Article
  • Kinetics on the Synthesis of Poly(caprolactone diol) and Aliphatic Lsocyanate by FTIR Spectroscopy
  • Kang SH, Yang YK, Kwak NS, Kang YU, Hwang TS
  • FTIR을 이용한 폴리(카프로락톤 다이올)과 지방족 이소시아네이트의 반응속도 연구
  • 강석환, 양윤규, 곽노석, 강윤욱, 황택성
Abstract
Kinetic study of a reaction between poly(caprolactone diol) and aliphatic isocyanate was investigated by FTIR spectroscopy. The reaction rate was obtained from analyzing the absorbance change of NCO peak (2265 cm-1) in series IR spectra. In the results, the overall reaction between PCL and isocyanate conformed to the simple second-order law, and the rate constant increases with increasing reaction temperature. The activation energies obtained from the evaluation of kinetic data were 25.4∼30.9 kJ/mol for hexamethylene diisocyanate and 16.8∼22.1 kJ/mol for cyclohexylmethane diisocyanate, respectively.

FTIR을 이용하여 폴리(카프로락톤 다이올)과 지방족 이소시아네이트간의 반응속도에 관한 연구를 수행하였다. NCO 피크(2265 cm-1)의 흡광도 변화를 통하여 반응속도를 해석하였다. 그 결과, 폴리(카프로락톤 다이올)과 이소시아네이트간의 반응은 전체적으로 단순 2차 반응속도법과 일치함이 확인되었고, 반응온도의 증가에 따라 속도 상수는 증가하였다. 반응속도 상수로부터 구한 활성화에너지는 hexamethylene diisocyanate의 경우 25.4~30.9 kJ/mol, cyclohexylmethane diisocyanate의 경우 16.8~22.1 kJ/mol로 각각 나타났다.

Keywords: poly(caprolactone diol); aliphatic isocyanate; rate constant; activation energy

References
  • 1. David DJ, Staley HBAnalytical Chemistry of Polyurethane, Wiley-Interscience, New York, Vol 1, p85 (1969)
  •  
  • 2. Choi SH, Polym. Sci. Technol., 10(5), 621 (1999)
  •  
  • 3. Lee TY, Lee HS, Seo SW, Polym. Sci. Technol., 10(5), 597 (1999)
  •  
  • 4. Kim DS, J. Korean Fiber Society, 25, 56 (1988)
  •  
  • 5. Jeong HM, Kim BK, Choi YJ, Polymer, 41(5), 1849 (2000)
  •  
  • 6. Takahashi T, Hayashi N, Hayashi S, J. Appl. Polym. Sci., 60(7), 1061 (1996)
  •  
  • 7. Jung HC, Kang SJ, Kim WN, Kim SB, Lee YB, Hong SH, J. Korean Institute of Gas., 2, 29 (1998)
  •  
  • 8. Kim SM, Hwang TS, Polym.(Korea)in press (2004)
  •  
  • 9. Elwell MJ, Ryan AJ, Grunbauer HJ, Vanlieshout HC, Polymer, 37(8), 1353 (1996)
  •  
  • 10. Cordeiro N, Belgacem MN, Gandini A, Neto CP, Ind. Crop. Prod., 6, 163 (1997)
  •  
  • 11. Ajithkumar S, Kansara SS, Patel NK, Eur. Polym. J., 34, 1273 (1998)
  •  
  • 12. Tassel X, Barbryb D, Tighzerta L, Eur. Polym. J., 36, 1745 (2000)
  •  
  • 13. Pavier C, Gandini A, Eur. Polym. J., 36, 1653 (2000)
  •  
  • 14. Kim JK, Cho HK, Noh ST, Kang SC, J. Korean Ind. Eng. Chem., 13(8), 815 (2002)
  •  
  • 15. Parnell S, Min K, Cakmak M, Polymer, 44(18), 5137 (2003)
  •  
  • 16. Lan PN, Corneillie S, Schacht E, Davies M, Shard A, Biomaterials, 17, 2273 (1996)
  •  
  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2005; 29(1): 59-63

    Published online Jan 25, 2005

  • Received on Sep 24, 2004
  • Accepted on Nov 30, 2004