Polyimides and their derivatives for gas separation applications

Conference · Sun Jul 01 04:00:00 EDT 2007

OSTI ID:927637

Klaehn, J R; Orme, C J; Luther, T J; Peterson, E S; Urban-Klaehn, Jagoda M

High performance polymers are of interest for high temperature gas separations, especially for the sequestration of carbon dioxide. A new family of high performance imide polymers (VTEC, RBI Inc.) has been identified as a material class containing the potential building blocks needed for a successful membrane capture material. The VTEC polyimides possess the desired thermal properties (up to 500 °C) and are robust and flexible even after multiple thermal cycles (up to 400 °C). A critical variable when working with the glassy polymers is their moisture content. It has been found that water entrapped within the polymer matrix (either as hydration molecules attached to salts in the polymer, left over solvent, or physisorbed) can also cause the polymer to change dramatically. Additionally presence of molecular water in the polymer’s void volume has been validated through Positron Annihilation Lifetime (PAL) spectroscopy. In this presentation, polymer characterization and gas-separation testing results will be discussed.

• Research Organization: Idaho National Laboratory (INL)
• Sponsoring Organization: DOE - FE
• DOE Contract Number: AC07-99ID13727
• OSTI ID: 927637
• Report Number(s): INL/CON-07-12358
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
20 FOSSIL-FUELED POWER PLANTS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ANNIHILATION
CARBON DIOXIDE
CO2 Sequestration
Fossil Energy
HYDRATION
IMIDES
LIFETIME
MEMBRANES
MOISTURE
PERFORMANCE
POLYMERS
POSITRONS
SPECTROSCOPY
Separations
TESTING
THERMODYNAMIC PROPERTIES
WATER
polymer membranes