The isothermal melt and cold crystallization kinetics of poly(aryl ether ketone ether ketone ketone) are investigated by differential scanning calorimetry over two temperature regions. The Avrami equation describes the primary stage of isothermal crystallization kinetics with the exponent n Ϸ 2 for
Interdependencies between the Evolution of Amorphous and Crystalline Regions during Isothermal Cold Crystallization of Poly(ether−ether−ketone)
✍ Scribed by Ivanov, Dimitri A.; Legras, Roger; Jonas, Alain M.
- Book ID
- 121504233
- Publisher
- American Chemical Society
- Year
- 1999
- Tongue
- English
- Weight
- 174 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0024-9297
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
We have established time-temperature transformation and continuousheating transformation diagrams for poly(ether-ether-ketone) (PEEK) and PEEK/ poly(ether-imide) (PEI) blends, in order to analyze the effects of relaxation control on crystallization. Similar diagrams are widely used in the field of t
Physical aging of poly(aryl ether ether ketone ketone) (PEEKK) has been investigated. Heat flow responses were measured after annealing the amorphous samples obtained by quenching the melt into an ice-water bath close to, but below, the glass transition temperature. The extent of aging is related to
## Abstract The evolution of crystallinity and polymorphism during hot‐drawing of amorphous poly(ether ether ketone ketone) (PEEKK) as a function of strain rate, draw ratio, and temperature was investigated. In modification I, the competition of chain extension and molecular alignment is responsibl