Solubility and diffusivity of small molecules in thermally rearranged ortho-functional polyimides for gas separations

Zachary P. Smith; David Sanders; Cláudio Ribeiro; Benny D. Freeman; Donald Paul

Solubility and diffusivity of small molecules in thermally rearranged ortho-functional polyimides for gas separations

Zachary P. Smith, David Sanders, Cláudio Ribeiro, Benny D. Freeman, Donald Paul

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

Abstract

A TR polymer is a polybenzoxazole or polybenzthiazole membrane derived from the thermal rearrangement and decarboxylation of hydroxyl or thiol-containing polyimides. TR polymers have shown permeabilities and selectivities above the Robeson upper bound and a resistance to CO₂ plasticization for applications in natural gas sweetening; however, the fundamental transport properties of these materials have never been studied. In this work, differences in penetrant solubility and diffusivity are investigated for several polyimides and their corresponding TR polymers. Solubility increases by a factor of approximately two, while diffusivity increases by nearly two orders of magnitude. Therefore, the high permeability of TR polymers is attributed largely to high penetrant diffusivities.

Original language	English
Title of host publication	240th ACS National Meeting and Exposition, Boston, MA, 22 August 2010 - 26 August 2010
Publisher	American Chemical Society
Publication status	Published - 2010
Externally published	Yes
Event	ACS National Meeting and Exposition 2010 - San Francisco, United States of America Duration: 21 Mar 2010 → 25 Mar 2010 Conference number: 239th

Publication series

Name	ACS National Meeting Book of Abstracts
Publisher	American Chemical Society
ISSN (Print)	0065-7727

Conference

Conference	ACS National Meeting and Exposition 2010
Country/Territory	United States of America
City	San Francisco
Period	21/03/10 → 25/03/10

Cite this

@inproceedings{cd2170edd4a94b5bbe30e5dbf1925033,

title = "Solubility and diffusivity of small molecules in thermally rearranged ortho-functional polyimides for gas separations",

abstract = "A TR polymer is a polybenzoxazole or polybenzthiazole membrane derived from the thermal rearrangement and decarboxylation of hydroxyl or thiol-containing polyimides. TR polymers have shown permeabilities and selectivities above the Robeson upper bound and a resistance to CO2 plasticization for applications in natural gas sweetening; however, the fundamental transport properties of these materials have never been studied. In this work, differences in penetrant solubility and diffusivity are investigated for several polyimides and their corresponding TR polymers. Solubility increases by a factor of approximately two, while diffusivity increases by nearly two orders of magnitude. Therefore, the high permeability of TR polymers is attributed largely to high penetrant diffusivities.",

author = "Smith, {Zachary P.} and David Sanders and Cl{\'a}udio Ribeiro and Freeman, {Benny D.} and Donald Paul",

year = "2010",

language = "English",

series = "ACS National Meeting Book of Abstracts",

publisher = "American Chemical Society",

booktitle = "240th ACS National Meeting and Exposition, Boston, MA, 22 August 2010 - 26 August 2010",

address = "United States of America",

}

Smith, ZP, Sanders, D, Ribeiro, C, Freeman, BD & Paul, D 2010, Solubility and diffusivity of small molecules in thermally rearranged ortho-functional polyimides for gas separations. in 240th ACS National Meeting and Exposition, Boston, MA, 22 August 2010 - 26 August 2010. ACS National Meeting Book of Abstracts, American Chemical Society, ACS National Meeting and Exposition 2010, San Francisco, California, United States of America, 21/03/10.

Solubility and diffusivity of small molecules in thermally rearranged ortho-functional polyimides for gas separations. / Smith, Zachary P.; Sanders, David; Ribeiro, Cláudio et al.
240th ACS National Meeting and Exposition, Boston, MA, 22 August 2010 - 26 August 2010. American Chemical Society, 2010. (ACS National Meeting Book of Abstracts).

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

TY - GEN

T1 - Solubility and diffusivity of small molecules in thermally rearranged ortho-functional polyimides for gas separations

AU - Smith, Zachary P.

AU - Sanders, David

AU - Ribeiro, Cláudio

AU - Freeman, Benny D.

AU - Paul, Donald

N1 - Conference code: 239th

PY - 2010

Y1 - 2010

N2 - A TR polymer is a polybenzoxazole or polybenzthiazole membrane derived from the thermal rearrangement and decarboxylation of hydroxyl or thiol-containing polyimides. TR polymers have shown permeabilities and selectivities above the Robeson upper bound and a resistance to CO2 plasticization for applications in natural gas sweetening; however, the fundamental transport properties of these materials have never been studied. In this work, differences in penetrant solubility and diffusivity are investigated for several polyimides and their corresponding TR polymers. Solubility increases by a factor of approximately two, while diffusivity increases by nearly two orders of magnitude. Therefore, the high permeability of TR polymers is attributed largely to high penetrant diffusivities.

AB - A TR polymer is a polybenzoxazole or polybenzthiazole membrane derived from the thermal rearrangement and decarboxylation of hydroxyl or thiol-containing polyimides. TR polymers have shown permeabilities and selectivities above the Robeson upper bound and a resistance to CO2 plasticization for applications in natural gas sweetening; however, the fundamental transport properties of these materials have never been studied. In this work, differences in penetrant solubility and diffusivity are investigated for several polyimides and their corresponding TR polymers. Solubility increases by a factor of approximately two, while diffusivity increases by nearly two orders of magnitude. Therefore, the high permeability of TR polymers is attributed largely to high penetrant diffusivities.

UR - http://www.scopus.com/inward/record.url?scp=79951479505&partnerID=8YFLogxK

M3 - Conference Paper

AN - SCOPUS:79951479505

T3 - ACS National Meeting Book of Abstracts

BT - 240th ACS National Meeting and Exposition, Boston, MA, 22 August 2010 - 26 August 2010

PB - American Chemical Society

T2 - ACS National Meeting and Exposition 2010

Y2 - 21 March 2010 through 25 March 2010

ER -

Solubility and diffusivity of small molecules in thermally rearranged ortho-functional polyimides for gas separations

Abstract

Publication series

Conference

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