Pyrolysis Paths of Polybutadiene Depending on Pyrolysis Temperature

Sung-Seen Choi; Dong-Hun Han

Macromolecular Research, Vol.14, No.3, 354-358, June, 2006

Export Citation

Pyrolysis Paths of Polybutadiene Depending on Pyrolysis Temperature

Sung-Seen Choi^†, and Dong-Hun Han

Department of Applied Chemistry, Sejong University, 98 Koonja-dong, Kwangjin-gu, Seoul 143-747, Korea

E-mail:

Polybutadiene (BR) was pyrolyzed at 540-860 °C and the effect of pyrolysis temperature on variations in the relative abundance of the major pyrolysis products (C4-, C5-, C6-, C7-, and C8-species) was investigated. Formation of the C4-, C5-, C6-, and C7-species competed with that of the C8-species. Relative intensity of the C8-species decreased with increasing pyrolysis temperature, while that of the C5-, C6-, and C7-species increased. Pyrolysis paths were became more complicated with increasing pyrolysis temperature. We suggested the operation of double bond migration and succeeding rearrangements for the formation of the C5- and C7-species and various rearrangements, including a double bond, for the formation of the C6-species at high temperature. The activation energies for the pyrolysis product ratios of (C5+C6+C7)/C4 and C8/C4 were used to explain the competition reactions to form the pyrolysis products.

Keywords:polybutadiene;pyrolysis path;mechanism;pyrolysis temperature

[References]

Choi SS, J. Anal. Appl. Pyrolysis, 57, 249 (2001)
Radell EA, Strutz HC, Anal. Chem., 31, 1890 (1959)
Lehrle RS, Robb JC, Nature, 183, 1671 (1959)
Martin SB, J. Chromatogr., 2, 272 (1959)
Kang SH, Ku DC, Lim JH, Yang YK, Kwak NS, Hwang TS, Macromol. Res., 13(3), 212 (2005)
Hackathorn MJ, Brock MJ, Rubber Chem. Technol., 45, 1295 (1972)
Lattimer RP, Harris RE, Rhee CK, Schulten HR, Rubber Chem. Technol., 61, 639 (1988)
Schulten HR, Plage B, Lattimer RP, Rubber Chem. Technol., 62, 698 (1989)
Braun D, Canji E, Angew. Makromol. Chem., 29, 491 (1973)
Phair M, Wampler T, in Proceedings of the Rubber Division 150th Meeting, American Chemical Society, Paper No. 69 (1996)
Ghebremeskel GN, Hendrix C, in Proceedings of the Rubber Division 152nd Meeting, American Chemical Society, Paper No. 72 (1997)
Chien JCW, Kiang JKY, Eur. Polym. J., 15, 1059 (1979)
Ghebremeskel GN, Sekinger JK, Hoffpaiur JL, Hendrix C, Rubber Chem. Technol., 69, 874 (1996)
Lattimer RP, J. Anal. Appl. Pyrolysis, 39, 115 (1997)
Hacaloglu J, Ersen T, Ertugrul N, Fares MM, Suzer S, Eur. Polym. J., 33, 199 (1997)
Hacaloglu J, Ersen T, Rapid Commun. Mass Spectrom., 12, 1793 (1998)
Choi SS, Bull. Korean Chem. Soc., 20, 1348 (1999)
Chen F, Qian J, Fuel Process. Technol., 67, 53 (2000)
Kaminsky W, Mennerich C, J. Anal. Appl. Pyrolysis, 58, 803 (2001)
Ucar S, Karagoz S, Ozkan AR, Yanik J, Fuel, 84, 1884 (2005)
Brown RFC, Pyrolytic Methods in Organic Chemistry, Academic Press, New York (1980)

[Referenced By]

[1] Choi SS, J. Anal. Appl. Pyrolysis, 57, 249 (2001)

[2] Radell EA, Strutz HC, Anal. Chem., 31, 1890 (1959)

[3] Lehrle RS, Robb JC, Nature, 183, 1671 (1959)

[4] Martin SB, J. Chromatogr., 2, 272 (1959)

[5] Kang SH, Ku DC, Lim JH, Yang YK, Kwak NS, Hwang TS, Macromol. Res., 13(3), 212 (2005)

[6] Hackathorn MJ, Brock MJ, Rubber Chem. Technol., 45, 1295 (1972)

[7] Lattimer RP, Harris RE, Rhee CK, Schulten HR, Rubber Chem. Technol., 61, 639 (1988)

[8] Schulten HR, Plage B, Lattimer RP, Rubber Chem. Technol., 62, 698 (1989)

[9] Braun D, Canji E, Angew. Makromol. Chem., 29, 491 (1973)

[10] Phair M, Wampler T, in Proceedings of the Rubber Division 150th Meeting, American Chemical Society, Paper No. 69 (1996)

[11] Ghebremeskel GN, Hendrix C, in Proceedings of the Rubber Division 152nd Meeting, American Chemical Society, Paper No. 72 (1997)

[12] Chien JCW, Kiang JKY, Eur. Polym. J., 15, 1059 (1979)

[13] Ghebremeskel GN, Sekinger JK, Hoffpaiur JL, Hendrix C, Rubber Chem. Technol., 69, 874 (1996)

[14] Lattimer RP, J. Anal. Appl. Pyrolysis, 39, 115 (1997)

[15] Hacaloglu J, Ersen T, Ertugrul N, Fares MM, Suzer S, Eur. Polym. J., 33, 199 (1997)

[16] Hacaloglu J, Ersen T, Rapid Commun. Mass Spectrom., 12, 1793 (1998)

[17] Choi SS, Bull. Korean Chem. Soc., 20, 1348 (1999)

[18] Chen F, Qian J, Fuel Process. Technol., 67, 53 (2000)

[19] Kaminsky W, Mennerich C, J. Anal. Appl. Pyrolysis, 58, 803 (2001)

[20] Ucar S, Karagoz S, Ozkan AR, Yanik J, Fuel, 84, 1884 (2005)

[21] Brown RFC, Pyrolytic Methods in Organic Chemistry, Academic Press, New York (1980)