Synthesis of poly(thioether thioether ketone) (PTTK) starting from hydroquinone

Macromolecules

Volumn 31, Issue 8, 1998, Pages 2690-2692

  Ding, Yong ^a,b   Hay, Allan S ^a  

^a MCGILL UNIVERSITY   (Canada)

^b University of Arizona   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CESIUM COMPOUNDS; CRYSTALLIZATION; MOLECULAR WEIGHT; ORGANIC SOLVENTS; POLYMERIZATION; SYNTHESIS (CHEMICAL); VISCOSITY;

CESIUM CARBAMATE; HYDROQUINONE; POLYTHIOETHER THIOETHER KETONES;

POLYETHER ETHER KETONES;

EID: 0032045409     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma9715177     Document Type: Article

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25. Typical experimental procedure: Into a 50 mL three neck round-bottom flask equipped with a nitrogen inlet, a magnetic stirrer, a Dean-Stark trap and a condenser were charged 4, 4′-difluorobenzophenone (0.6546 g, 3.00 mmol), 3 (0.8532 g, 3.00 mmol), benzophenone (8.0 g), cesium carbonate (0.10 g, 0.3 mmol), and calcium carbonate (0.90 g, 9.0 mmol). The mixture was heated at 200 °C for 1 h, and then it was raised to 250 °C for another 1 h. Finally, the temperature was raised to 300 °C to keep the polymer in solution and kept at that temperature for 4 h. The mixture was cooled, washed consecutively with 100 mL of hot acetone, 100 mL of 5% aqueous HCl, 200 mL of water, and 100 mL of hot acetone. After drying at 100 °C in vacuo for 24 h, a quantative yield of an off-white powder polymer was obtained.
26. 2.