공업화학 (Applied Chemistry for Engineering)

  • 제22권5호
  • /
  • Pages.473-478
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  • 2011
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  • 1225-0112(pISSN)
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  • 2288-4505(eISSN)
한국공업화학회 (The Korean Society of Industrial and Engineering Chemistry)
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DOI QR코드

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Tetradecyltrimethylammonium Bromide 용액에서 Para-할로겐화 벤조산 이성질체들의 가용화에 대한 연구

Solubilization of Para-Halogenated Benzoic Acid Isomers by the Solution of Tetradecyltrimethylammonium Bromide

  • 이남민 (한국기술교육대학교 응용화학공학과) ;
  • 이병환 (한국기술교육대학교 응용화학공학과)
  • Lee, Nam-Min (Department of Applied Chemical Engineering, Korea University of Technology & Education) ;
  • Lee, Byung-Hwan (Department of Applied Chemical Engineering, Korea University of Technology & Education)
  • 투고 : 2011.05.24
  • 심사 : 2011.08.02
  • 발행 : 2011.10.10
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초록

양이온성 계면활성제인 TTAB (tetradecyltrimethylammonium bromide) 용액에서 para-할로겐화 벤조산 이성질체들의 가용화 현상을 UV/Vis 분광광도법을 이용하여 연구하였다. 온도변화에 따른 가용화상수값($K_s$)과 임계미셀농도값(CMC)의 변화를 측정함으로써 열역학적으로 분석하였다. 그 결과 모든 이성질체들의 가용화에 대한 ${\Delta}G^{\circ}{_s}$ 값은 측정범위내에서 모두 음의 값을 나타내었고, ${\Delta}H^{\circ}{_s}$와 ${\Delta}S^{\circ}{_s}$ 값은 모두 양의 값을 나타내었다. 또한 벤조산 이성질체들의 가용화현상에 미치는 n-부탄올과 NaCl의 효과에 대하여 조사하였다. 이러한 첨가제는 CMC와 $K_s$ 값을 동시에 큰 폭으로 감소시켰으며, 그 결과로부터 각 벤조산 이성질체들은 미셀의 표면 혹은 palisade 층에 가용화됨을 알 수 있었다.

The interaction of para-halogenated benzoic acid isomers with the micellar system of tetradecyltrimethylammonium bromide was studied by the UV/Vis spectrophotometric method. The solubilization constants ($K_s$) of benzoic acid isomers into the micellar system of TTAB and the critical micelle concentration (CMC) of TTAB have been measured with the change of temperature. Various thermodynamic parameters have been calculated and analyzed from those measurement. The results show that the values of ${\Delta}G^{\circ}{_s}$ for the solubilization of all isomers are negative and the values of ${\Delta}H^{\circ}{_s}$ and ${\Delta}S^{\circ}{_s}$ are all positive within the measured temperature range. The effects of additives (n-butanol and NaCl) on the solubilization of benzoic acid isomers have been also measured. There was a great decrease on the values of $K_s$ and CMC simultaneously with these additives. From these changes we can postulate that the solubilization sites of each isomers in the TTAB micellar system are the surface or the palisade region of the micelle.

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참고문헌

  1. B. H. Lee, S. D. Christian, E. E. Tucker, and J. F. Scamehorn, Langmuir, 7, 1332 (1991). https://doi.org/10.1021/la00055a007
  2. S. K. Mehta, S. Chaudhary, R. Kumar, and K. K. Bhasin, J. Phys. Chem. B, 113, 7188 (2009). https://doi.org/10.1021/jp811310f
  3. T. Chakraborty, I. Chakraborty, S. P. Moulik, and S. Ghosh, Langmuir, 25, 3062 (2009). https://doi.org/10.1021/la803797x
  4. R. Chaghi, L. C. de Menorval, C. Charnay, G. Derrin, and J. Zajac, Langmuir, 25, 4868 (2009). https://doi.org/10.1021/la803451q
  5. Y. Moroi, K. Mitsunobu, T. Morisue, Y. Kadobayashi, and M. Sakai, J. Phys. Chem., 9, 2372 (1995).
  6. S. Lu and P. Somasundaran, Langmuir, 23, 9960 (2007). https://doi.org/10.1021/la701009u
  7. M. Takeuchi and Y. Moroi, Langmuir, 11, 4719 (1995). https://doi.org/10.1021/la00012a023
  8. K. J. Rao and S. Paria, J. Phys. Chem. B, 113, 474 (2009).
  9. S. K. Mehta, S. Chaudhary, R. Kumar, and K. K. Bhasin, J. Phys. Chem. B, 113, 7188 (2009). https://doi.org/10.1021/jp811310f
  10. A. Mahata, D. Sarkar, D. Bose, D. Ghosh, A. Girigoswami, P. Das, and N. Chattopadhyay, J. Phys. Chem. B, 113, 7517 (2009). https://doi.org/10.1021/jp900575e
  11. S. Nakamura, L. Kobayashi, R. Tanaka, T. I. Yamashita, K. Motomura, and Y. Moroi, Langmuir, 24, 15 (2008). https://doi.org/10.1021/la702820h
  12. M. Ali. M. Jha, S. K. Das, and S. K. Saha, J. Phys. Chem. B, 113, 15563 (2009). https://doi.org/10.1021/jp907677x
  13. T. S. Banipal, A. K. Sood, and K. Singh, J. Surfact. Deterg., 14, 235 (2011). https://doi.org/10.1007/s11743-010-1217-4
  14. B. H. Lee and N. M. Lee, J. Kor. Chem. Soc., 54, 374 (2010). https://doi.org/10.5012/jkcs.2010.54.4.374
  15. B. H. Lee, Appl. Chem. Eng., 21, 337 (2010).
  16. K. Behera, H. Om, and S. Pandey, J. Phys. Chem. B, 113, 786 (2009). https://doi.org/10.1021/jp8089787
  17. M. Sammalkorpi, M. Karttunen, and M. Haatoja, J. Phys. Chem. B, 113, 5863 (2009). https://doi.org/10.1021/jp901228v
  18. L. D. Leclercq, S. Giroux, B. Henry, and P. Rubini, Langmuir, 23, 10463 (2007). https://doi.org/10.1021/la7017488
  19. S. Rozner, A. Kogan, S. Mehta, P. Somasundaran, A. Aserin, N. Garti, and M. F. Ottaviani, J. Phys. Chem. B, 113, 700 (2009). https://doi.org/10.1021/jp807163t
  20. J. Penfold, T. A. Green, G. C. Jones, G. Ford, C. Roberts, J. Hubbard, J. Petkov, R. K. Thomas, and I. Grillo, Langmuir, 24, 12209 (2008). https://doi.org/10.1021/la801662g
  21. A. Jusufi, A. P. Hynninen, M. Haataja, and A. Z. Panagiotopoulos, J. Phys. Chem. B, 113, 6314 (2009).
  22. M. N. Khan and H. R. Azri, J. Phys. Chem. B, 114, 8089 (2010). https://doi.org/10.1021/jp102109q