Polyphosphazene polymer development for mixed matrix membranes using SIFSIX-Cu-2i as performance enhancement filler particles

Surendar R. Venna, Alex Spore, Zhicheng Tian, Anne M. Marti, Erik J. Albenze, Hunaid B. Nulwala, Nathaniel L. Rosi, David R. Luebke, David P. Hopkinson, Harry R. Allcock

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Phosphazene-based polymers were synthesized by using different pendant groups such as trifluoroethoxy (TFE), phenoxy (PHO) and octafluoropentoxy (OFP). High performance methoxyethoxyethoxy/cyclohexoxy (MEE/CH) based polyphosphazene was developed for the first time in literature using a mixed-substitution method. The structural, chemical, and thermal properties of these polymers were analyzed using several techniques such as Gel Permeation Chromatography (GPC), Thermal Gravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), and Nuclear Magnetic Resonance (NMR). Significant differences in gas transport properties of gases have been observed between these pendant groups because of their differences in glass transition temperature and physical interaction with CO2. For the first time, we report on the high performance of TFE polyphophazene based mixed matrix membranes (MMMs) using a SIFSIX-Cu-2i (SIFSIX) metal organic framework (MOF) as the filler particles. These MMMs showed a significant improvement in both CO2 permeability and CO2/N2 selectivity compared to pure TFE polyphosphazene membranes. The excellent gas transport properties of these membranes make them very promising material for carbon capture applications.

Original languageEnglish (US)
Pages (from-to)103-112
Number of pages10
JournalJournal of Membrane Science
Volume535
DOIs
StatePublished - 2017

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

Fingerprint Dive into the research topics of 'Polyphosphazene polymer development for mixed matrix membranes using SIFSIX-Cu-2i as performance enhancement filler particles'. Together they form a unique fingerprint.

  • Cite this

    Venna, S. R., Spore, A., Tian, Z., Marti, A. M., Albenze, E. J., Nulwala, H. B., Rosi, N. L., Luebke, D. R., Hopkinson, D. P., & Allcock, H. R. (2017). Polyphosphazene polymer development for mixed matrix membranes using SIFSIX-Cu-2i as performance enhancement filler particles. Journal of Membrane Science, 535, 103-112. https://doi.org/10.1016/j.memsci.2017.04.033