화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korea Polymer Journal, Vol.9, No.2, 100-106, April, 2001
Export Citation
Synthesis and Characterization of Star-shaped Aliphatic Polyester
Young Cheol Shin, Kil-Yeong Choi, Moon Young Jin†, Sung-Kwon Hong1, Donghyun Cho2, Taihyun Chang2, and Moonhor Ree2
  • Advanced Materials Division, Korea Research Institute of Chemical Technology, Taejon 305-600, Korea
  • 1Department of Polymer Science and Engineering, Chungnam National University, Taejon 305-764, Korea
  • 2Department of Chemistry and Center for Integrated Molecular Systems, Pohang University of Science and Technology, Pohang 790-784, Korea
E-mail:
Several star-polymers with aliphatic cores were synthesized by ring opening polymerization (ROP) of ε-caprolactone using stannous 2-ethyl-hexanoate as a catalyst. The star-polymers were thoroughly analyzed by MALDI-TOF mass spectrometry, temperature gradient interaction chromatography and C(13)-NMR to obtain detailed information of the molecular structure. The imperfection of the star-polymers seemed to be originated from restricted participation of sterically hindered hydroxyl groups of initiator. The synthesized star-polymers had narrow molecular weight distributions. Various reaction conditions to control the imperfection were studied.
  1. Peters L, Semicond. International Sept., 64 (1998)
  2. MRS Bulletin, 22, 19 (1997)
  3. Hedrick JL, Miller RD, Hawker CJ, Cater KR, Volksen W, Yoon DY, Trollasas M, Adv. Mater., 10, 1049 (1998) 
  4. Hedrick JL, Hawker CJ, Miller RD, Twieg R, Srinivasan SA, Trollsas M, Macromolecules, 30(24), 7607 (1997) 
  5. Nguyen C, Hawker CJ, Miller RD, Huang E, Hedrick JL, Gauderon R, Hilborn JG, Macromolecules, 33(11), 4281 (2000) 
  6. Malmstrom E, Johansson M, Hult A, Macromolecules, 28(5), 1698 (1995) 
  7. Ihre H, Hult A, Soderlind E, J. Am. Chem. Soc., 118(27), 6388 (1996) 
  8. Remenar JF, Hedrick JL, Miller RD, Hawker CJ, Yoon DY, Kim SM, Trollasas M, Polym. Prepr., 38, 631 (1998)
  9. Trollsas M, Hedrick JL, J. Am. Chem. Soc., 120(19), 4644 (1998) 
  10. Trollsas M, Hedrick JL, Mecerreyes D, Dubois P, Jerome R, Ihre H, Hult A, Macromolecules, 31(9), 2756 (1998) 
  11. Nguyen CV, Cater KR, Hawker CJ, Hedrick JL, Jaffe RL, Miller RD, Remenar JF, Rhee HW, Rice PM, Toney MF, Trollasas M, Yoon DY, Chem. Mater., 11, 3080 (1999) 
  12. Chaudhary AK, Critchley G, Diaf A, Beckman EJ, Russell AJ, Macromolecules, 29(6), 2213 (1996) 
  13. Yu D, Vladimirov N, Frechet JMJ, Macromolecules, 32(16), 5186 (1999) 
  14. Montaudo G, Montaudo MS, Puglisi C, Samperi F, Macromolecules, 28(13), 4562 (1995) 
  15. Lee HC, Lee WM, Chang TH, Yoon JS, Frater DJ, Mays JW, Macromolecules, 31(13), 4114 (1998) 
  16. Lee HC, Chang TH, Harville S, Mays JW, Macromolecules, 31(3), 690 (1998) 
  17. Chang T, Lee HC, Lee W, Park S, Ko C, Macromol. Chem. Phys., 200, 2188 (1999) 
  18. Lee HC, Lee W, Chang T, Korea Polym. J., 4(2), 160 (1996)