Information on Microenvironment in Amorphous Region of Polymer Films Revealed by PFR Method
Information on Microenvironment in Amorphous Region of Polymer Films Revealed by PFR Method
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PFR方法揭示聚合物薄膜非晶区微环境信息
DOI：
10.1002/masy.201400250
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发表时间：
2016
影响因子：
--
通讯作者：
Hideyuki Itagaki and Tomohiro Sago
中科院分区：
文献类型：
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作者：
堀口結以;辻真平;高橋紳矢;武野明義;Hideyuki Itagaki and Tomohiro Sago
通过绕激发光束旋转样品来测量样品中生色团的偏振荧光强度，即PFR方法，对于确定生色团在薄膜中的三维排列是非常有效的。我们应用PFR方法来监测聚合物薄膜中无定形区域的荧光物种的取向。本文特别回顾了用PFR方法获得的两个成功的研究：(I)薄膜单轴拉伸引起的非晶区微环境的变化；(Ii)单向拉伸的聚对苯二甲酸乙二酯薄膜冷结晶的初始阶段。
Measurement of thepolarized fluorescence intensities of chromophores in a sample byrotating the sample around the excitation light beam, i.e., the PFR method, is very efficient for determining the three‐dimensional arrangement of the chromophores in the film. We have applied the PFR method to monitor the orientation of fluorescent species in amorphous regions of polymer films. In particular, the present paper reviews two successful studies obtained by PFR method: (i) the microenvironmental change of amorphous regions induced by uniaxially stretching of the films, and (ii) the initial stage of the cold crystallization of poly(ethylene terephthalate) films stretched uniaxially.