Time–temperature–transformation (TTT) cure diagrams: Relationship between  T   g   and the temperature and time of cure for a polyamic acid/polyimide system | Zendy

Palmese G. R. | Zendy; Gillham J. K. | Zendy

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Time–temperature–transformation (TTT) cure diagrams: Relationship between T g and the temperature and time of cure for a polyamic acid/polyimide system

Author(s) -

Palmese G. R.,

Gillham J. K.

Publication year - 1987

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1987.070340511

Subject(s) - vitrification , polyimide , isothermal process , materials science , glass transition , isothermal transformation diagram , solvent , polymer chemistry , thermodynamics , composite material , chemical engineering , polymer , chemistry , organic chemistry , microstructure , medicine , austenite , bainite , physics , layer (electronics) , engineering , andrology

Glass transition temperatures ( T g ) were obtained vs. isothermal temperature ( T cure ) and time of cure for a polyamic acid/polyimide system. A time–temperature–transformation (TTT) isothermal cure diagram was constructed to include the time to vitrification and iso‐ T g curves. As for expoxies, the relationship between T cure and the time to vitrification is S‐shaped. Plots of T g vs. T cure show that solvent evaporation and chemical reaction are controlled by vitrification.

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