Synthesis of diacetylene-containing polyimides
- Georgia Institute of Technology, Atlanta, GA (United States)
Polyimides with diacetylenes incorporated along their backbones have been prepared by two different routes: (1) polyimidization of a dianhydride with a diacetylene-containing diamine, and (2) oxidative coupling of an {alpha},{omega}-diyne diimide. The route for a specific polyimide was chosen to facilitate synthesis and molecular-weight control (necessary to ensure processability). Systematic analyses of polymer structures are being conducted to evaluate their influences on diacetylene reactivity, material processability, and thermal stability. It is found that the chain structure of the aliphatic unit connecting the diacetylene group to the remainder of the chain plays a critical role in determining these properties of the system. The goal is to use these materials as processable high-temperature gas-separation membranes in which gas permeability/selectivity may be tailored by controlling the degree and spatial distribution of diacetylene crosslinking.
- OSTI ID:
- 215164
- Report Number(s):
- CONF-950801-; TRN: 96:000922-0687
- Resource Relation:
- Conference: 210. national meeting of the American Chemical Society (ACS), Chicago, IL (United States), 20-25 Aug 1995; Other Information: PBD: 1995; Related Information: Is Part Of 210th ACS national meeting. Part 1 and 2; PB: 1866 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Gas-separation applications of miscible blends of isomeric polyimides
Soluble fluorinated polyimides that contain curable acetylene units in the backbone