Abstract
Poly(oxy-1,4-phenylene-carbonyl-1,4-phenylene-oxy-1,4-phenylene-carbonyl-1,4-phenylene-carbonyl-1,4-phenylene) (PEKEKK) was heated in the presence of potassium carbonate at 340°C to yield another aromatic polyetherketone, which contained not only the original EKEKK repeating unit but also the EK and EKK repeating units. This indicates that trans-etherification reaction occurs between molecules of PEKEKK. Poly(oxy-1,4-phenylene-carbonyl-1,4-phenylene) (PEK) reacted with poly(oxy-1,4-phenylene-sulfonyl-1,4-phenylene) (PES) in the presence of potassium carbonate at 300°C to yield a trans-etherification product, i.e., a block copolymer of P(EK)/(ES). A further reaction decreased the crystallinity of the block copolymer to yield a random copolymer.
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T. E. Attwood, P. C. Dawson, J. L. Freeman, L. R. J. Hoy, J. B. Rose, and P. A. Staniland, Polymer, 22, 1103 (1981).
J. P. Jog and V. M. Nadkarni, J. Appl. Poly. Sci., 32, 3317 (1986).
J. B. Rose, Recent Advances in Mechanistic and Synthetic Aspects of Polymerization, 207 (1987).
P. A. Staniland, Bull. Soc. Chim. Belg., 98, 667 (1989).
T. E. Attwood, P. C. Dawson, J. L. Freeman, L. R. J. Hoy, J. B. Rose, and P. A. Staniland, Polymer, 22, 1096 (1981).
J. B. Rose, US Patent 4,010,147 (1977).
I. Fukawa and T. Tanabe, US Patent 4,757,126 (1988).
W. H. Bonner, US Patent 3,065,205 (1962).
I. Goodman, J. E. McIntyre, and W. Russell, Br. Patent 971,227 (1964).
K. J. Dahl, Br. Patent 1,387,303 (1975).
J. Viktors and G. Heinrich, WO 81/03891 (1981).
Z. Wu, Y. Zheng, H. Yan, R. Nakamura, T. Nozawa, and R. Yosomiya, Angew. Makromol. Chem., 173, 163 (1989).
A. Bunn, Br. Polym. J., 20, 307 (1988).
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Fukawa, I., Tanabe, T. & Hachiya, H. Trans-Etherification of Aromatic Polyetherketone and Trans-Etherification between Aromatic Polyetherketone and Aromatic Polyethersulfone. Polym J 24, 173–186 (1992). https://doi.org/10.1295/polymj.24.173
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DOI: https://doi.org/10.1295/polymj.24.173