화학공학소재연구정보센터
Macromolecular Research, Vol.19, No.11, 1195-1201, November, 2011
Nanocomposite Membranes Consisting of Poly(vinyl chloride) Graft Copolymer and Surface-Modified Silica Nanoparticles
E-mail:,
A graft copolymer of poly(vinyl chloride)-graft-poly(oxyethylene methacrylate) (PVC-g-POEM) was synthesized via atom transfer radical polymerization (ATRP), and fumed silica (SiO2) nanoparticles were modified by grafting POEM via a three-step synthetic approach. The resultant graft copolymer and modified SiO2 nanoparticles were solution blended to prepare PVC-g-POEM/SiO2-POEM nanocomposite membranes. Uniform distribution of SiO2-POEM nanoparticles in the membranes and microphase-separated morphology were confirmed by transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). X-ray diffraction (XRD) analysis revealed increased randomness in the amorphous phase of PVC-g-POEM and continuous decrease in the interchain d-spacing with increased SiO2-POEM content, indicating a more closely packed nanocomposite membrane structure. The mechanical properties of PVC-g-POEM/SiO2-POEM membranes were superior to those of PVC-g-POEM, resulting from strong interfacial interactions in the membranes due to the segregation and entanglement of the POEM chains. In addition, the permeation performances of the PVC-g-POEM/SiO2-POEM nanocomposite membranes were somewhat better than those of PVC-g-POEM, which showed excellent CO2/N2 and CO2/H2 separation capabilities. For example, the CO2 permeability and CO2/N2 selectivity of PVC-g-POEM/SiO2-POEM (2%) at 35 ℃ were 200 Barrer and 43, respectively. Thus, we successfully prepared membranes that deliver high permeation properties, as well as good mechanical properties.
  1. Robeson LM, J. Membr. Sci., 320(1-2), 390 (2008)
  2. Peter J, Khalyavina A, Kriz J, Bleha B, Eur. Polym. J., 45, 1716 (2009)
  3. Jung CH, Lee YM, Macromol. Res., 16(6), 555 (2008)
  4. Merkel TC, Freeman BD, Spontak RJ, He Z, Pinnau I, Meakin P, Hill AJ, Science, 296, 519 (2002)
  5. Merkel TC, Freeman BD, Spontak RJ, He Z, Pinnau I, Meakin P, Hill AJ, Chem. Mater., 15, 109 (2003)
  6. Prado L, Sforca ML, de Oliveira AG, Yoshida IVP, Eur. Polym. J., 44, 3080 (2008)
  7. Topuz B, Ciftcioglu M, J. Membr. Sci., 350(1-2), 42 (2010)
  8. Sadeghi M, Khanbabaei G, Dehaghani AHS, Sadeghi M, Aravand MA, Akbarzade M, Khatti S, J. Membr. Sci., 322(2), 423 (2008)
  9. Sadeghi M, Semsarzadeh MA, Moadel H, J. Membr. Sci., 331(1-2), 21 (2009)
  10. Patel NP, Miller AC, Spontak RJ, Adv. Mater., 15(9), 729 (2003)
  11. Patel NP, Aberg CM, Sanchez AM, Capracotta MD, Martin JD, Spontak RJ, Polymer, 45(17), 5941 (2004)
  12. Husain S, Koros WJ, J. Membr. Sci., 288(1-2), 195 (2007)
  13. Ahn SH, Seo JA, Kim JH, Ko Y, Hong SU, J. Membr. Sci., 345(1-2), 128 (2009)
  14. Shao L, Chung TS, Int. J. Hydrog. Energy, 34(15), 6492 (2009)
  15. Park I, Peng HG, Gidley DW, Xue SQ, Pinnavaia TJ, Chem. Mater., 18, 650 (2006)
  16. Ahn SH, Koh JH, Seo JA, Kim JH, Chem. Commun., 46, 1935 (2010)
  17. Lee KJ, Park JT, Goh JH, Kim JH, J. Polym. Sci. A: Polym. Chem., 46(12), 3911 (2008)
  18. Chen GJ, Zhu XL, Cheng ZP, Lu JM, J. Appl. Polym. Sci., 96(1), 183 (2005)
  19. Trapa PE, Won YY, Mui SC, Olivetti EA, Huang BY, Sadoway DR, Mayes AM, Dallek S, J. Electrochem. Soc., 152(1), A1 (2005)
  20. Zuo XT, Yu SL, Xu X, Bao RL, Xu J, Qu WM, J. Membr. Sci., 328(1-2), 23 (2009)
  21. Zhou L, Yuan W, Yuan J, Hong X, Mater. Lett., 62, 1372 (2008)
  22. Park JT, Koh JH, Koh JK, Kim JH, Appl. Surf. Sci., 255(6), 3739 (2009)
  23. Koh JH, Kim YW, Park JT, Kim JH, J. Polym. Sci. B: Polym. Phys., 46(7), 702 (2008)
  24. Kim YK, Park HB, Lee YM, J. Membr. Sci., 243(1-2), 9 (2004)
  25. Park HB, Kim JK, Nam SY, Lee YM, J. Membr. Sci., 220(1-2), 59 (2003)
  26. Joly C, Smaihi M, Porcar L, Noble RD, Chem. Mater., 11, 2331 (1999)
  27. Garcia M, Barsema J, Galindo RE, Cangialosi D, Garcia-Turiel J, Van Zyl WE, Verweij H, Blank DHA, Polym. Eng. Sci., 44(7), 1240 (2004)