Enhancement of CO2 Affinity in a Polymer of Intrinsic Microporosity by Amine Modification

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F14%3A43896617" target="_blank" >RIV/60461373:22340/14:43896617 - isvavai.cz</a>

Výsledek na webu

<a href="http://pubs.acs.org/doi/abs/10.1021/ma401869p?prevSearch=%255BContrib%253A%2BFriess%255D&searchHistoryKey=" target="_blank" >http://pubs.acs.org/doi/abs/10.1021/ma401869p?prevSearch=%255BContrib%253A%2BFriess%255D&searchHistoryKey=</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/ma401869p" target="_blank" >10.1021/ma401869p</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Enhancement of CO2 Affinity in a Polymer of Intrinsic Microporosity by Amine Modification

Popis výsledku v původním jazyce

Nitrile groups in the polymer of intrinsic microporosity PIM-1 were reduced to primary amines using borane complexes. In adsorption experiments, the novel amine?PIM-1 showed higher CO2 uptake and higher CO2/ N2 sorption selectivity than the parent polymer, with very evident dual-mode sorption behavior. In gas permeation with six light gases, the individual contributions of solubility and diffusion to the overall permeability was determined via timelag analysis. The high CO2 affinity drastically restricts diffusion at low pressures and lowers CO2 permeability compared to the parent PIM-1. Furthermore, the size-sieving properties of the polymer are increased, which can be attributed to a higher stiffness of the system arising from hydrogen bonding of theamine groups. Thus, for the H2/CO2 gas pair, whereas PIM-1 favors CO2, amine?PIM-1 shows permselectivity toward H2, breaking the Robeson 2008 upper bound.

Název v anglickém jazyce

Enhancement of CO2 Affinity in a Polymer of Intrinsic Microporosity by Amine Modification

Popis výsledku anglicky

Nitrile groups in the polymer of intrinsic microporosity PIM-1 were reduced to primary amines using borane complexes. In adsorption experiments, the novel amine?PIM-1 showed higher CO2 uptake and higher CO2/ N2 sorption selectivity than the parent polymer, with very evident dual-mode sorption behavior. In gas permeation with six light gases, the individual contributions of solubility and diffusion to the overall permeability was determined via timelag analysis. The high CO2 affinity drastically restricts diffusion at low pressures and lowers CO2 permeability compared to the parent PIM-1. Furthermore, the size-sieving properties of the polymer are increased, which can be attributed to a higher stiffness of the system arising from hydrogen bonding of theamine groups. Thus, for the H2/CO2 gas pair, whereas PIM-1 favors CO2, amine?PIM-1 shows permselectivity toward H2, breaking the Robeson 2008 upper bound.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Macromolecules

ISSN

0024-9297

e-ISSN

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Svazek periodika

47

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

1021-1029

Kód UT WoS článku

000331344200018

EID výsledku v databázi Scopus

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