1. [Untitled]
- Author
-
Jacques A. Delaire, Zhai Jianfeng, Qiu Ling, Zhao Yuxia, Li Zao, Keitaro Nakatani, Yomen Atassi, Zhang Xinxin, and Shen Yuquan
- Subjects
Azo compound ,Materials science ,Mechanical Engineering ,Substituent ,Second-harmonic generation ,Nonlinear optics ,Chromophore ,Polyester ,Crystallography ,chemistry.chemical_compound ,chemistry ,Azobenzene ,Mechanics of Materials ,Side chain ,Organic chemistry ,General Materials Science - Abstract
The second harmonic coefficient d33 values of a series of polyester nonlinear optical (NLO) polymers, differing in their electron withdrawing substituent, were experimentally measured. The observed order of contribution of the substituents towards d33 value was rationalized by a frequency factor dependence. Excellent photostability and the highest d33 value among the series have been found for the polyester with 2,4-dinitro substituents in the side chain. A possible influence of intermolecular interaction is also indicated.
- Published
- 1999
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