. ^{[1
]}

Benedetti, Francesco M. ^{[2
,4
]}

Ahn, Jun Myun ^{[1
,4
]}

Robinson, Ashley M. ^{[1
,5
]}

Wang, Yingge ^{[3
]}

Pinnau, Ingo ^{[3
]}

Smith, Zachary P. ^{[2
]}

Xia, Yan ^{[1
]}

机构：

[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

[2] MIT, Dept Chem Engn, Cambridge, MA 02139 USA

[3] King Abdullah Univ Sci & Technol KAUST, Adv Membranes & Porous Mat Ctr, Div Phys Sci & Engn, Chem Engn Program, Thuwal 23955-6900, Thuwal 239556900, Saudi Arabia

[4] Osmoses Inc, 501 Massachusetts Ave, Cambridge, MA 02139 USA

[5] Vertex Pharmaceut Inc, 50 Northern Ave, Boston, MA 02210 USA

来源：

SCIENCE | 2022年 / 375卷 / 6587期

基金：

美国国家科学基金会;

关键词：

INTRINSIC MICROPOROSITY; CHAIN-PACKING; UPPER-BOUNDS; TRANSPORT; PLASTICIZATION; PERMEATION; CO2/CH4; MODEL; DIFFUSION;

D O I：

10.1126/science.abl7163

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Membranes have the potential to substantially reduce energy consumption of industrial chemical separations, but their implementation has been limited owing to a performance upper bound-the trade-off between permeability and selectivity. Although recent developments of highly permeable polymer membranes have advanced the upper bounds for various gas pairs, these polymers typically exhibit limited selectivity. We report a class of hydrocarbon ladder polymers that can achieve both high selectivity and high permeability in membrane separations for many industrially relevant gas mixtures. Additionally, their corresponding films exhibit desirable mechanical and thermal properties. Tuning of the ladder polymer backbone configuration was found to have a profound effect on separation performance and aging behavior.

引用

页码：1390 / +

页数：50

共 36 条

[1] The synthesis, chain-packing simulation and long-term gas permeability of highly selective spirobifluorene-based polymers of intrinsic microporosity [J].