Synthesis and nonlinear optical properties of novel Y-type polyurethanes with high thermal stability of dipole alignment
β Scribed by Ju-Yeon Lee; Jin-Hyang Kim; Won-Taek Jung; Young Kum Park
- Publisher
- Springer
- Year
- 2007
- Tongue
- English
- Weight
- 391 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0022-2461
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π SIMILAR VOLUMES
Novel dial monomer having a n-conjugated benzoxazole ring, 2-(4-nitrophenyl)-6-IN,N-bis(2-hydroxyethyl)amino]benzoxazole was successfully synthesized to improve the thermally stability of nonlinear optical chromophores. Several polyurethanes bearing pendant benzoxazole chromophores were obtained by
## Abstract A highly thermally and temporally stable, secondβorder, nonlinearβoptical polyimide with an Xβtype chromophore (2β{4β[4,5βdi(4βnitrophenyl)imidazolyl]phenyl}β4,5βdi(4βaminophenyl)imidazole) was synthesized by the Michael addition reaction. The structure of the prepolymer was characteriz