Epoxidized Polybutadiene as a Thermal Stabilizer for Poly(3-hydroxybutyrate). 1. Effect of Epoxidation on the Thermal Properties of Polybutadiene

  • Park, Ju-Yol (Department of Ploymer Science and Engineering Kumoh National University of Technology) ;
  • Lee, Jong-Keun (Department of Ploymer Science and Engineering Kumoh National University of Technology) ;
  • Park, Won-Ho (Department of Textile Engineering, School of Engineering, Chungnam National University)
  • Published : 2002.09.01

Abstract

Polybutadiene(PB) was epoxidized to various extents with m-chloroperbenzoic acid (MCPBA) in homogeneous solution. The thermal properties of the epoxidized PBs were investigated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). As a result of epoxidation the glass transition temperature (Tg) of PB increased by approximately $0.8^{\circ}$ for each 1 mol% of epoxidation. The thermal decomposition of the epoxidised PBs occurred in two-step process, while that of PB exhibited apparent one-step degradation process.

Keywords

References

  1. I. R. Gelling, Rubber Chem. Technol., 58, 86 (1985) https://doi.org/10.5254/1.3536060
  2. K. Maenz, H. Schutz, and D. Sardermann, Eur. Polym. J., 29, 855 (1993) https://doi.org/10.1016/0014-3057(93)90339-H
  3. S. Roy, S. S. Namboodri, B. R. Maiti, and B. R. Gupta, Polym. Eng. Sci., 33, 92 (1993) https://doi.org/10.1002/pen.760330206
  4. S. F. Thames and P. W. Poole, J. Appl. Polym. Sci., 47, 1255(1993) https://doi.org/10.1002/app.1993.070470713
  5. N. Vasanthan, Polym. J., 26, 1291 (1994) https://doi.org/10.1295/polymj.26.1291
  6. Y. Kurusu, Y. Masuyama, and M. Miyamoto, Polym. J., 26,1163(1994) https://doi.org/10.1295/polymj.26.1163
  7. J. E. Puskas and C. Wilds, Rubber Chem. Tech., 67, 329(1994) https://doi.org/10.5254/1.3538678
  8. D. D. Sotiropoulou, K. G. Gravalos, and N. K. Kalfoglou, J. Appl. Polym. Sci., 45, 273 (1992) https://doi.org/10.1002/app.1992.070450208
  9. J. Rabek Jr, L. Marshall, J. McManis, and R. Wolak, J. Org. Chem., 51, 1649 (1986) https://doi.org/10.1021/jo00360a003
  10. A. M. Al-Ajlouni and J. H. Espenson, J. Am. Chem. Soc., 117, 9243 (1995) https://doi.org/10.1021/ja00141a016
  11. N. N. Schwartz and J. H. Blumbers, J. Org. Chem., 29, 1976(1964) https://doi.org/10.1021/jo01030a078
  12. W. H. Park, R. W. Lenz, and S. Goodwin, Macromolecules, 31, 1480 (1998) https://doi.org/10.1021/ma9714528
  13. W. H. Park, R. W. Lenz, and S. Goodwin, Polym. Degrad. Stab., 63, 287 (1999) https://doi.org/10.1016/S0141-3910(98)00107-4
  14. A. G. Magaritis and N. K. Kalfoglou, Eur. Polym. J., 24, 1043 (1988) https://doi.org/10.1016/0014-3057(88)90063-8
  15. C. M. Roland, Macromolecules, 25, 7031 (1992) https://doi.org/10.1021/ma00051a047
  16. C. M. Roland, J. K. Kallitisis, and K. G. Gravalos, Macromolecules, 26, 6474 (1993) https://doi.org/10.1021/ma00076a025
  17. S. Mohanty, P. G. Mukunda, and G. B. Nando, Polym. Degrad. Stab., 50, 21 (1995) https://doi.org/10.1016/0141-3910(95)00096-5