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

Title: Control of Chemical, Thermal, and Gas Transport Properties in Dense Phosphazene Polymer Membranes.

Abstract

Polyphosphazenes are hybrid polymers having organic pendant groups attached to an inorganic backbone. Phosphazene polymers can be tailored to specific applications through the attachment of a variety of different pendant groups to the phosphazene backbone. Applications for which these polymers have proven useful include solid polymer electrolytes for batteries and fuel cells, as well as, membranes for gas and liquid separations. In past work, phosphazene polymers have been synthesized using mixtures of pendant groups with differing chemical affinities. Specific ratios of hydrophobic and hydrophilic pendant groups were placed on the phosphazene backbone with a goal of demonstrating control of solubility, and therefore chemical selectivity. In this work, a series of phosphazene homo-polymers were synthesized having varying amounts of hydrophobic and hydrophilic character on each individual pendant group. Polymers were synthesized having a hydrophilic portion next to the polymer backbone and the hydrophobic portion on the terminal end of the pendant group. The effects of these combined hydrophobic/hydrophilic pendant groups on polymer morphology and gas transport properties are presented. The following data will be addressed: thermal characterization, pure gas permeability on seven gases (Ar, H2, O2, N2, CO2, and CH4 ), and ideal selectivity for the gas pairs: O2/N2, H2/CO2, CO2/H2,more » CO2/CH4 and CO2/N2.« less

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Idaho National Laboratory (INL)
Sponsoring Org.:
DOE - EE
OSTI Identifier:
911798
Report Number(s):
INL/CON-05-00348
TRN: US200801%%244
DOE Contract Number:  
DE-AC07-99ID-13727
Resource Type:
Conference
Resource Relation:
Conference: Annual AICHE Meeting,Cincinnati, OH,10/30/2005,11/04/2005
Country of Publication:
United States
Language:
English
Subject:
36 - MATERIALS SCIENCE; ELECTROLYTES; FUEL CELLS; GASES; MEMBRANES; MIXTURES; MORPHOLOGY; PERMEABILITY; POLYMERS; SOLUBILITY; TRANSPORT

Citation Formats

Orme, Christopher J, Stewart, Frederick F, Stone, Mark L, Harrup, Mason K, Luther, Thomas A, and Peterson, Eric S. Control of Chemical, Thermal, and Gas Transport Properties in Dense Phosphazene Polymer Membranes.. United States: N. p., 2005. Web.
Orme, Christopher J, Stewart, Frederick F, Stone, Mark L, Harrup, Mason K, Luther, Thomas A, & Peterson, Eric S. Control of Chemical, Thermal, and Gas Transport Properties in Dense Phosphazene Polymer Membranes.. United States.
Orme, Christopher J, Stewart, Frederick F, Stone, Mark L, Harrup, Mason K, Luther, Thomas A, and Peterson, Eric S. Sat . "Control of Chemical, Thermal, and Gas Transport Properties in Dense Phosphazene Polymer Membranes.". United States. https://www.osti.gov/servlets/purl/911798.
@article{osti_911798,
title = {Control of Chemical, Thermal, and Gas Transport Properties in Dense Phosphazene Polymer Membranes.},
author = {Orme, Christopher J and Stewart, Frederick F and Stone, Mark L and Harrup, Mason K and Luther, Thomas A and Peterson, Eric S},
abstractNote = {Polyphosphazenes are hybrid polymers having organic pendant groups attached to an inorganic backbone. Phosphazene polymers can be tailored to specific applications through the attachment of a variety of different pendant groups to the phosphazene backbone. Applications for which these polymers have proven useful include solid polymer electrolytes for batteries and fuel cells, as well as, membranes for gas and liquid separations. In past work, phosphazene polymers have been synthesized using mixtures of pendant groups with differing chemical affinities. Specific ratios of hydrophobic and hydrophilic pendant groups were placed on the phosphazene backbone with a goal of demonstrating control of solubility, and therefore chemical selectivity. In this work, a series of phosphazene homo-polymers were synthesized having varying amounts of hydrophobic and hydrophilic character on each individual pendant group. Polymers were synthesized having a hydrophilic portion next to the polymer backbone and the hydrophobic portion on the terminal end of the pendant group. The effects of these combined hydrophobic/hydrophilic pendant groups on polymer morphology and gas transport properties are presented. The following data will be addressed: thermal characterization, pure gas permeability on seven gases (Ar, H2, O2, N2, CO2, and CH4 ), and ideal selectivity for the gas pairs: O2/N2, H2/CO2, CO2/H2, CO2/CH4 and CO2/N2.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {10}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: