Crystal structure and crystallinity of poly(aryl ether biphenyl ether ketone ketone)

被引：5
|
作者：
Liu, TX [1 ]
Mo, ZS [1 ]
Wang, SG [1 ]
Zhang, HF [1 ]
Na, H [1 ]
Wu, ZW [1 ]
机构：
[1] JILIN UNIV,DEPT CHEM,CHANGCHUN 130023,PEOPLES R CHINA
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 1997年 / 18卷 / 01期
关键词：
D O I：
10.1002/marc.1997.030180104
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The crystal structure of poly(aryl ether biphenyl ether ketone ketone) (PEDEKK) was determined to comprise a two-chain orthorhombic unit cell with dimensions a 0.778 nm, b = 0.606 nm and c = 2.375 nm by using wide-angle X-ray diffraction (WAXD). According to the orthorhombic system, the 12 reflections of this polymer were indexed. The crystallite size increases with increasing the crystallization temperature. The results of the degree of crystallinity (W-c,W-x) calculated from WAXD were compatible with those from density (W-c,W-d) and calorimetry (W-c,W-h) measurements.
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页码：23 / 30
页数：8
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