Second-order nonlinear optical polyimides with high thermal stability

被引：15

作者：

Zhu, PW ^{[1
]}

Wang, P ^{[1
]}

Wu, W ^{[1
]}

Ye, C ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Organ Solids Lab, Ctr Mol Sci, Beijing 100080, Peoples R China

来源：

JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS | 1999年 / 8卷 / 04期

关键词：

D O I：

10.1142/S0218863599000333

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Two high T-g (250 degrees C and 258 degrees C) polyimides embedded with triphenyl imidazole chromophores were synthesized through addition polymerization. Simultaneous poling and polymerization and in situ second harmonic generation measurement technology were carried on to evaluate the thermal stability of the poling induced orientations. Moderate d(33) values of 15 pm/V and 16 pm/V were determined. The SHG signals of these poled polymer films are without any decay at temperature lower than 150 degrees C, it begins to relax rapidly over 195 degrees C. The half-decay temperatures of the samples' orientation are as high as 240 degrees C and 224 degrees C respectively.

引用

页码：461 / 468

页数：8

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