Molecular Mobility and Gas Transport Properties of Nanocomposites based on PIM-1 and Polyhedral Oligomeric Phenethyl-Silsesquioxanes (POSS)

Nora Konnertz; Yi Ding; Wayne Harrison; Peter Budd; Andreas Schönhals; Martin Böhning

doi:10.1016/j.memsci.2017.02.007

Molecular Mobility and Gas Transport Properties of Nanocomposites based on PIM-1 and Polyhedral Oligomeric Phenethyl-Silsesquioxanes (POSS)

Nora Konnertz, Yi Ding, Wayne Harrison, Peter Budd, Andreas Schönhals, Martin Böhning

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Abstract

Polymers with intrinsic microporosity (PIMs) are of great interest in the field of gas separation membranes. Already the first synthesized PIM-1 shows extraordinary permeability and selectivity. Unfortunately, PIM-1 is susceptible to physical aging and thus gradually loses its outstanding properties. In this study a polyhedral oligomeric silsesquioxane with phenethyl substituents (PhenethylPOSS) was used as a nanofiller (0–40 wt%) in the PIM-1 matrix to potentially improve the gas transport properties and prevent physical aging. The molecular mobility of the solution-cast nanocomposite films was analyzed by Broadband Dielectric Spectroscopy (BDS). Furthermore, gas permeability was determined with the time lag method (0–20 bar upstream pressure) at 35 °C for N2, O2, CH4 and CO2.

Original language	English
Pages (from-to)	274–285
Number of pages	12
Journal	Journal of Membrane Science
Volume	529
Early online date	8 Feb 2017
DOIs	https://doi.org/10.1016/j.memsci.2017.02.007
Publication status	Published - 1 May 2017

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10.1016/j.memsci.2017.02.007

JMembrSci Konnertz ACCEPTED MANUSCRIPTAccepted author manuscript, 22.4 MB

Graphene-based membranes
Budd, P. (PI), Carbone, P. (CoI), Casiraghi, C. (CoI), Grieve, B. (CoI), Haigh, S. (CoI), Holmes, S. (CoI), Jivkov, A. (CoI), Kinloch, I. (CoI), Raveendran Nair, R. (CoI), Schroeder, S. (CoI), Siperstein, F. (CoI) & Vijayaraghavan, A. (CoI)
1/07/13 → 30/06/18
Project: Research

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title = "Molecular Mobility and Gas Transport Properties of Nanocomposites based on PIM-1 and Polyhedral Oligomeric Phenethyl-Silsesquioxanes (POSS)",

abstract = "Polymers with intrinsic microporosity (PIMs) are of great interest in the field of gas separation membranes. Already the first synthesized PIM-1 shows extraordinary permeability and selectivity. Unfortunately, PIM-1 is susceptible to physical aging and thus gradually loses its outstanding properties. In this study a polyhedral oligomeric silsesquioxane with phenethyl substituents (PhenethylPOSS) was used as a nanofiller (0–40 wt%) in the PIM-1 matrix to potentially improve the gas transport properties and prevent physical aging. The molecular mobility of the solution-cast nanocomposite films was analyzed by Broadband Dielectric Spectroscopy (BDS). Furthermore, gas permeability was determined with the time lag method (0–20 bar upstream pressure) at 35 °C for N2, O2, CH4 and CO2.",

author = "Nora Konnertz and Yi Ding and Wayne Harrison and Peter Budd and Andreas Sch{\"o}nhals and Martin B{\"o}hning",

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doi = "10.1016/j.memsci.2017.02.007",

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T1 - Molecular Mobility and Gas Transport Properties of Nanocomposites based on PIM-1 and Polyhedral Oligomeric Phenethyl-Silsesquioxanes (POSS)

AU - Konnertz, Nora

AU - Ding, Yi

AU - Harrison, Wayne

AU - Budd, Peter

AU - Schönhals, Andreas

AU - Böhning, Martin

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Polymers with intrinsic microporosity (PIMs) are of great interest in the field of gas separation membranes. Already the first synthesized PIM-1 shows extraordinary permeability and selectivity. Unfortunately, PIM-1 is susceptible to physical aging and thus gradually loses its outstanding properties. In this study a polyhedral oligomeric silsesquioxane with phenethyl substituents (PhenethylPOSS) was used as a nanofiller (0–40 wt%) in the PIM-1 matrix to potentially improve the gas transport properties and prevent physical aging. The molecular mobility of the solution-cast nanocomposite films was analyzed by Broadband Dielectric Spectroscopy (BDS). Furthermore, gas permeability was determined with the time lag method (0–20 bar upstream pressure) at 35 °C for N2, O2, CH4 and CO2.

AB - Polymers with intrinsic microporosity (PIMs) are of great interest in the field of gas separation membranes. Already the first synthesized PIM-1 shows extraordinary permeability and selectivity. Unfortunately, PIM-1 is susceptible to physical aging and thus gradually loses its outstanding properties. In this study a polyhedral oligomeric silsesquioxane with phenethyl substituents (PhenethylPOSS) was used as a nanofiller (0–40 wt%) in the PIM-1 matrix to potentially improve the gas transport properties and prevent physical aging. The molecular mobility of the solution-cast nanocomposite films was analyzed by Broadband Dielectric Spectroscopy (BDS). Furthermore, gas permeability was determined with the time lag method (0–20 bar upstream pressure) at 35 °C for N2, O2, CH4 and CO2.

U2 - 10.1016/j.memsci.2017.02.007

DO - 10.1016/j.memsci.2017.02.007

M3 - Article

SN - 0376-7388

VL - 529

SP - 274

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JO - Journal of Membrane Science

JF - Journal of Membrane Science

ER -

Molecular Mobility and Gas Transport Properties of Nanocomposites based on PIM-1 and Polyhedral Oligomeric Phenethyl-Silsesquioxanes (POSS)

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Graphene-based membranes

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