Synthesis of Organosoluble Polyimides and Optical Fiber Protective Coatings on Their Basis
| Autor: | Ya. S. Vygodskii, B. A. Bayminov, Sergey L. Semjonov, O. N. Zabegaeva, Alexey F. Kosolapov, A. V. Chuchalov, D. A. Sapozhnikov |
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| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Optical fiber Materials science Polymers and Plastics 02 engineering and technology Polymer engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention Prolonged exposure Coating Chemical engineering chemistry law Materials Chemistry Ceramics and Composites engineering Thermal stability Solubility 0210 nano-technology High heat |
| Zdroj: | Polymer Science, Series B. 62:39-46 |
| ISSN: | 1555-6123 1560-0904 |
| DOI: | 10.1134/s1560090420010078 |
| Popis: | Homo- and copolyimides containing F, Cl, or Si atoms and COOH, OH, and cardo groups are synthesized by one-step high-temperature polycyclocondensation. It is shown that the structure of the polymer affects its solubility, thermal, mechanical, and optical properties and use as a coating. The resulting polymers with ηinh = 0.3–1.3 dL/g are characterized by high heat resistance and thermal stability (240°C ≤ Tg ≤ 375°C, 440°C ≤ T10% ≤ 580°C) and also form high-strength films (55 MPa ≤ σ ≤ 140 MPa; 1.1 GPa ≤ E ≤ 2.8 GPa). The developed polyimides are promising as new highly thermostable protective coatings, in particular, of optical fibers, whose mechanical properties do not change after prolonged exposure at 300°C. |
| Databáze: | OpenAIRE |
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