Oxygen plasma resistant phosphine oxide containing imide/arylene copolymers

Technical Report · Fri Jan 01 04:00:00 EST 1993

OSTI ID:6349470

Jensen, B J

A series of oxygen plasma resistant imide/arylene ether copolymers were prepared by reacting anhydride-terminated poly(amide acids) and amine-terminated polyarylene ethers containing phosphine oxide units. Inherent viscosities for these copolymers ranged from 0.42 to 0.80 dL/g. After curing, the resulting copolymers had glass transition temperatures ranging from 224 C to 228 C. Solution cast films of the block copolymers were tough and flexible with tensile strength, tensile moduli, and elongation at break up to 16.1 ksi, 439 ksi, and 23 percent, respectively at 25 C and 9.1 ksi, 308 ksi and 97 percent, respectively at 150 C. The copolymers show a significant improvement in resistance to oxygen plasma when compared to the commercial polyimide Kapton. The imide/arylene ether copolymers containing phosphine oxide units are suitable as coatings, films, adhesives, and composite matrices.

• Research Organization: National Aeronautics and Space Administration, Hampton, VA (United States). Langley Research Center
• OSTI ID: 6349470
• Report Number(s): N-93-20300; NASA-TM--107712; NAS--1.15:107712; CNN: RTOP 506-43-11
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360604 -- Materials-- Corrosion
Erosion
& Degradation
360606* -- Other Materials-- Physical Properties-- (1992-)
CHEMICAL REACTIONS
COPOLYMERS
ELEMENTS
MECHANICAL PROPERTIES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDATION
OXYGEN
OXYGEN COMPOUNDS
PHOSPHINE OXIDES
PHOSPHINES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
POLYMERS
SYNTHESIS
TENSILE PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE