Article
  • Preparation of Polystyrene Particles Containing Poly(ethylene glycol) Groups and Their Surface Charge Characterization in Dielectric Medium
  • Kim SH, Kim BJ, Kwon DI, Park KH
  • 폴리(에틸렌 글리콜)기를 갖는 폴리스티렌 입자의 제조와 유전 매질내에서의 표면 전하 특성
  • 김성훈, 김배중, 권대익, 박기홍
Abstract
Polystyrene particles (PS) with poly(ethylene glycol) units on surface were formed by an emulsifier-free emulsion polymerization using styrene, poly(ethylene glycol) methacrylate (PEG-MMA) or poly(ethylene glycol) dimethacrylate (PEG-diMMA) at pH 7, and followed by freeze-drying to give the corresponding powders. The structures of PS particles were confirmed by FT-IR spectroscopy, and the particle size and distribution the PS particle were observed by scanning electron microscopy and particle analyzer. Monodisperse polymer particles were obtained at a concentration of PEG-MMA 2~5 mol% or PEG-diMMA 1 mol% relative to styrene. The highest zeta potential of polymer surface was measured to be 183 mV at a polymer of PEG-MMA 5 mol%, which was measured in dielectric medium by means of ELS-8000 dynamic light scattering.

스티렌, 폴리(에틸렌 글리콜) 메타크릴레이트 (PEG-MMA) 혹은 폴리(에틸렌 글리콜) 디메타크릴레이트 (PEG-diMMA)를 중성 매질에서 무유화제 (emulsifier-free) 유화 중합하여 표면에 에틸렌 글리콜기를 갖는 폴리스티렌 입자를 합성하였고, 이로부터 동결 건조되어진 분말을 제조하였다. 고분자 분말은 FT-IR 분광기로 구조를 확인하였고, 광산란 입도 분석기와 주사 전자 현미경 (SEM)을 이용하여 입자 크기와 분산도를 조사하였다. 스티렌에 대하여 공단량체 PEG-MMA는 2~5 mol%, PEG-diMMA는 1 mol% 농도 부근에서 균일한 입자 크기를 얻을 수 있었다. 합성된 입자의 표면 전하를 유전 매질 내에서 ELS-8000 광산란법을 이용하여 제타 포텐셜을 측정하였다. 스티렌에 대하여 PEG-MMA 5 mol%에서 183 mV의 아주 높은 제타 포텐셜이 측정되었다.

Keywords: emulsifier-free emulsion polymerization; poly(ethylene glycol) methacrylate; poly(ethylene glycol)dimethacrylate; polystyrene powders; zeta potential

References
  • 1. Bovey FAEmulsion Polymerization, Interscience, New York (1965)
  •  
  • 2. Blackley DCEmulsion Polymerization, Applied Science, London (1975)
  •  
  • 3. Matsumoto T, Ochi A, Kobunshi Kagaku, 22, 481 (1965)
  •  
  • 4. Vanderhoff JW, Van den Hul HJ, J. Macromol. Sci. Chem., A7, 677 (1973)
  •  
  • 5. Zhang GZ, Li XL, Jiang M, Wu C, Langmuir, 16(24), 9205 (2000)
  •  
  • 6. Reese CE, Asher SA, J. Colloid Interface Sci., 248(1), 41 (2002)
  •  
  • 7. Chen X, Cui ZC, Chen ZM, Zhang K, Lu G, Zhang G, Yang B, Polymer, 43(15), 4147 (2002)
  •  
  • 8. Sunkara HB, Jethmalani JM, Ford WT, J. Polym. Sci. A: Polym. Chem., 32(8), 1431 (1994)
  •  
  • 9. Park KH, Im SS, Kim CY, Polym.(Korea), 12(6), 489 (1988)
  •  
  • 10. Goodall AR, Wilkinson MC, Hearn J, J. Polym. Sci. A: Polym. Chem., 15, 2193 (1977)
  •  
  • 11. Liu LJ, Krieger IM, J. Polym. Sci. A: Polym. Chem., 19, 3013 (1981)
  •  
  • 12. Yun JP, Park YH, Lee S, Park KH, Lee CJ, Polym.(Korea), 27(2), 159 (2003)
  •  
  • 13. Wang Q, Fu S, Yu T, Prog. Polym. Sci, 19, 703 (1994)
  •  
  • 14. Fitch RM, Prenosil MP, Sprick KJ, J. Polym. Sci. Part C, 27, 95 (1969)
  •  
  • 15. Lichti G, Gilbert RG, Napper DH, J. Polym. Sci. A: Polym. Chem., 21, 269 (1983)
  •  
  • 16. Feeney PJ, Napper DH, Gilbert RG, Macromolecules, 20, 2922 (1987)
  •  
  • 17. Chang HS, Chen SA, J. Polym. Sci. A: Polym. Chem., 26, 1207 (1988)
  •  
  • 18. Chern CS, Poehlein GW, J. Polym. Sci. A: Polym. Chem., 25, 617 (1987)
  •  
  • 19. Zurkova E, Bouchal K, Kalal J, Pelzbauer Z, Svec F, Zdenkova D, J. Polym. Sci. A: Polym. Chem., 21, 2949 (1983)
  •  
  • 20. Cho MS, Cho YH, Choi HJ, Jhon MS, Langmuir, 19(14), 5875 (2003)
  •  
  • 21. Comiskey B, Albert JD, Yoshizawa H, Joseph J, Nature, 394, 253 (1998)
  •  
  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2004; 28(6): 524-530

    Published online Nov 25, 2004

  • Received on Aug 3, 2004
  • Accepted on Nov 4, 2004