• A Study on the Synthesis of Polysulfone-Acrylic acid Graft Copolymers by Irradiation and Their Adsorption haracteristics of Metal Ions
  • Hwang TS, Hwang DS, Lee JM, Hwang EH
  • 방사선중합에 의한 폴리술폰-아크릴산 그라프트 공중합체의 합성 및 그 금속이온 흡착특성에 관한 연구
  • 황택성, 황대성, 이정미, 황의환
Abstract
The PSF-g-AAc copolymers were synthesized by the irradiational grafting of acrylic acid onto polysulfone membrane. The synthesis of copolymer was evidenced by the bands at 1720, 3100 cm-1 in the FR-IR spectrm. The initial thermal degradation temperature of PSF-g-AAc copolymers was about 250 ℃. After the adsorption of metal ions of PSF-g-AAc copolymers, various types of morphology with small brain, lump and sponge shape were observed by SEM. The optimal time for the metal ion adsorption equilibrium on PSF-g-AAc copolymers was 24 hrs and their adsorption capacties increased in the order of Cu2+>Ni2+>>Co2+>Mn2+>. The adsorption capacities of PSF-g-AAc copolymers were not varied even after more than 10 times of regeneration.

방사선 전조사법을 이용하여 아크릴산을 polysulfone 막에 그라프트 반응시켜 PSF-g-AAc 공중합체를 합성하였다. 합성한 공중합체의 FT-IR 결과 1720, 3100cm-1 부근에서 C=0, -OH에 대한 피크가 확인되었고, PSF-g-AAc 고중합체의 초기 열분해 온도가 250 ℃에서 나타났다. 금속이온 흡착후에 공중합체의 표면은 작은 혹, 좁쌀, 뇌형태 및 스펀지 형태 등이 관찰되었고, PSF-g-AAc 공중합체의 금속이온에 대한 흡착능의 최적시간은 24시간이었으며 동일 조건하에서의 흡착능은 Cu2+>Ni2+>Co2+>Mn2+의 순서로 Cu2+이온이 최대 흡착량을 나타내었다. 또한 PSF-g-AAc 공중합체는 10회 이상 흡착능의 변화없이 흡탈착이 가능한 흡착제임을 알 수 있었다.

Keywords: irradiation; grafting reaction; thermal stability; adsorption

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2024 Impact Factor : 0.6
  • Indexed in SCIE

This Article

  • 1999; 23(5): 632-638

    Published online Sep 25, 1999