Polymers of Intrinsic Microporosity Derived from Novel Disulfone-Based Monomers

被引：127

作者：

Du, Naiying ^{[1
]}

Robertson, Gilles P. ^{[1
]}

Pinnau, Ingo ^{[2
]}

Guiver, Michael D. ^{[1
]}

机构：

[1] Natl Res Council Canada, Inst Chem Proc Environm Technol, Ottawa, ON K1A 0R6, Canada

[2] Membrane Technol & Res Inc, Menlo Pk, CA 94025 USA

来源：

MACROMOLECULES | 2009年 / 42卷 / 16期

关键词：

HYDROGEN STORAGE; PERMEABILITY; SUBSTITUENTS; CAVITIES; PIMS;

D O I：

10.1021/ma900898m

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The synthesis of three novel disulfone-based monomers from readily available hexafluorobenzene and thiols for the preparation of homopolymers and copolymers of intrinsic microporosity (PIMs) is described. The disulfonyl-based PIMs derived from 5,5',6,6'-tetrahydroxy-3,3,3',3'-tetramethylspirobisindane (TTSBI) with tetrafluoroterephthalonitrile (TFTPN) and disulfone-based monomers were prepared at high temperature (160 degrees C) within 1 h. Three new copolymers (monomer molar ratio of TTSBI and disulfone-based monomers = 3: 1) show a good combination of properties, such as excellent film-forming characteristics and gas transport properties. Compared with a previously reported microporous nitrile-based homopolymer, referred to as PIM-1, the present sulfone-based copolymers have higher gas selectivities for O-2/N-2 and CO2/N-2, while showing some reduction in pure-gas permeabilities. The relationship between the structure and gas permeation behavior of the copolymers is discussed.

引用

页码：6023 / 6030

页数：8

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