Orientaion and Relaxation in a Polyisocyanate-Crosslinked Second Order Nonlinear Optical Polymer

Chinese Journal of Applied Chemistry ›› 1995, Vol. 0 ›› Issue (3): 23-27.

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Orientaion and Relaxation in a Polyisocyanate-Crosslinked Second Order Nonlinear Optical Polymer

Yang Chuncai¹, Wang Huabin¹, Jing Xiabin¹, Wang Fosong¹

Polymer Physics Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022;
2. Changchun Institute of Physics, Chinese Academy of Sciences, Changchun

Received:1994-08-18 Revised:1995-01-17 Published:1995-06-10 Online:1995-06-10

Abstract

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 hexamethylenediisocyanate have been studied by UV-Vis spectra and second harmonic generation (SHG)techniques.Second order nonlinear susceptibility χ⁽²⁾,second harmonic coefficient d₃₃ andelectro-optic coefficientγ₃₃ were determined.The d₃₃ of the crosslinked and poled polymerwas in the range of 10^-8～10^-7 esu and kept constant for a period of 100h after poling and crosslinking.

Key words: crosslinked polymer, second harmonic generation, second harmonic coefficient, electro-optic coefficient

Yang Chuncai, Wang Huabin, Jing Xiabin, Wang Fosong. Orientaion and Relaxation in a Polyisocyanate-Crosslinked Second Order Nonlinear Optical Polymer[J]. Chinese Journal of Applied Chemistry, 1995, 0(3): 23-27.

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Orientaion and Relaxation in a Polyisocyanate-Crosslinked Second Order Nonlinear Optical Polymer

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