Synthesis, characterization and optical properties of fluorinated poly(aryl ether)s containing phthalazinone moieties |
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Authors: | Yuan Song Guanghui Li Xigao Jian Jie Teng Hongbo Zhang |
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Affiliation: | a Department of Polymer Science & Materials, Dalian University of Technology, Dalian 116012, PR China b School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116023, PR China c Photonics Research Center, Dalian University of Technology, Dalian 116023, PR China |
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Abstract: | A series of novel fluorinated poly(aryl ether)s containing phthalazinone moieties (FPPEs) have been prepared by a modified synthetic procedure for optical waveguide applications. The obtained random copolymers exhibited excellent solubility in polar organic solvents, high glass transition temperatures (Tgs: 185-269 °C), good thermal stabilities (the temperatures of 1% weight loss: 487-510 °C) and good optical properties. By adjusting the feed ratio of the reactants, the refractive indices of TE and TM modes (at 1550 nm) could be well controlled in the range of 1.575-1.498 and 1.552-1.484, respectively. The optical losses of the FPPEs exhibited relatively low values (less than 0.27 dB/cm at 1310 nm). Additionally, the thermo-optic coefficient (dn/dT) values of the FPPEs at 1310 nm and 1550 nm (TE mode) ranged from −0.97 × 10−4 °C to −1.33 × 10−4 °C and from −0.96 × 10−4 °C to −1.29 × 10−4 °C, respectively. |
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Keywords: | Polymer optical waveguide Fluorinated poly(aryl ether) Phthalazinone |
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