Oxy- and Thioaryl-Phenylated Aromatic Heterocyclic Polymers.
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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Acetylene-terminated compounds show promise for use in the preparation of matrix resins and adhesives for advanced aircraft and aerospace systems, and for other high-temperature applications. These compounds can be polymerized thermally without the evolution of volatile by-products, thereby obviating the problem of void formation in composite structures and molded articles. Although many of the aromatic, heterocyclic, and aromaticheterocyclic polymers exhibit superior mechanical and thermal properties, many of these polymers exhibit the disadvantages that they are soluble only in polar solvents, generally strong acids, which is a disadvantage from a processing standpoint.
- Polymer Chemistry