Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Synthesis of Polyaminostyrene and Reverse Osmosis Characteristic of Inte4acially Polymerized Composite Membranes with Acyl Halides

Polyaminostyrene 합성 및 Acyl Halide와의 계면중합 생성 복합막의 역삼투 투과특성

  • No, Il-Jun (Korea Institute of Science and Technology) ;
  • Ha, Wan-Sik (Korea Institute of Science and Technology)
  • 노일준 (한국과학기술연구원 고분자부) ;
  • 하완식 (한국과학기술연구원 고분자부)
  • Published : 1996.11.01

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Abstract

Poly(4-nitrostyrene) was synthesised by nitration of polystyrene and poly(3-ni-trostyrene) was synthesized by free radical bulk polymerization of 3-nitrostyrene. Polyaminostyrene(PAS) was synthesized by reduction of polynitrostyrene. Composite reverse osmosis(RO) membranes were fabricated via interfacial polycondensation of PAS and trimesoyl chloride(TMC) on the polysulfone support membrane surface. As the RO properties, salt rejection of poly(3-aminostyrene)(mPAS) membrane was better than poly(4-aminostyrene) (pPAS), but vice versa for permeate flux. The blend of 1, 3-phenylene diamine(mPDA) monomer in PAS reaction solution increased the salt rejection and the blend of acyl halide monomer in TMC reaction solution increased the permeate flux. The RO performance of mPAS and pPAS, in which various composition of the blended solutions were added, was found to be not much different. In particular, the PAS composite membrane which was prepared by interfacial polymerization of PAS/mPDA(70/30) blend solution and TMC/benzoyl chloride(80/20) blend solution showed a permeate flux of up to 1.0$\ell$/$m^2$.hr.atm and a salt rejection of over 90%.

Keywords

References

  1. J. Am. Water Works Assoc. v.81 no.11 W. J. Conlon;S. A. mcClellan
  2. Desalination v.48 C. S. Slater;R. C. Ahlert;c. G. Uchrin
  3. Advances in Reverse Osmosis and Ultrafiltration M. Matsuura;S. Souririjan(eds.)
  4. J. Membrane Sci. v.83 R. J. Petersen
  5. ACS Symposium Series 269 Materials Science of Synthetic Membrance D. R. Lloyd(ed.)
  6. U.S. Pat., 4,277,344 J. E. Cadotte
  7. U.S. Pat., 4,895,661 J. E. Cadotte
  8. Ashahi Garasu Kenkyu Hokoku v.37 no.1 H. Kawahara;T. Yasuda;M. Nakamura
  9. Desalination v.62 J. She;X. Shen
  10. J. Membrane Sci. I. J. Roh;S. Y. Kwak;J. J. Kim
  11. NTIS report No. PB-229337, loc. cit In-Situ-Formed Condensation Polymer for Reverse Osmosis Membranes J. E. Cadotte;L. T. Rozelle