Journal of thermal analysis

, Volume 47, Issue 4, pp 1141–1153 | Cite as

A DMA study of the suppression of the Β transition in slightly plasticized PVC blends

  • T. Vilics
  • H. A. Schneider
  • Virginia Manoviciu
  • I. Manoviciu


A new criterion for evaluating different plasticizers the ability of suppression of the Β transition in plasticized PVC blends. Accordingly, the Β suppression ability is proportional to the PVC-plasticizer compatibility, expressed either by the critical solution temperature, CST, or by the interaction parameter related to the difference between the solubility parameters of the blend components. The criterion is, however, valid for low plasticizer contents (<5%w/w) only, as long as the Β transitions are not overlapped by the α transitions, shifted towards lower temperatures due to the effect of the plasticizer. For higher plasticizer contents the α transition starts to overlap the Β transition and the Β suppression ability of the plasticizer depends increasingly on the efficiency of the plasticizer i.e. on the depression of the glass transition temperature of PVC (related to theTg of the plasticizer). Accordingly, plasticizers with both good efficiency (lowTg) and compatibility are more effective in the Β suppression than plasticizers which have only a higher compatibility but also a highTg (i.e. reduced efficiency).


plasticizers PVC blends Tg 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    E. J. Wickson, “Handbook of PVC Formulating”;, Wiley, New York 1993.Google Scholar
  2. 2.
    L. Bohn, Kunststoffe, 53 (1963) 826.Google Scholar
  3. 3.
    R. A. Horsley, Plastic Progress, 1957, Iliffe, London 1958.Google Scholar
  4. 4.
    M. May, T. Ganceva and A. Marinova, Plaste Kautsch., 32 (1985) 449.Google Scholar
  5. 5.
    S. J. Guerrero, Macromolecules, 22 (1989) 3480.CrossRefGoogle Scholar
  6. 6.
    E. W. Fischer, G. P. Hellmann, H. W. Spiess, F. J. Hörth, U. Ecarius and M. Wehrle, Makromol.Chem. Suppl., 12 (1985) 189.CrossRefGoogle Scholar
  7. 7.
    Y. Maeda and D. R. Paul, J. Polym. Sci., Polym. Phys. Ed., 25 (1987) 957.Google Scholar
  8. 8.
    G. Pezzin, G. Ajroldi G. and C. Carbuglio, J.Appl. Polym. Sci., 2 (1967) 2553.CrossRefGoogle Scholar
  9. 9.
    A. A. Tager, I. I. Pescianskaia, T. V. Ikanina and A. J. Suvorova, Vysokomol. Soed., 27 (1985) 95.Google Scholar
  10. 10.
    P. Tiemblo, G. Martinez, J. M. Gomez-Elvira and J. Milan, Polym. Bull., 32 (1994) 353.CrossRefGoogle Scholar
  11. 11.
    M. Gilbert, J. M. S. Gilbert, Rev. Macromol. Chem.Phys., C 34 (1994) 77.Google Scholar
  12. 12.
    H. Bertilsson and J. F. Jansson, J. Macromol. Sci.-Phys., B 14 (1977) 251.Google Scholar
  13. 13.
    N. Kinjo and T. Nakagawa, Polym. J., 4 (1973) 143.Google Scholar
  14. 14.
    M. M. Coleman, J. F. Graf and P. C. Painter, “Specific Interactions and the Miscibility of Polymer Blends”;, Technomic Publ.Comp. Inc., 1992.Google Scholar
  15. 15.
    D. R. Paul, “Polymer Blends and Mixtures”;, by D. J. Walsh, J. S. Higgins and A. Maconnachie, (Eds.) NATO ASI Series E, Dordrecht, Boston, Lancaster, 1985, Chap. I., p. 6.Google Scholar
  16. 16.
    L. Meier, “Kunststoff-Handbuch”;, Band 2/1: Polyvinylchlorid, Carl Naser Verlag, München, Wien 1986, p. 610.Google Scholar
  17. 17.
    A. C. Poppe, J. Vinyl. Technol., 9 (1987) 191.CrossRefGoogle Scholar
  18. 18.
    L. G. Krauskopf, J. Vinyl. Technol., 15 (1993) 140.CrossRefGoogle Scholar
  19. 19.
    W. J. Frissel, Modern Plastics, 1961, p. 5.Google Scholar
  20. 20.
    H.-H. Huang, E. M. Yorkgits and G. L. Wilkes, J. Macromol. Sci-Phys., B 32 (1993) 163.Google Scholar
  21. 21.
    S.-Y. Kwak, J. Appl. Polym. Sci., 55 (1995) 1683.CrossRefGoogle Scholar
  22. 22.
    I. M. Margulis, Yu. B. Ovcinikov and L. Y. Cenborisova, Vysokomol. Soed., B 22 (1980) 10.Google Scholar
  23. 23.
    S. L. Anderson, P. B. Smith, S. A. Grulke and P. T. De Lassus, ACS Polym. Prepr., 33 (1993) 323.Google Scholar
  24. 24.
    M. Theodorou and B. Jasse, J. Polym. Sci., B 24 (1986) 2643.Google Scholar
  25. 25.
    J. K. Sears and J. R. Darby, “The Technology of Plasticizers”;, John Wiley & Sons, New York 1982.Google Scholar

Copyright information

© Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest 1996

Authors and Affiliations

  • T. Vilics
    • 2
  • H. A. Schneider
    • 2
  • Virginia Manoviciu
    • 1
  • I. Manoviciu
    • 1
  1. 1.Faculty of Chemical EngineeringThe Technical UniversityTimisoaraRomania
  2. 2.Institut für Makromolekulare Chemie “Hermann-Staudinger-Haus”; & Freiburger MaterialforschungszentrumFMF der UniversitÄt FreiburgGermany

Personalised recommendations