Rigidity Dependence of Alignment and Relaxation in Main-Chain Nonlinear Optical Polymers Measured by Optical and Electrical Method

The dynamics of two main-chain nonlinear optical polymers, PA-PS and PA-MS, was studied at various temperatures below T g . In the characterization, both the photo-induced isomerization method and second harmonic generation were employed. In the case of non-polar alignment by the linearly polarized...

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Bibliographic Details
Published in:Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals Molecular crystals and liquid crystals, 2000-09, Vol.349 (1), p.99-102
Main Authors: Choi, Hee-Jin, Lim, Tong Kun, Jeong, Mi-Yun, Wu, Jeong Weon, Lee, Kwang-Sup, Lee, Soo-Min, So, Bong-Keun
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Inorganic and organomineral polymers
main-chain polymer
Optical materials
Optics
Other nonlinear optical materials
photorefractive and semiconductor materials
photoisomerization
Physicochemistry of polymers
Physics
Polymers and organics
Properties and characterization
relaxation dynamics
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Summary:The dynamics of two main-chain nonlinear optical polymers, PA-PS and PA-MS, was studied at various temperatures below T g . In the characterization, both the photo-induced isomerization method and second harmonic generation were employed. In the case of non-polar alignment by the linearly polarized UV light, the main-chain of PA-PS polymer was found well re-aligned but the main-chain of PA-MS polymer was not, because of the high rigidity. In the case of polar alignment by in-situ corona poling technique, double exponential functions fit well to the data of both PA-PS and PA-MS polymer relaxation data at all the temperature range.
ISSN:1058-725X
DOI:10.1080/10587250008024875