Information on amorphous area and recrystallization process of poly(ethylene terephthalate) solids revealed by means of fluorescence measurements

被引:15
作者
Itagaki, H
机构
[1] Department of Chemistry, Faculty of Education, Shizuoka University, Shizuoka 422
关键词
fluorescence; poly(ethylene terephthalate); amorphous; recrystallization;
D O I
10.1016/S0022-2313(96)00261-X
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The crystallinity of poly(ethylene terephthalate) (PET) solids was shown to be monitored by measuring PET fluorescence: fluorescence at 330 nm for crystal region and one at 370 nm for amorphous region. Thus, the recrystallization process of the amorphous region was directly observed by annealing PET films above 380 K. The time change of the crystallinity accompanied by the recrystallization process was best fitted to an exponential function; time constant at 390 K was determined to be 33 +/- 5 min.
引用
收藏
页码:435 / 436
页数:2
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