View More View Less
  • 1 STMicroelectronics, 9 Mountain Drive, Light Industry and Science Park II, Calamba City 4027, Laguna, Philippines
  • | 2 Synthetic Organic Research Laboratory, Institute of Chemistry, University of the Philippines, Diliman, Quezon City 1101, Philippines
Restricted access

Abstract

The thermal stability of the ionic liquids (ILs) 1-n-butyl-3-methylimidazolium bromide, [BMIM]Br, and 1-n-octyl-3-methylimidazolium bromide, [OMIM]Br, was evaluated through thermogravimetry (TG). Long-term isothermal TG studies revealed that both of these ILs exhibit appreciable decomposition even at temperatures significantly lower than the onset decomposition temperature, previously determined from fast scan TG experiments. The long-term TG studies of both the ILs showed linear mass loss as a function of time at each temperature of 10 °C interval in the range 533–573 K over a period of 10 h. The kinetics of isothermal decomposition of ILs was analyzed using pseudo-zero-order rate expression. The activation energies for the isothermal decomposition of [BMIM]Br and [OMIM]Br under nitrogen atmosphere are 219.86 and 212.50 kJ mol−1, respectively. The moisture absorption kinetics of these ILs at 25 °C and 30% relative humidity (RH) and at 85 °C and 85% RH were also studied. Water uptake of ILs exposed at 25 °C/30%RH follows a simple saturation behavior in agreement with Weibull model while that at 85 °C/85%RH fortuitously fit into the Henderson–Pabis model.

  • 1. Holbrey, JD, Seddon, KR 1999 Ionic liquids. Clean Prod Processes 1:223226.

  • 2. Seddon, KR Ionic liquids for clean technologies. J Chem Technol Biotech 1997 68:351356 .

  • 3. Welton, T Room-temperature ionic liquids: solvents for synthesis and catalysis. Chem Rev 1999 99:20712073 .

  • 4. Wilkes, JS, Levisky, JA, Wilson, RA, Charles, LH 1982 Dialkylimidazolium chloroaluminate melts: a new class of room-temperature ionic liquids for electrochemistry, spectroscopy, and synthesis. Inorg Chem 21:12631264 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 5. Quinn, BM, Ding, Z, Moulton, R, Bard, AJ 2002 Novel electrochemical studies of ionic liquids. Langmuir 18:17341742 .

  • 6. Olivier-Bourbigou, H, Magna, L, Morvan, D 2010 Ionic liquids and catalysis: recent progress from knowledge to applications. Appl Catal A Gen 373:156 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 7. Hapiot, P, Lagrost, C 2008 Electrochemical reactivity in room-temperature ionic liquids. Chem Rev 108:22382264 .

  • 8. Wang, X, Ohlin, CA, Lu, Q, Fei, ZF, Hu, J, Dyson, PJ 2007 Cytotoxicity of ionic liquids and precursor compounds towards human cell line HeLa. Green Chem 9:11911197 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 9. Schneider, S, Hawkins, T, Rosander, M, Vaghjiani, G, Chambreau, S, Drake, G 2008 Ionic liquids as hypergolic fuels. Energy Fuels 22:28712872 .

  • 10. Reichardt, C 2005 Polarity of ionic liquids determined empirically by means of solvatochromic pyridinium N-phenolate betaine dyes. Green Chem 7:339351.

    • Search Google Scholar
    • Export Citation
  • 11. Noda, A, Hayamizu, K, Watanabe, M 2001 Pulsed-gradient spin-echo 1H and 19F NMR ionic diffusion coefficient, viscosity, and ionic conductivity of non-chloroaluminate room-temperature ionic liquids. J Phys Chem B 105:46034610 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 12. Martino, W JF de la Mora Yoshida, Y, Saito, G, Wilkes, J 2006 Surface tension measurements of highly conducting ionic liquids. Green Chem 8:390397 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 13. Earle, MJ, Esperanca, JMSS, Gilea, MA, Lopes, JNC, Rebelo, LPN, Magee, JW, Seddon, KR, Widegren, JA 2006 The distillation and volatility of ionic liquids. Nature 439:831834 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 14. Kamavaram, V, Reddy, RG 2008 Thermal stabilities of di-alkylimidazolium chloride ionic liquids. Int J Therm Sci 47:773777 .

  • 15. Kosmulski, M, Gustafsson, J, Rosenholm, JB 2004 Thermal stability of low temperature ionic liquids revisited. Thermochim Acta 412:4753 .

  • 16. Baranyai, KJ, Deacon, GB, MacFarlane, DR, Pringle, JM, Scott, JL 2004 Thermal degradation of ionic liquids at elevated temperatures. Aust J Chem 57:145147 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 17. Huddleston, JG, Visser, AE, Reichert, WM, Willauer, HD, Broker, GA, Rogers, RD 2001 Characterization and comparison of hydrophilic and hydrophobic room temperature ionic liquids incorporating the imidazolium cation. Green Chem 3:156164 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 18. Seddon, KR, Stark, A, Torrés, MJ 2000 Influence of chloride, water, and organic solvents on the physical properties of ionic liquids. Pure Appl Chem 72:22752287 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 19. Hanioka, S, Maruyama, T, Sotani, T, Teramoto, M, Matsuyama, H, Nakashima, K, Hanaki, M, Kubota, F, Goto, M 2008 CO2 separation facilitated by task-specific ionic liquids using a supported liquid membrane. J Membr Sci 314:14 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 20. Zhao, W, He, G, Zhang, L, Ju, J, Dou, H, Nie, F, Li, C, Liu, H 2010 Effect of water in ionic liquid on the separation performance of supported ionic liquid membrane for CO2/N2. J Membr Sci 350:279285 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 21. Ramenskaya, LM, Grishina, EP, Pimenova, AM, Gruzdev, MS 2008 The influence of water on the physicochemical characteristics of 1-butyl-3-methylimidazolium bromide ionic liquid. Russ J Phys Chem A 82:10981103 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 22. Fox, DM, Gilman, JW HC De Long Trulove, PC TG decomposition kinetics of 1-butyl-2, 3-dimethylimidazolium tetrafluoroborate and the thermal effects of contaminants. J Chem Thermodyn 2005 37:900905 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 23. Obliosca, JM, Arco, SD, Huang, MH 2007 Synthesis and optical properties of 1-Alkyl-3-methylimidazolium lauryl sulfate ionic liquids. J Fluoresc 17:613618 .

    • Crossref
    • Search Google Scholar
    • Export Citation

Manuscript Submission: HERE

  • Impact Factor (2019): 2.731
  • Scimago Journal Rank (2019): 0.415
  • SJR Hirsch-Index (2019): 87
  • SJR Quartile Score (2019): Q3 Condensed Matter Physics
  • SJR Quartile Score (2019): Q3 Physical and Theoretical Chemistry
  • Impact Factor (2018): 2.471
  • Scimago Journal Rank (2018): 0.634
  • SJR Hirsch-Index (2018): 78
  • SJR Quartile Score (2018): Q2 Condensed Matter Physics
  • SJR Quartile Score (2018): Q2 Physical and Theoretical Chemistry

For subscription options, please visit the website of Springer.

Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
4
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Apr 2021 4 0 0
May 2021 3 0 0
Jun 2021 5 0 0
Jul 2021 6 0 0
Aug 2021 2 0 0
Sep 2021 0 0 0
Oct 2021 0 0 0