The characterisation, solubility testing, and alcohol adsorption studies of PIM-1 are reported. Techniques used for characterisation are N2 sorption and ATR-FTIR analysis. A number of solvents were tested for their ability to dissolve low molecular weight (~30 000 gmol-1), medium molecular weight (~60 000 gmol-1), and high molecular weight (~120 000 gmol-1) PIM-1.Results showed solubility of PIM-1 in these solvents to be dependent on molar mass. CHCl3, tetrahydrofuran (THF), CH2Cl2, dicholobenzene (DCB), 1,2,4- trichlorobenzene (TCB), and acetophenone were found to be good solvents at all molecular weights. Treatment of PIM-1 with nonsolvents, namely: small alcohols and water, followed by solvent removal, caused swelling, resulting in an increase in BET surface area of about 11 %, except for water, which reduced BET surface area by the same amount (11 %). Methanol (MeOH) treatment resulted in a new population of micropores around 0.6 nm. The change after ethanol (EtOH) and propanol (PrOH) treatment was not as significant. Hydrogen bonding between alcohols and PIM-1 was also investigated using shifts in the frequencies of FTIR peaks for the ether and the nitrile functional groups. Nitrile group frequencies for the alcohols were consistently blue-shifted, whereas the ether frequencies were red shifted. Both red- and blue-shifts were used as a measure of hydrogen bond strength.
| Published in | American Journal of Applied Chemistry (Volume 3, Issue 3) |
| DOI | 10.11648/j.ajac.20150303.17 |
| Page(s) | 139-146 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2015. Published by Science Publishing Group |
PIM-1, Solvents, Alcohols, Hydrogen-Bonding
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APA Style
Nhamo Chaukura, Louise Maynard-Atem. (2015). Interaction of a Polymer of Intrinsic Microporosity (PIM-1) with Penetrants. American Journal of Applied Chemistry, 3(3), 139-146. https://doi.org/10.11648/j.ajac.20150303.17
ACS Style
Nhamo Chaukura; Louise Maynard-Atem. Interaction of a Polymer of Intrinsic Microporosity (PIM-1) with Penetrants. Am. J. Appl. Chem. 2015, 3(3), 139-146. doi: 10.11648/j.ajac.20150303.17
AMA Style
Nhamo Chaukura, Louise Maynard-Atem. Interaction of a Polymer of Intrinsic Microporosity (PIM-1) with Penetrants. Am J Appl Chem. 2015;3(3):139-146. doi: 10.11648/j.ajac.20150303.17
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Download@article{10.11648/j.ajac.20150303.17,
author = {Nhamo Chaukura and Louise Maynard-Atem},
title = {Interaction of a Polymer of Intrinsic Microporosity (PIM-1) with Penetrants},
journal = {American Journal of Applied Chemistry},
volume = {3},
number = {3},
pages = {139-146},
doi = {10.11648/j.ajac.20150303.17},
url = {https://doi.org/10.11648/j.ajac.20150303.17},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajac.20150303.17},
abstract = {The characterisation, solubility testing, and alcohol adsorption studies of PIM-1 are reported. Techniques used for characterisation are N2 sorption and ATR-FTIR analysis. A number of solvents were tested for their ability to dissolve low molecular weight (~30 000 gmol-1), medium molecular weight (~60 000 gmol-1), and high molecular weight (~120 000 gmol-1) PIM-1.Results showed solubility of PIM-1 in these solvents to be dependent on molar mass. CHCl3, tetrahydrofuran (THF), CH2Cl2, dicholobenzene (DCB), 1,2,4- trichlorobenzene (TCB), and acetophenone were found to be good solvents at all molecular weights. Treatment of PIM-1 with nonsolvents, namely: small alcohols and water, followed by solvent removal, caused swelling, resulting in an increase in BET surface area of about 11 %, except for water, which reduced BET surface area by the same amount (11 %). Methanol (MeOH) treatment resulted in a new population of micropores around 0.6 nm. The change after ethanol (EtOH) and propanol (PrOH) treatment was not as significant. Hydrogen bonding between alcohols and PIM-1 was also investigated using shifts in the frequencies of FTIR peaks for the ether and the nitrile functional groups. Nitrile group frequencies for the alcohols were consistently blue-shifted, whereas the ether frequencies were red shifted. Both red- and blue-shifts were used as a measure of hydrogen bond strength.},
year = {2015}
}
TY - JOUR T1 - Interaction of a Polymer of Intrinsic Microporosity (PIM-1) with Penetrants AU - Nhamo Chaukura AU - Louise Maynard-Atem Y1 - 2015/06/16 PY - 2015 N1 - https://doi.org/10.11648/j.ajac.20150303.17 DO - 10.11648/j.ajac.20150303.17 T2 - American Journal of Applied Chemistry JF - American Journal of Applied Chemistry JO - American Journal of Applied Chemistry SP - 139 EP - 146 PB - Science Publishing Group SN - 2330-8745 UR - https://doi.org/10.11648/j.ajac.20150303.17 AB - The characterisation, solubility testing, and alcohol adsorption studies of PIM-1 are reported. Techniques used for characterisation are N2 sorption and ATR-FTIR analysis. A number of solvents were tested for their ability to dissolve low molecular weight (~30 000 gmol-1), medium molecular weight (~60 000 gmol-1), and high molecular weight (~120 000 gmol-1) PIM-1.Results showed solubility of PIM-1 in these solvents to be dependent on molar mass. CHCl3, tetrahydrofuran (THF), CH2Cl2, dicholobenzene (DCB), 1,2,4- trichlorobenzene (TCB), and acetophenone were found to be good solvents at all molecular weights. Treatment of PIM-1 with nonsolvents, namely: small alcohols and water, followed by solvent removal, caused swelling, resulting in an increase in BET surface area of about 11 %, except for water, which reduced BET surface area by the same amount (11 %). Methanol (MeOH) treatment resulted in a new population of micropores around 0.6 nm. The change after ethanol (EtOH) and propanol (PrOH) treatment was not as significant. Hydrogen bonding between alcohols and PIM-1 was also investigated using shifts in the frequencies of FTIR peaks for the ether and the nitrile functional groups. Nitrile group frequencies for the alcohols were consistently blue-shifted, whereas the ether frequencies were red shifted. Both red- and blue-shifts were used as a measure of hydrogen bond strength. VL - 3 IS - 3 ER -
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