skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Phosphazene membranes for gas separations

Abstract

A polyphosphazene having a glass transition temperature ("T.sub.g") of approximately -20.degree. C. or less. The polyphosphazene has at least one pendant group attached to a backbone of the polyphosphazene, wherein the pendant group has no halogen atoms. In addition, no aromatic groups are attached to an oxygen atom that is bound to a phosphorus atom of the backbone. The polyphosphazene may have a T.sub.g ranging from approximately -100.degree. C. to approximately -20.degree. C. The polyphosphazene may be selected from the group consisting of poly[bis-3-phenyl-1-propoxy)phosphazene], poly[bis-(2-phenyl-1-ethoxy)phosphazene], poly[bis-(dodecanoxypolyethoxy)-phosphazene], and poly[bis-(2-(2-(2-.omega.-undecylenyloxyethoxy)ethoxy)ethoxy)phosphazene]- . The polyphosphazene may be used in a separation membrane to selectively separate individual gases from a gas mixture, such as to separate polar gases from nonpolar gases in the gas mixture.

Inventors:
; ; ;
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175823
Patent Number(s):
7,074,256
Application Number:
10/846,195
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
DOE Contract Number:  
AC07-05ID14517
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Stewart, Frederick F., Harrup, Mason K., Orme, Christopher J., and Luther, Thomas A. Phosphazene membranes for gas separations. United States: N. p., 2006. Web.
Stewart, Frederick F., Harrup, Mason K., Orme, Christopher J., & Luther, Thomas A. Phosphazene membranes for gas separations. United States.
Stewart, Frederick F., Harrup, Mason K., Orme, Christopher J., and Luther, Thomas A. Tue . "Phosphazene membranes for gas separations". United States. https://www.osti.gov/servlets/purl/1175823.
@article{osti_1175823,
title = {Phosphazene membranes for gas separations},
author = {Stewart, Frederick F. and Harrup, Mason K. and Orme, Christopher J. and Luther, Thomas A.},
abstractNote = {A polyphosphazene having a glass transition temperature ("T.sub.g") of approximately -20.degree. C. or less. The polyphosphazene has at least one pendant group attached to a backbone of the polyphosphazene, wherein the pendant group has no halogen atoms. In addition, no aromatic groups are attached to an oxygen atom that is bound to a phosphorus atom of the backbone. The polyphosphazene may have a T.sub.g ranging from approximately -100.degree. C. to approximately -20.degree. C. The polyphosphazene may be selected from the group consisting of poly[bis-3-phenyl-1-propoxy)phosphazene], poly[bis-(2-phenyl-1-ethoxy)phosphazene], poly[bis-(dodecanoxypolyethoxy)-phosphazene], and poly[bis-(2-(2-(2-.omega.-undecylenyloxyethoxy)ethoxy)ethoxy)phosphazene]- . The polyphosphazene may be used in a separation membrane to selectively separate individual gases from a gas mixture, such as to separate polar gases from nonpolar gases in the gas mixture.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {7}
}

Patent:

Save / Share:

Works referenced in this record:

Characterization of gas transport in selected rubbery amorphous polyphosphazene membranes
journal, May 2001


Synthesis and characterization of polyaryloxyphosphazenes
journal, February 1974

  • Singler, R. E.; Hagnauer, G. L.; Schneider, N. S.
  • Journal of Polymer Science: Polymer Chemistry Edition, Vol. 12, Issue 2
  • DOI: 10.1002/pol.1974.170120214