Triptycene-Based Polymers of Intrinsic Microporosity: Organic Materials That Can Be Tailored for Gas Adsorption

Research output: Contribution to journalArticle

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Triptycene-Based Polymers of Intrinsic Microporosity: Organic Materials That Can Be Tailored for Gas Adsorption. / Ghanem, BS; Hashem, M; Harris, KDM; Msayib, KJ; Xu, M; Budd, PM; Chaukura, N; Book, David; Tedds, Steven; Walton, Allan; McKeown, NB.

In: Macromolecules, Vol. 43, No. 12, 01.06.2010, p. 5287-5294.

Research output: Contribution to journalArticle

Harvard

Ghanem, BS, Hashem, M, Harris, KDM, Msayib, KJ, Xu, M, Budd, PM, Chaukura, N, Book, D, Tedds, S, Walton, A & McKeown, NB 2010, 'Triptycene-Based Polymers of Intrinsic Microporosity: Organic Materials That Can Be Tailored for Gas Adsorption', Macromolecules, vol. 43, no. 12, pp. 5287-5294. https://doi.org/10.1021/ma100640m

APA

Ghanem, BS., Hashem, M., Harris, KDM., Msayib, KJ., Xu, M., Budd, PM., Chaukura, N., Book, D., Tedds, S., Walton, A., & McKeown, NB. (2010). Triptycene-Based Polymers of Intrinsic Microporosity: Organic Materials That Can Be Tailored for Gas Adsorption. Macromolecules, 43(12), 5287-5294. https://doi.org/10.1021/ma100640m

Vancouver

Author

Ghanem, BS ; Hashem, M ; Harris, KDM ; Msayib, KJ ; Xu, M ; Budd, PM ; Chaukura, N ; Book, David ; Tedds, Steven ; Walton, Allan ; McKeown, NB. / Triptycene-Based Polymers of Intrinsic Microporosity: Organic Materials That Can Be Tailored for Gas Adsorption. In: Macromolecules. 2010 ; Vol. 43, No. 12. pp. 5287-5294.

Bibtex

@article{c2956747d04a40a79bbc152454b9f676,
title = "Triptycene-Based Polymers of Intrinsic Microporosity: Organic Materials That Can Be Tailored for Gas Adsorption",
abstract = "We report the synthesis and properties of network polymers of intrinsic microporosity (network PIMs) derived from triptycene monomers that possess alkyl groups attached to their bridgehead positions. Gas adsorption can be controlled by the length and branching of the alkyl chains so that the apparent BET surface area of the materials can be tuned within the range 618-1760 m(2) g(-1). Shorter (e.g., methyl) or branched (e.g., isopropyl) alkyl chains provide the materials of greatest microporosity, whereas longer alkyl chains appear to block the microporosity created by the rigid organic framework. The enhanced microporosity, in comparison to other PIMs, originates from the macromolecular shape of the framework, as dictated by the triptycene units, which helps to reduce intermolecular contact between the extended planar struts of the rigid framework and thus reduces the efficiency of packing within the solid. The hydrogen adsorption capacities of the triptycene-based PIMs with either methyl or isopropyl substituents arc among the highest for purely organic materials at low or moderate presures (1.83% by mass at 1 bar/77K, 3.4% by mass at 18 bar/77 K). The impressive hydrogen adsorption capacity of these materials is related to a high concentration of subnanometre micropores, as verified by Horvath-Kawazoe analysis of low-pressure nitrogen adsorption data.",
author = "BS Ghanem and M Hashem and KDM Harris and KJ Msayib and M Xu and PM Budd and N Chaukura and David Book and Steven Tedds and Allan Walton and NB McKeown",
year = "2010",
month = jun,
day = "1",
doi = "10.1021/ma100640m",
language = "English",
volume = "43",
pages = "5287--5294",
journal = "Macromolecules",
issn = "0024-9297",
publisher = "American Chemical Society",
number = "12",

}

RIS

TY - JOUR

T1 - Triptycene-Based Polymers of Intrinsic Microporosity: Organic Materials That Can Be Tailored for Gas Adsorption

AU - Ghanem, BS

AU - Hashem, M

AU - Harris, KDM

AU - Msayib, KJ

AU - Xu, M

AU - Budd, PM

AU - Chaukura, N

AU - Book, David

AU - Tedds, Steven

AU - Walton, Allan

AU - McKeown, NB

PY - 2010/6/1

Y1 - 2010/6/1

N2 - We report the synthesis and properties of network polymers of intrinsic microporosity (network PIMs) derived from triptycene monomers that possess alkyl groups attached to their bridgehead positions. Gas adsorption can be controlled by the length and branching of the alkyl chains so that the apparent BET surface area of the materials can be tuned within the range 618-1760 m(2) g(-1). Shorter (e.g., methyl) or branched (e.g., isopropyl) alkyl chains provide the materials of greatest microporosity, whereas longer alkyl chains appear to block the microporosity created by the rigid organic framework. The enhanced microporosity, in comparison to other PIMs, originates from the macromolecular shape of the framework, as dictated by the triptycene units, which helps to reduce intermolecular contact between the extended planar struts of the rigid framework and thus reduces the efficiency of packing within the solid. The hydrogen adsorption capacities of the triptycene-based PIMs with either methyl or isopropyl substituents arc among the highest for purely organic materials at low or moderate presures (1.83% by mass at 1 bar/77K, 3.4% by mass at 18 bar/77 K). The impressive hydrogen adsorption capacity of these materials is related to a high concentration of subnanometre micropores, as verified by Horvath-Kawazoe analysis of low-pressure nitrogen adsorption data.

AB - We report the synthesis and properties of network polymers of intrinsic microporosity (network PIMs) derived from triptycene monomers that possess alkyl groups attached to their bridgehead positions. Gas adsorption can be controlled by the length and branching of the alkyl chains so that the apparent BET surface area of the materials can be tuned within the range 618-1760 m(2) g(-1). Shorter (e.g., methyl) or branched (e.g., isopropyl) alkyl chains provide the materials of greatest microporosity, whereas longer alkyl chains appear to block the microporosity created by the rigid organic framework. The enhanced microporosity, in comparison to other PIMs, originates from the macromolecular shape of the framework, as dictated by the triptycene units, which helps to reduce intermolecular contact between the extended planar struts of the rigid framework and thus reduces the efficiency of packing within the solid. The hydrogen adsorption capacities of the triptycene-based PIMs with either methyl or isopropyl substituents arc among the highest for purely organic materials at low or moderate presures (1.83% by mass at 1 bar/77K, 3.4% by mass at 18 bar/77 K). The impressive hydrogen adsorption capacity of these materials is related to a high concentration of subnanometre micropores, as verified by Horvath-Kawazoe analysis of low-pressure nitrogen adsorption data.

U2 - 10.1021/ma100640m

DO - 10.1021/ma100640m

M3 - Article

VL - 43

SP - 5287

EP - 5294

JO - Macromolecules

JF - Macromolecules

SN - 0024-9297

IS - 12

ER -