Article
  • Synthesis and Characterization of Hybrid Nanocomposites of Pd Nanoparticles Containing POSS(Pd-POSS) and Poly(acrylic acid) via Ionic Interactions
  • Jeon JH, Lim JH, Chujo Y, Kim KM
  • 실세스키옥세인을 포함한 팔라듐 나노입자와 폴리아크릴산과의 이온결합에 의한 나노복합체 제조 및 특성평가
  • 전종환, 임정혁, 주조 요시키, 김경민
Abstract
Pd-POSS nanoparticles were produced from the reaction of palladium(II) acetate and octa (3-aminopropyl)octasilsesquioxane octahydrochloride (POSS-NH3+) in methanol at room temperature. Pd-POSS nanoparticles with a mean diameter of 60-80 nm were the highly ordered spherical aggregates. In contrast, Pd nanoparticles with a size of 4.0 nm were obtained when POSS-NH3+ was not introduced. Pd-POSS/PAA nanocomposites of Pd-POSS nanoparticles and poly(acrylic acid) (PAA) were fabricated by utilizing ionic interactions between positively charged Pd-POSS nanoparticles and negatively charged carboxylate groups of PAA. PAA was used as a cross-linker for the preparation of hybrid nanocomposites with the controlled organized structures of Pd-POSS nanoparticles. That is, the self-organization of Pd-POSS nanoparticles was formed into the shape of continuous lines by using PAA as a cross-linker. The composition, structure, surface morphology, and thermal stability of the Pd-POSS/PAA nanocomposites were studied by FE-SEM, AFM, TEM, FT-IR, and TGA.

Pd-POSS 나노입자는 palladium(II) acetate와 octa(3-aminopropyl) octasilsesquioxane octahydrochloride(POSS-NH3+)를 메탄올 용매 하에 상온에서 제조하였다. POSS-NH3+를 이용한 Pd-POSS 나노입자의 크기는 약 60-80 nm의 직경인 구형으로 관찰되었다. 반면에, POSS-NH3+를 이용하지 않은 Pd 나노입자의 경우에는 4 nm 정도의 크기를 가진 것으로 확인되었다. Pd-POSS 나노입자와 poly(acrylic acid)(PAA)를 이용한 Pd-POSS/PAA 나노복합체는 양전하를 띠는 Pd-POSS 나노입자와 음전하를 띠는 PAA의 카르복실레이트 그룹의 정전기적 인력을 이용하여 제조하였다. Pd-POSS 나노입자는 유기고분자인 PAA에 의하여 일렬로 나열되어 있는 라인형태의 구조로 연결되었다. 즉, PAA를 cross-linker로 이용하여 Pd-POSS의 구조를 제어한 나노복합체를 합성하였다. Pd-POSS/PAA 나노복합체의 구조 및 형태와 열적 안정성은 FE-SEM, AFM, TEM, FT-IR과 TGA를 통하여 분석하였다.

Keywords: polyhedral oligomeric silsesquioxane(POSS); poly(acrylic acid); hybrid nanocomposites; Pd nanoparticles

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2009; 33(6): 615-619

    Published online Nov 25, 2009

  • Received on Aug 14, 2009
  • Accepted on Sep 3, 2009