Synthesis of poly(arylene ether ketone)s containing trifluoromethyl groups via nitro displacement reaction

Macromolecules

Volumn 31, Issue 10, 1998, Pages 3385-3387

  Park, Sun Kyu ^a   Kim, Sang Youl ^a  

^a Korea Advanced Institute of Science and Technology (KAIST)   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000455782     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma9717597     Document Type: Article

References (16)

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3. Cotter, R. J. Engineering Plastics: A Handbook of Polyaryl ethers; Gordon and Breach Publishers: Amsterdam, 1995; p 20.
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5. Radlmann, V. E.; Schmits, W.; Nischk, G. E. Makromol. Chem. 1969, 130, 45.
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10. (d) White, D. M.; Takekoshi, T.; Williams, F. J.; Relles, H. M.; Donahue, P. E.; Klopfer, H. J.; Loucks, G. R.; Manello, J. S.; Matthews, R. O.; Schluenz, R. W. J. Polym. Sci., Polym. Chem. Ed. 1981, 19, 1635-1658.
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14. 2, syst), 1290, 1259, 1154, 1047, 936, 852, 732.
15. -1): 3068, 1660 (C=O), 1609, 1580, 1486, 1329, 1292, 1258 (C-O-C, asy st), 1139, 1120 (C-O-C, sy st), 1052, 962, 734, 662.
16. Polymer 5 synthesis with Bisphenol A: The mixture of Bisphenol A (0.6682 g, 2.9294 mol), potassium carbonate (0.8080 g, 5.8588 mmol) in 6 mL of anhydrous DMSO and 6 mL of benzene for azeotropic distillation of water was mechanically stirred at 140-150 °C for 2 h under an argon atmosphere. After the reaction mixture was cooled to room temperature, the monomer (3, 1.500 g, 2.9294 mmol) was added to the solution with 2 mL of DMSO and then stirred at the ambient temperature for 2 h. The temperature was raised to 80 °C, and the stirring was continued for several hours until the solution became viscous. The temperature was then raised to 120 °C, and the stirring was continued for an additional 4 h. A small amount of 2-nitrobenzotrifluoride was added to the solution for end-capping of polymer, and the stirring was maintained for additional 1 h at this temperature. The reaction mixture was cooled to room temperature, acidified with 1 mL of acetic acid, and precipitated into water. The polymer was collected by filtration and washed many times with water, methanol, and acetone. Further purification was carried out by dissolving the polymer in THF, filtering the polymer solution, and then precipitating it into methanol/acetone mixture. The obtained polymer was dried in a vacuum oven at 120 °C to give 1.68 g in 89% yield.