引用本文:
杨春才, 王化滨, 景遐斌, 王佛松, 李加, 王淑梅, 邢汝斌. 多异氰酸酯交联型二阶非线性光学聚合物中的极化与松弛[J]. 应用化学,
1995, 12(3): 23-27.
Citation: Yang Chuncai, Wang Huabin, Jing Xiabin, Wang Fosong, Li Jia, Wang Shumei, Xing Rubin. Orientaion and Relaxation in a Polyisocyanate-Crosslinked Second Order Nonlinear Optical Polymer[J]. Chinese Journal of Applied Chemistry, 1995, 12(3): 23-27.
Citation: Yang Chuncai, Wang Huabin, Jing Xiabin, Wang Fosong, Li Jia, Wang Shumei, Xing Rubin. Orientaion and Relaxation in a Polyisocyanate-Crosslinked Second Order Nonlinear Optical Polymer[J]. Chinese Journal of Applied Chemistry, 1995, 12(3): 23-27.
多异氰酸酯交联型二阶非线性光学聚合物中的极化与松弛
摘要:
通过4,4'-硝基偶氮苯甘油单醚与六亚甲基二异氰酸酯的缩二脲在电场下极化交联反应合成交联型二阶非线性光学聚合物。利用二次谐波和紫外可见吸收光诸对该聚合物的取向及松弛进行了研究。测试了二阶非线性极化率χ(2)、二阶非线性光学系数d33和电光系数γ33表明上述极化交联聚合物的d33在10-8~10-7esu,在测试时间范围内基本不随时间而衰减.
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关键词:
- 交联聚合物
- / 二次谐波
- / 二阶非线性光学系数d33
- / 电光系数γ33
English
Orientaion and Relaxation in a Polyisocyanate-Crosslinked Second Order Nonlinear Optical Polymer
Abstract:
The orientation and relaxation of a crosslinked and poled polymer based on the re-action of glycerin monoether of 4-[(p-nitrophenyl)azo]phenol with biuret of hexamethylene diisocyanate have been studied by UV-Vis spectra and second harmonic generation(SHG) techniques. Second order nonlinear susceptibility χ2, second harmonic coefficient d33 and electro-optic coefficient γ33 were determined. The d33 of the crosslinked and poled polymer was in the range of 10-8~10-7esu and kept constant for a period of 100h after poling and crosslinking.
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