Synthesis and pH-Dependent Micellization of a Novel Block Copolymer Containing s- Triazine Linkage

  • Pal Ravindra R. (Department of Polymer Science and Engineering, Sungkyunkwan University) ;
  • Lee Doo Sung (Department of Polymer Science and Engineering, Sungkyunkwan University)
  • 발행 : 2005.10.01

초록

Novel pH-sensitive moieties containing an s-triazine ring were synthesized with sulfonamide and secondary amino groups. The synthesized pH-sensitive moieties were used for the synthesis of a pH-sensitive amphiphilic ABA triblock copolymer. The pH-sensitive triblock copolymer was composed of diblock copolymers, methoxy poly(ethylene glycol)-poly ($\varepsilon$-caprolactone-co-D,L-lactide) (MPEG-PCLA), and pH-sensitive moiety. These copolymers could be dissolved molecularly in both acidic and basic aqueous media at room temperature due to secondary amino and sulfonamide groups. The synthesized s-triazine rings containing pH-sensitive compounds were characterized by ${^1}H-NMR,\;{^13}C-NMR$, and LC/MSD spectral data. The synthesized diblock and triblock copolymers were also characterized by ${^1}H-NMR$ and GPC analyses. The critical micelle concentrations at various pH conditions were determined by fluorescence technique using pyrene as a probe. Furthermore, the micellization and demicellization study of the triblock copolymer was done with pH-sensitive groups. The sensitivity towards pH change was further established by acid-base titration.

키워드

참고문헌

  1. K. E. Ulrich, S. M. Cannizaro, R. S. Langer, and K. M. Shakeshef, Chem. Rev., 99, 3181 (1999) https://doi.org/10.1021/cr940351u
  2. R. K. Jain, J. Control. Release, 53, 49 (1998) https://doi.org/10.1016/S0168-3659(97)00237-X
  3. J. L. S. Au, S. H. Jang, J. Zheng, C. T. Chen, S. Song, L. Hu, and M. G. Weintjes, J. Control. Release, 74, 31 (2001) https://doi.org/10.1016/S0168-3659(01)00305-4
  4. X. M. Liu and L. S. Wang, Biomaterials, 25, 1929 (2004) https://doi.org/10.1016/j.biomaterials.2003.08.023
  5. A. Potineni, D. M. Lynn, R. Langer, and M. M. Amiji, J. Control. Release, 86, 223 (2003) https://doi.org/10.1016/S0168-3659(02)00374-7
  6. S. K. Han, K. Na, and Y. H. Bae, Colloids and Surfaces A:Physiochem. Eng. Aspects, 49, 214 (2003)
  7. M. Ono, N. Kawahara, D. Goto, Y. Wakahayashi, S. Ushiro, S. Yoshida, H. Izumi, M. Kuwano, and Y. Sato, Cancer Res., 56, 1512 (1996)
  8. W. Draber, K. Tietjin, J. F. Kluth, and A. Trebst, Angew. Chem. Int. Ed. Engl., 30, 1621 (1991) https://doi.org/10.1002/anie.199109911
  9. P. J. Hajduk, J. Dinges, J. M. Schkeryantz, D. Janowick, M. Kaminski, M. Tufano, D. J. Auri, A. Petros, V. Nienaber, P. Zhong, R. Hammond, M. Coen, B. Beutel, L. Katz, and S. W. Fesik, J. Med. Chem., 42, 3842 (1999) https://doi.org/10.1021/jm981074c
  10. M. Maeda, M. Iigo, H. Tsuda, H. Fujita, Y. Yonemura, K. Nakagawa, Y. Endo, and T. Sasaki, Anti-Cancer Drug Res., 15, 217 (2000)
  11. R. R. Pal, P. S. Patil, M. M. Salunkhe, N. N. Maldar, and P. P. Wadgaonkar, Polym. Int., 54, 569 (2005) https://doi.org/10.1002/pi.1717
  12. A. D. Sagar, R. D. Shingte, P. P. Wadgaonkar, and M. M. Salunkhe, Eur. Polym. J., 37, 1493 (2001) https://doi.org/10.1016/S0014-3057(00)00100-2
  13. N. Irles, J. Pauiggali, and J. A. Subirana, Macromol. Chem. Phys., 202, 3316 (2001) https://doi.org/10.1002/1521-3935(20010101)202:1<1::AID-MACP1>3.0.CO;2-L
  14. B. Klenke, M. Stewart, M. P. Barrett, R. Brun, and I. H. Gilbert, J. Med. Chem., 44, 3440 (2001) https://doi.org/10.1021/jm000084m
  15. R. L. M. Allen, Color Chemistry, Appleton-century-crofts, New York 1971
  16. M. J. Adam and L. D. Hall, Carbohydr. Res., 144, 23 (1985) https://doi.org/10.1016/0008-6215(85)85003-5
  17. K. Ono, Y. Kai, H. Maeda, F. Samizo, K. Sakurai, H. Nishimura, and Y. Inada, J. Biomater. Sci. Polym. Edn, 2, 61 (1991) https://doi.org/10.1163/156856291X00061
  18. S. M. Khersonsky, D. W. Jung, T. W. Kang, D. P. Walsh, H. S. Moon, H. Jo, V. Shetty, T. A. Neubert, and Y. T. Chang, J. Am. Chem. Soc., 125, 11804 (2003) https://doi.org/10.1021/ja035334d
  19. E. M. Samolin and L. Rapport, Chem. Heterocycl. Compd., 13 (1959) https://doi.org/10.1007/BF00472446
  20. D. Scharn, U. Reineke, J. Schneider-Mergener, and J. Germeroth, Comm. Chem., 2, 361 (2000).
  21. C. R. Johnson, B. Zhang, P. Fantauzzi, M. Hocker, and K. M. Yager, Tetrahedron, 54, 4097 (1998) https://doi.org/10.1016/S0040-4020(98)00138-0
  22. P. de Hoog, P. Gamez, W. L. Driessen, and J. Reedijk, Tetrahedron Lett., 43, 6783 (2002) https://doi.org/10.1016/S0040-4039(02)01498-3
  23. T. J. Jones, N. Brasseur, J. E. Lier Van, and J. C. Leroux, J. Pharm. Sci., 89, 52 (2000) https://doi.org/10.1002/(SICI)1520-6017(200001)89:1<52::AID-JPS6>3.0.CO;2-D
  24. J. S. Moore and S. I. Stupp, Macromolecules, 23, 65 (1990) https://doi.org/10.1021/ma00203a013
  25. W. Kloetzer, Monatsh. Chem., 93, 1055 (1962) https://doi.org/10.1007/BF00904468