ブロックポリマーの逆ミセルを用いたZnOナノ粒子の合成とZnO/PMMAハイブリッドの作製  [in Japanese] Synthesis of ZnO Nanoparticles Using Reverse Micelles of Block Copolymer Hybridized with ZnO/PMMA  [in Japanese]

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Author(s)

    • 吉永 耕二 YOSHINAGA Kohji
    • 長崎大学大学院工学研究科 Division of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki University
    • 米澤 敦史 YONEZAWA Atsushi
    • 長崎大学大学院工学研究科 Division of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki University
    • 小椎尾 謙 KOJIO Ken
    • 長崎大学大学院工学研究科 Division of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki University

Abstract

ポリ(メタクリル酸メチル)(PMMA)とポリ(アクリル酸)(PAA)のブロックポリマー(PMMA-<i>b</i>-PAA)の逆ミセルコア内でのZnOナノ粒子の合成,つづくPMMAとのハイブリッド化による高透明フィルムの作製を行った.PMMA-<i>b</i>-PAAの逆ミセルトルエン溶液へジエチル亜鉛を加えてコア内にZnO前駆体を包含したミセル溶液を調製し,この逆ミセル溶液を用いたキャスト法によるハイブリッドフィルムの作製はZnO粒子の凝集を招いた.ZnO前駆体を包含した逆ミセル溶液を凍結乾燥し,得られた粉末とPMMAとのホットプレスによって最大30 wt %のZnOを含有した透明性の高いZnO/PMMAハイブリッドフィルムを作製することができた.このフィルムの屈折率はZnO含有量とともに増大し,計算値と一致した.X線回折からZnO粒子が結晶化していること,およびTEM観察からPMMAバルク中にZnO粒子を含むドメインが存在していることが観察された.

Synthesis of zinc oxide nanoparticles in the core of reverse micelles of poly(methyl methacrylate)-<i>block</i>-poly(acrylic acid) (PMMA-<i>b</i>-PAA) in toluene, and succeeding hybridization with poly(methyl methacylate) (PMMA) to fabricate transparent hybrid films was investigated. Inclusion of a ZnO precursor into the cores of the reverse micelles formed in toluene was carried out by addition of diethyl zinc, and heating the resulting solution to 125°C in an autoclave to form ZnO that formed crystals. Fabrication of ZnO/PMMA hybrid films by a casting method using a mixed solution of the reverse micelles and PMMA resulted in low transparency films due to aggregation of ZnO nanoparticles during film forming. Freeze drying of the reverse micelle solution to prepare a ZnO/PMMA hybrid powder and succeeding hybridization with PMMA by hot-pressing at 150°C and 20 MPa gave highly transparent ZnO/PMMA hybrid films, refractive indexes of which were coincident with calculated values. TEM images showed small domains of PMMA and domains containing ZnO nanoparticles.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 71(12), 644-650, 2014

    The Society of Polymer Science, Japan

Codes

  • NII Article ID (NAID)
    130004793148
  • NII NACSIS-CAT ID (NCID)
    AN00085011
  • Text Lang
    JPN
  • ISSN
    0386-2186
  • NDL Article ID
    026003173
  • NDL Call No.
    Z17-92
  • Data Source
    NDL  J-STAGE 
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