화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.29, No.1, 59-63, January, 2005
Export Citation
FTIR을 이용한 폴리(카프로락톤 다이올)과 지방족 이소시아네이트의 반응속도 연구
Kinetics on the Synthesis of Poly(caprolactone diol) and Aliphatic Lsocyanate by FTIR Spectroscopy
강석환, 양윤규, 곽노석, 강윤욱1, 황택성†
  • 충남대학교 화학공학과
  • 1(주)애경산업 중앙연구소
Suk-Hwan Kang, Yun-Kyu Yang, Noh-Seok Kwak, Yun-Uk Kang1, and Taek-Sung Hwang†
  • School of Chemical Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, Korea
  • 1Central Research Lab., Aekyung Industrial Co., 217-2 Sinseong-dong, Yuseong-gu, Daejeon 305-805, Korea
E-mail:
초록
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.
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.
Keywords:poly(caprolactone diol);aliphatic isocyanate;rate constant;activation energy
  1. David DJ, Staley HB, Analytical 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)