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Thermal Decomposition of Copolymers of Butyl methacrylate and Styrene Produced in a CSTR

  • Kim, Duck-Sool (Dept. of Computer Engineering, Tongmyong of Information Technology University) ;
  • Kim, Nam-Seok (Dept. of Chemical Engineering, Changwon National University) ;
  • Park, Keun-Ho (Dept. of Chemical Engineering, Changwon National University)
  • Published : 2002.12.31

Abstract

Thermal decomposition of the copolymer of butyl methacylate(BMA) with styrene(St) was investigated. The copolymer Was obtained at 80 $^{\circ}C$ in a continuous stirred tank reactor(CSTR) using toluene and benzoyl peroxide(BPO), as solvent and initiator, respectively. The reactor volume was 0.3 liters and residence time was 3 hours. The thermal decomposition followed the second order kinetics for BMA/St copolymer. The activation energies of thermal decompositon were in the ranges of 38 ${\sim}43$ kcal/mol for BMA with St copolymer and a good additivity rule was observed with the composition of copolymer. The thermogravimetric trace curve agreed well with the theoretical calculation.

Keywords

References

  1. R. H. Ogorkiewicz, /ICL Ltd., 'Engineering Properties of Thermoplastics', p. 215 Wiley Interscience, New York, (1970)
  2. W, H, Ray and R. L. Laurence, 'Polyme-rization Reactor Engineering in Chemical Reactor Theory, Amundson', N. R. and Lapidus, Eds., Prentice-Hall, Englewood Cliffs, New jersey (1977)
  3. J, W. Hamer, T. A. Akramov, and W. H. Ray, Chem Eng. Sci., 36, 1897 (1981) https://doi.org/10.1016/0009-2509(81)80029-2
  4. S. Das and F. Rodriguez, J. AppI. PoIy. Sci., 32, 5981 (1986) https://doi.org/10.1002/app.1986.070320726
  5. S. Das and F. Rouriguez, J. AppI. PoIy. Sci., 39, 1309 (1990) https://doi.org/10.1002/app.1990.070390609
  6. P. Wittmer, Macromol. Chem Suppl., 3, 129 (1979) https://doi.org/10.1002/macp.1979.020031979107
  7. B. S. Shin and S. D. Seul, J. Polymer (Korea). Sci., 17, 4 (1993)
  8. H. E. Kissinger, Anal. Chem, 21, 1702 (1957)
  9. E. S. Freeman and B. Carroll, J. Polym Sci., 62, 394 (1963)
  10. H. L. Friedrnan, J. Polym Sci., Part C, 6, 183 (1963)
  11. D. A. Anderson and E. S. Freeman, J. Polym Sci., 54, 253 (1961) https://doi.org/10.1002/pol.1961.1205415920
  12. T. Ozawa, Bull. Chem Soc, Jpn, 38, 1881 (1965) https://doi.org/10.1246/bcsj.38.1881
  13. C. D. Doyle, J. Appl. Polym. Sci., 5, 285 (1961) https://doi.org/10.1002/app.1961.070051506
  14. C. Duval, AnaI. Chem Acta, 31, 301 (1964) https://doi.org/10.1016/S0003-2670(00)88830-3
  15. A. E. Newkirk, AnaI, Chem, 32, 1558 (1860)
  16. G. M. Lukaszewski and J. P. Redfern Lab. Pract. 10, 469 (1961)
  17. E. Calahorra, M. Cortazar, and G. M. Guzuman, J. Polym Sci., 23, 257 (1985)