폴리페닐렌설파이드케톤 열분해반응의 속도론적 관찰

김무송; 전일련; 서관호; Kim M. S.; I. R. Jeon; K. H. Seo

Polymer(Korea), Vol.23, No.3, 361-367, May, 1999

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폴리페닐렌설파이드케톤 열분해반응의 속도론적 관찰

Thermal Degradation Kinetics of Poly(phenylene sulfide ketone)

김무송, 전일련¹, 서관호^†

경북대학교 고분자공학과
¹경일대학교 공업화학과

Kim M. S., I. R. Jeon¹, and K. H. Seo^†

Department of Polymer Science, Kyungpook National University, Taegu 702-701, Korea
¹Department of Industrial Chemistry, Kyungil University, Kyungsan 712-701, Korea

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초록

본 연구에서는 thermo-gravimetric analyzer (TGA)를 이용하여 폴리페닐렌설파이드케톤(PPSK)의 열분해 반응을 조사하였다. 적요된 온도범위는 200-700 ℃이며 승온속도는 각각 0.5, 1, 5, 10, 50, 100 ℃/min으로 측정하였다. 최대 분해온도는 448 ℃에서 631 ℃의 범위를 보였으며 열분해 활성화 에너지를 구하기 위해 Kissinger method, Ozawa method, Friedman method를 각각 적용하였다. 분해 활성화 에너지는 203, 234, 232 kJ/mol로 측정되었고 Ozawa method가 가장 유리한 것으로 나타났으며, 구해진 열분해 파라미터를 이용하여, PP나의 내열성을 평가한 결과 비교적 우수하다고 판단되었다.

In this study, thermal degradation kinetics of poly(phenylene sulfide ketone)[PPSK] was investigated with thermo-gravimetric analyzer(TGA). Their thermal degradation behaviors of PPSK were investigated by dynamic thermo-gravimetry, over the temperature range 200-700 ℃ and at various heating rates of 0.5, 1, 5, 10, 50, and 100 ℃/min, respectively. Maximum degradation temperatures were in the range of 448 ℃ and 631 ℃. To determine activation energy of thermal decomposition, Kissinger method, Ozawa method, and Friedman method were used and respective activation energies were 203, 234, and 232 kJ/mol. It is advantageous to use Ozawa method in determining thermal decomposition parameter of PPSK. These parameters indicate that this material has good thermal stability.

Keywords:thermal stability;poly(phenylene sulfide ketone)

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[1] Flynn JH, Polym. Eng. Sci., 20(10), 675 (1980)

[2] Schneider HA, "Degradation and Stabilization of Polymers," ed. by H.H.G. Jeillinek, p. 506, Elsevier, Amsterdam (1983)

[3] Flynn J, "Aspects of Degradation and Stabilization of Polymers," ed. by H.H.G. Jellinek, p. 573, Elseiver, Amsterdam (1978)

[4] MacCallum JR, Tanner J, Eur. Polym. J., 6, 907 (1970)

[5] Kissinger HE, Anal. Chem., 21, 1702 (1957)

[6] Varhegyi G, Thermochim. Acta, 110, 95 (1987)

[7] Ozawa T, Bull. Chem. Soc. Jpn., 38, 1881 (1965)

[8] Flynn JH, Wall LA, Polym. Lett., 4, 323 (1966)

[9] Doyle CD, J. Appl. Polym. Sci., 5, 285 (1961)

[10] Friedman HL, J. Polym. Sci., 6C, 183 (1964)

[11] Freeman ES, Carroll B, J. Phys. Chem., 62, 394 (1958)

[12] Flynn JH, Wall LA, J. Res. Nat. Breau Stds., 70A(6), 487 (1966)

[13] Anderson DA, Freeman ES, J. Polym. Sci., 54, 253 (1961)

[14] Chatterjee PK, J. Polym. Sci., 3A, 4253 (1965)

[15] Anderson HC, Makromol. Chem., 51, 233 (1962)

[16] Igarashi S, Kambe H, Bull. Chem. Soc. Jpn., 37, 176 (1964)

[17] Day M, Cooney JD, Wiles DM, J. Appl. Polym. Sci., 38, 323 (1989)

[18] Kim MS, Lim HS, Seo KH, Polym.(Korea), 22(4), 553 (1998)

[19] Wall LA, Florin RE, J. Res. Nat. Bureau Stds., 60, 451 (1958)

[20] Flynn JH, Thermochim. Acta, 37, 225 (1980)