Molecular size effects of diarylnitrone additive on the refractive-index change in poly(methyl methacrylate) film

被引：6
|
作者：
Tanaka, K [1 ]
Fukuda, M
Igarashi, T
Sakurai, T
机构：
[1] Kanagawa Univ, High Tech Res Ctr, Kanagawa Ku, Yokohama, Kanagawa 2218686, Japan
[2] Kanagawa Univ, Fac Engn, Dept Appl Chem, Kanagawa Ku, Yokohama, Kanagawa 2218686, Japan
来源：
POLYMER JOURNAL | 2005年 / 37卷 / 10期
关键词：
diarylnitrones; photochemistry; refractive index; polymer film; molecular size;
D O I：
10.1295/polymj.37.776
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Through a UV spectral analysis of the photorearrangement reactions in hydroxy- and methoxy-substituted diarylnitrones, it was found that the maximum wavelength of the first absorption band in these nitrone derivatives solubilized into poly(methyl methacrylate) film can be used as a measure of the refractive-index change which is directly related to the change in linear polarizability. It was also found that steric bulkiness of the alkyl substituent attached at the para-position on the N-aryl benzene ring contributes to the magnitude of refractive-index change to only a negligible extent.
引用
收藏
页码：776 / 781
页数：6
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