Crystallization kinetics of PEO-alkaline perchlorate solutions observed by energy dispersive x-ray diffraction

被引:17
作者
Albertini, VR [1 ]
Appetecchi, GB [1 ]
Caminiti, R [1 ]
Croce, F [1 ]
Cilloco, F [1 ]
Sadun, C [1 ]
机构
[1] UNIV ROMA LA SAPIENZA,DIPARTIMENTO CHIM,IST NAZL FIS MAT,I-00185 ROME,ITALY
来源
JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS | 1997年 / 36卷 / 05期
关键词
D O I
10.1080/00222349708220446
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 crystallization kinetics of poly(ethylene oxide) doped with various alkaline perchlorate salts were measured at room temperature by means of the new energy dispersive x-ray diffraction method for the phase transition. The experimental points of the transformation coordinate were fitted using the phenomenological Liquori-Tripiciano law, the parameters of which were evaluated for each case. The influence of the concentration and of the cation dimensions on the crystallization rate is discussed. Further details about the application of this nonconventional diffractometric technique to polymers are also reported, as is an intuitive model for describing the method.
引用
收藏
页码:629 / 641
页数:13
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