Synthesis and properties of oligomeric poly(glycidyl ether)s with a carbazole-based multifunctional photorefractive chromophore
| Autor: | Choon Sup Yoon, Junho Mun, Hyunsik Moon, Jiwon Sohn, Soo Young Park |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Materials science
Polymers and Plastics Carbazole General Chemical Engineering Poling Cationic polymerization General Chemistry Photorefractive effect Chromophore Photochemistry Biochemistry Ring-opening polymerization chemistry.chemical_compound chemistry Materials Chemistry Environmental Chemistry Thermal stability Polymer blend |
| Zdroj: | Reactive and Functional Polymers. 45:109-117 |
| ISSN: | 1381-5148 |
| DOI: | 10.1016/s1381-5148(00)00017-1 |
| Popis: | Novel photorefractive poly(glycidyl ether) oligomers of a carbazole-based multifunctional chromophore were synthesized via ring-opening cationic polymerization. This new class of materials showed good solubility in various organic solvents and thermal stability up to 400°C. Optical quality films of excellent transparency at the light wavelength above 430 nm were obtained by spin-coating or casting. Photoconductive sensitivity of the film was as high as 10−13 S cm−1/mW cm−2 at 532 nm. Electrooptic coefficients (r33) of 5–7 pm V−1 were easily achieved by the contact poling of spin-coated films. As evidence of photorefractivity, an asymmetric two-beam coupling gain of 3.2 cm−1 was demonstrated at an electric field of 30 V μm−1 with a low-Tg polymer blend of multifunctional poly(glycidyl ether). |
| Databáze: | OpenAIRE |
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