Synthesis of fluorene‐based high performance polymers. I. Poly(arylene thioether)s with excellent solubility and high refractive index |
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| Authors: | Surasak Seesukphronrarak Shinichi Kawasaki Kana Kobori Toshikazu Takata |
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| Institution: | 1. Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Ookayama, Meguro‐ku, Tokyo 152‐8552, Japan;2. Advanced Material Business Promotion Department, Osaka Gas Co., Ltd., Konohana‐ku, Osaka 554‐0051, Japan;3. Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Ookayama, Meguro‐ku, Tokyo 152‐8552, JapanDepartment of Organic and Polymeric Materials, Tokyo Institute of Technology, Ookayama, Meguro‐ku, Tokyo 152‐8552, Japan |
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| Abstract: | Several poly(arylene thioether)s ( PTEs ) containing a fluorene moiety were synthesized by the polycondensation of masked dithiols such as 9,9‐bis(4‐(N,N‐dimethyl‐S‐carbamoyl)phenyl)fluorene and various difluoroarenes. All PTEs were obtained in quantitative yields. The PTEs showed good thermal stability: the 10% weight loss temperature was over 480 °C under both nitrogen and air atmosphere by TGA, and glass temperature was within a range of 204–275 °C by DSC. Most PTEs exhibited remarkably high refractive index values in a range of 1.66–1.72 at 589 nm, whereas they had a very low degree of birefringence properties. Furthermore, the PTEs showed high solubility in ordinary organic solvents such as chloroform, N‐methylpyrrolidone, and tetrahydrofuran. © 2007 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 45: 3073–3082, 2007 |
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| Keywords: | fluorene skeleton optical property poly(arylene thioether) solubility thermal stability |
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