Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Thermally stable polymers terminal acetylene

Polyphenylquinoxalines (PPQ s) were first prepared in 1967 by Hergenrother (56). In 1975, Koval et al. (57,58) introduced the acetylene-terminated PPQ (ATPQ) (Pig. 10), which is the addition type of PPQ. Resembling ATPI, ATPQ also has shortcomings. The ethynl group hinders the flow of the polymer chain, and the cured ATPQ is less thermal-oxidatively stable than the comparable PPQ. The detailed status of PPQ, as well as other high-temperature adhesives, is discussed by Hergenrother (45). ... [Pg.15]

See other pages where Thermally stable polymers terminal acetylene is mentioned: [Pg.8]    [Pg.63]    [Pg.325]    [Pg.690]    [Pg.102]    [Pg.536]    [Pg.223]    [Pg.456]   


SEARCH



ACETYLENE TERMINATION

Acetylene-terminated

Terminal acetylenes

Thermally stable polymers

© 2024 chempedia.info