Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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New Polyarylates Prepared from 2,5-Bis($\alpha$-phenylisopropyl)hydroquinone, Terephthalic Acid and Isophthalic Acid

  • Published : 19950100
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Abstract

A new series of polyarylate copolyesters were prepared by melt polycondensation of 1,4-diacetoxy-2,5-(α-phenylisopropyl)benzene with mixture of terephthalic acid and isophthalic acid in varying ratio. And their general properties such as the glass transition temperature, crystalline melting temperature, crystallinity and solubility were studied. The intrinsic viscosity values of the present polymers measured in a mixed solvent of phenol/p-chlorophenol/1,1,2,2-tetrachloroethane ranged from 0.45 to 0.66 depending on the composition and molecular weight. The copolyesters containing greater than 20 mole % of isophthalic acid were found to be amorphous, whereas the homopolymer derived from terephthalic acid was semicrystalline with a melting point of 414℃. The glass transition temperatures of the polymers ranged from 165 to 180℃ depending on the composition. The copolyesters containing 50 mole % and greater of isophthalic acid moiety were soluble at room temperature in such common solvents as tetrahydrofuran, chloroform and N,N-dimethylformamide.

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References

  1. Polyesters Korshak, V. V.;Vinogradova, S. V.
  2. The Chemical Structure and Thermal Characterization of Polymers Israel Program for Scientific Translations Korshak, V. V.
  3. Comprehensive Polymer Science v.5 Dean, B. D.;Matzner, M.;Tibbitt, J. M.;Eastmond, G. C.(ed.);Ledwith, A.(ed.);Russo, S.(ed.);Sigwalt, P.(ed.)
  4. Polymer v.15 Bier, G.
  5. Ind. Engr. Chem. v.51 Conix, A.
  6. J. Polym. Sci. v.28 Levine, M.;Temin, S. S.
  7. J. Polym. Sci.: Part A v.2 Morgan, P. W.
  8. Macromolecules v.3 Morgan, P. W.
  9. J. Polym. Sci. v.40 Eareckson, W. M.
  10. Europ. Polym. J. v.6 Weyland, H. G.;Hoefs, C. A.;Yutema, K.;Mip, W. L.
  11. J. Polym. Sci. A-1 v.9 Cohen, S. M.;Young, R. H.;Markhart, A. H.
  12. Polym. Rev. v.10 Morgan, P. W.
  13. Angew. Chem. Int. Ed. Engl. v.1 Staab, H. A.
  14. Polym. J. v.13 Ogata, N.;Sanui, K.;Tanaka, H.
  15. J. Polym. Sci., Polym. Chem. Ed. v.18 Higashi, F.;Kubota, K.;Sekizuka, M.;Higashi, M.
  16. J. Polym. Sci., Polym. Chem. Ed. v.24 Higashi, F.;Fujiwara, Y.;Yamada, Y.
  17. J. Polym. Chem. Ed. v.25 Tsai, H.-B.;Lee, Y.-D.
  18. U.S. Pat., 3234168 Hare, W. H.;E. I. DuPont de Nemours and Co.
  19. U.S. Pat., 4051107 Pawalk, J. A.;Lemper, A. L.;Pattison, V. A.;Hooker Chemicals and Plastics Corp.
  20. Polym. Preprints(ACS) v.5 Golberg, E. P.;Strause, S. F.;Munro, H. E.
  21. J. Appl. Polym. Sci. v.9 Matzner, M.;Barclay, R. Jr.
  22. U. S. Pat., 3160605 Kantor, S. W.;Holub, F.F.;General Electric Co.
  23. U. S. Pat., 4533720 Yu, M. C.;Phillips Petroleum Co.
  24. U. S. Pat., 4294956 Berger, M. H.;Gill, P. J.;Maresca, L. M.;Union Carbide Corp.
  25. U. S. Pat., 4067852 Calundann, G. W.;Celanese Corp.
  26. Angew. Chem. v.68 Schnell, H.
  27. U. S. Pat., 3395119 Blaschke, F.;Ludwig, W.;Chemische Werke Witten G.m. b. H.
  28. U. S. Pat., 4436894 Uraski, T.;Hirabayoshi, Y.;Yoshida, T.;Inata, H.;Teijin Ltd.
  29. U. S. Pat., 4661645 Lee, D. M.
  30. Chem. Ber. v.90 Buchta, E.;Egger, H.