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Citation: QIU Zhao-Bin, SHENG Shou-Ri, YU Ying-Ning, SONG Cai-Sheng, MO Zhi-Shen. Crystallization and Polymorphism of Poly(ether ketone ether ketone ketone)s[J]. Chinese Journal of Applied Chemistry, ;2000, 17(2): 165-167. shu

Crystallization and Polymorphism of Poly(ether ketone ether ketone ketone)s

1.
a Polymer Physics Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022;
2.
b Department of Chemistry, Jiangxi Normal University , Nanchang

Received Date: 18 August 1999
Available Online: 30 November 1999
Fund Project: 国家自然科学基金(29674029) (29674029)国家"八六三"项目基金资助(863-2-7-3-3) (863-2-7-3-3)

PEKEKK(T) and PEKEKK(T/I) have two different crystal structures: a conventional Form Ⅰ structure, the same as that observed in PEEK, which is usually developed from melt crystallization, and a new Form Ⅱ structure which can be developed from cold crystallization or solvent induced crystallization(by exposing the glassy state sample to methylene chloride). PEKEKK(I) does not show polymorphism.
- poly(aryl ether ketone),
- crystal structure,
- crystallization,
- polymorphism
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