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Physical aging of epoxy resin blended with poly(ether sulfone): Effect of poly(ether sulfone) molecular weight

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Abstract

The physical aging process of 4-4′-diaminodiphenylsulfone (DDS) cured diglycidyl ether bisphenol-A (DGEBA) blended with various molecular weights of poly(ether sulfone) (PES; Mn = 28,600, 10,600, and 6,137) was studied by DSC. For DGEBA/DDS system blended with a low MW PES-3 (Mn = 6,137), no phase separation of the polymer blend and only one enthalpic relaxation process due to physical aging was observed. Since the high MW PES-1 (Mn = 28,600) had a Tg close to that of fully cured DGEBA/DDS, the fully cured DGEBA/DDS/PES-1 blend had a broader glass transition than a neat DGEBA/DDS system. However, the DSC results showed two enthalpic relaxation processes due to the physical aging of PES-rich and cured epoxy-rich phases as the material was aged at 155 °C (30 °C below Tg). Since the Tgs of PES-1-rich and epoxy-rich phases overlapped with each other, the enthalpic relaxation processes corresponding to each phase coupled to each other in the earlier stage of physical aging. The medium MW PES-2 (Mn = 10,600) has a much lower Tg than that of fully cured DGEBA/DDS, two well separated Tgs were observed for the cured DGEBA/DDS/PES-2 blend, indicating the cured epoxy was immiscible with PES. Aging the polymer blend at 155 °C (24 °C below Tg1 of the PES-2-rich phase and 53 °C below Tg2 of the epoxy-rich phase) produced two well separated relaxation processes due to PES-2-rich and epoxy-rich phases. The experimental results suggested that aging the polymer blend at a suitable temperature would improve the phase separation between PES-1-rich and epoxy-rich phases.

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References

  1. L. C. E. Struik, Physical aging in amorphous polymers and other materials, Amsterdam, 1978.

  2. A. S. Marshall and S. E. B. Petrie, J. Appl. Phys., 46, 4223 (1975).

    Article  CAS  Google Scholar 

  3. A. J. Kovacs, J. J. Aklonis, J. M. Hutchinson and A. R. Ramos, J. Polym. Sci., Polym. Phys. Ed., 17, 1097 (1979).

    CAS  Google Scholar 

  4. A. Agrawal, J. Polym. Sci., Polym. Phys., Ed., 27, 1449 (1989).

    CAS  Google Scholar 

  5. A. K. Doolittle, J. Appl. Phys., 39, 3369 (1963).

    Google Scholar 

  6. H. S. Chen and T. T. Wang, J. Appl. Phys., 52, 5898 (1981).

    CAS  Google Scholar 

  7. A. J. Kovacs, Adv. Polym. Sci., 3, 394 (1963).

    Google Scholar 

  8. Z. H. Ophir, J. A. Emerson and G. L. Wikes, J. Appl. Phys., 49, 5032 (1978).

    Article  CAS  Google Scholar 

  9. A. Buchman and D. Katz, Polym. Eng. Sci., 19, 923 (1979).

    Article  CAS  Google Scholar 

  10. R. J. Morgan, J. Appl. Polym. Sci., 23, 2711 (1979).

    Article  CAS  Google Scholar 

  11. J. Kaiser, Makromol. Chem., 180, 573 (1979).

    Article  CAS  Google Scholar 

  12. T. D. Chang and J. O. Brittan, Polym. Eng. Sci., 22, 1221 (1982).

    CAS  Google Scholar 

  13. E. S. Kong, Adv. Polym. Sci., 80, 125 (1986).

    CAS  Google Scholar 

  14. E. S. W. Kong, G. L. Wikes, J. E. McGrath, A. K. Banthia, Y. Mohajer and M. R. Tant, Polym. Eng. Sci., 21, 943 (1981).

    Article  CAS  Google Scholar 

  15. Y. G. Lin, H. Sautereau and J. P. Pascault, J. Appl. Polym. Sci., 32, 4595 (1986).

    Article  CAS  Google Scholar 

  16. I. C. Choy and D. J. Plazek, J. Polym. Sci., Polym. Phys. Ed., 24, 1303 (1986).

    CAS  Google Scholar 

  17. D. J. Plazek and I. C. Choy, J. Polym. Sci., Polym. Phys. Ed., 27, 307 (1989).

    CAS  Google Scholar 

  18. D. J. Plazek and Z. N. Frund, J. Polym. Sci., Polym. Phys. Ed., 28, 431 (1990).

    CAS  Google Scholar 

  19. A. Lee and G. B. McKenna, Polymer, 29, 1812 (1988).

    CAS  Google Scholar 

  20. A. Lee and G. B. McKenna, Polymer, 31, 423 (1990).

    CAS  Google Scholar 

  21. C. G’Sell and G. B. McKenna, Polymer, 33, 2103 (1992).

    CAS  Google Scholar 

  22. S. Montserrat, J. Appl. Polym. Sci., 44, 545 (1992).

    Article  CAS  Google Scholar 

  23. S. Montserrat, J. Polym. Sci., Polym. Phys. Ed., 32, 509 (1994).

    CAS  Google Scholar 

  24. J. M. Hutchinson, D. McCarthy, S. Montserrat and P. Cortes, J. Polym. Sci., Polym. Phys. Ed., 34, 229 (1996).

    CAS  Google Scholar 

  25. P. Cortes, S. Montserrat and J. M. Hutchinson, J. Appl. Polym. Sci., 63, 17 (1997).

    CAS  Google Scholar 

  26. A. Lee and G. B. McKenna, J. Polym. Sci., Polym. Phys. Ed., 35, 1167 (1997).

    CAS  Google Scholar 

  27. J. S. Shen, Z. Shao and S. Li, Polymer, 36, 3479 (1995).

    Article  CAS  Google Scholar 

  28. C. D. Breach, M. J. Folkes and J. M. Barton, Polymer, 33, 3080 (1992).

    Article  CAS  Google Scholar 

  29. J. M. G. Cowie and R. Ferguson, Macromolecules, 22, 2312 (1989).

    CAS  Google Scholar 

  30. J. L. Hedrick, PhD Thesis, Dept. of Chem., Virginia Polytech Institute, USA (1986).

  31. P. K. Monhanty, J. L. Hedrick, K. Gobetz, B. C. Johnson, I. Yilgor, R. Yang and J. E. McGrath, Polym. Prepr. (Am. Chem. Soc., Div. Polym. Chem.) 23, 284 (1982).

    Google Scholar 

  32. R. B. Prime, Thermal Analysis in Polymer Characterization, E. Turi, Ed., Heyden, Pa., 1981.

    Google Scholar 

  33. I. M. Hodge and A. R. Berens, Macromolecules, 15, 762 (1982).

    Article  CAS  Google Scholar 

  34. J. L. Ribelles, R. D. Calleja, R. Ferguson and J. M. G. Cowie, Polymer, 28, 2262 (1987).

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Chemical Engineering, Yuan-Ze University, Nei-Li, Taoyuan, 32026, Taiwan

    T. Leon Yu & Y. S. Chen

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  1. T. Leon Yu
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  2. Y. S. Chen
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Correspondence to T. Leon Yu.

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Leon Yu, T., Chen, Y.S. Physical aging of epoxy resin blended with poly(ether sulfone): Effect of poly(ether sulfone) molecular weight. J Polym Res 7, 257–266 (2000). https://doi.org/10.1007/s10965-006-0128-6

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  • DOI: https://doi.org/10.1007/s10965-006-0128-6

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