화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korea Polymer Journal, Vol.8, No.2, 95-101, April, 2000
Export Citation
Effects of Intercalant on the Dispersibility of Silicate Layers in Claydispersed Nanocomposite of Poly(styrene-co-acrylonitrile) Copolymer
Moon Bae Ko†, Min Park, Junkyung Kim, and Chul Rim Choe
  • Polymer Hybrid Research Center, Korea Institute of Science and Technology, Seoul 130-650, Korea
E-mail:
Clay/poly(styrene-co-acrylonitrile) copolymer (SAN) hybrids have been prepared by simple meltmixing of two components, SAN and organophilic clays with a twin screw extruder. Effects of intercalant on the dispersibility of silicate layers in clay-dispersed nanocomposite were studied by using five different organophilic clays modified with the intercalants of different chemical structures and different fractions of intercalant. The dispersibility of 10-Å -thick silicate layers of clay in the hybrid was investigated by using an X-ray diffractometer and a transmission electron microscope. It wa found that if the fraction of intercalant in the organophilic clay becomes too high, SAN is difficult to intercalate into the inter-gallery of silicate layers in the hybrid prepared at 180℃ , and thus the hybrid shows poor dispersibility of silicate layers. The flexural modulus of the hybrid increases as the dispersibility of silicate layers in the hybrid increases.
  1. Wang MS, Pinavaia TJ, Chem. Mater., 6, 468 (1994) 
  2. Massersmith PB, Giannelis EP, Chem. Mater., 6, 1719 (1994) 
  3. Lan T, Kaviratana PD, Pinavaia TJ, Chem. Mater., 7, 2144 (1995) 
  4. Burnside SD, Gianellis EP, Chem. Mater., 7, 1597 (1995) 
  5. Vaia RA, Jandt KD, Kramer EJ, Giannelis EP, Macromolecules, 28(24), 8080 (1995) 
  6. Jimenez G, Ogata N, Kawai H, Ogihara T, J. Appl. Polym. Sci., 64(11), 2211 (1997) 
  7. Kato M, Usuki A, Okada A, J. Appl. Polym. Sci., 66(9), 1781 (1997) 
  8. Kawasumi M, Hasegawa N, Kato M, Usuki A, Okada A, Macromolecules, 30(20), 6333 (1997) 
  9. Ogata N, Kawakage S, Ogihara T, J. Appl. Polym. Sci., 66(3), 573 (1997) 
  10. Hasegawa N, Kawasumi M, Kato M, Usuki A, Okada A, J. Appl. Polym. Sci., 67(1), 87 (1998) 
  11. Smock D, Modern Plastics, 28(2), 28 (1998)
  12. Hackett E, Manias E, Giannelis EP, J. Chem. Phys., 108(17), 7410 (1998) 
  13. Grande JA, Modern Plastics, 29(1), 35 (1999)
  14. Vaia RA, Ishii H, Gianellis EP, Chem. Mater., 5, 1694 (1993) 
  15. Akelah A, Moet A, J. Mater. Sci., 31(13), 3589 (1996)
  16. Hasegawa N, Okamota H, Kawasumi M, Usuki A, Proceedings of the ACS Division of Polymer Materials: Science and Engineering, 80, 353 (1999)
  17. Lagaly G, Clay Minerals, 16, 1 (1981) 
  18. Lan T, Kaviratna PD, Pinnavaia TJ, J. Phys. Chem. Solids, 57, 1005 (1996) 
  19. Torok B, Bartok M, Dekany I, Colloid Polym. Sci., 227, 340 (1999) 
  20. Gedde UW, Polymer Physics, Chapman & Hall, London, 147 (1995)
  21. Ko MB, Lim S, Kim J, Choe CR, Lee MS, Ha MG, Korea Polym. J., 7(5), 310 (1999)