화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.36, No.1, 104-110, January, 2012
Export Citation
Copper Phthalocyanine Pigment의 분산을 위한 (2-Dimethylamino)ethyl Methacrylate와 Oligo(ethylene oxide)methyl Ether Methacrylate를 포함하는 잘 규정된 블록 공중합체형 분산제의 원자 이동 라디칼 중합을 이용한 합성
Synthesis of Well-Defined Block Copolymer Dispersants with (2-Dimethylamino)ethyl Methacrylate and Oligo(ethylene oxide)methyl Ether Methacrylate via ATRP for Dispersing Copper Phthalocyanine Pigment
김은희, 김봉수, 정기석1, 김진구1, 백현종†
  • 부산대학교 고분자공학과
  • 1이리도스(주)
Eunhee Kim, Bong-Soo Kim, Ki-Suk Jung1, Jin-Goo Kim1, and Hyun-jong Paik†
  • Department of Polymer Science and Engineering, Pusan National University, Busan 609-735, Korea
  • 1Iridos Ltd., 383, Daejeong-ri Onsan-eup, Ulju-gun, Ulsan 689-892, Korea
E-mail:
초록
LCD 컬러필터에서 안료의 분산은 컬러 강도를 증가시키는 중요한 요소이므로, 안료를 분산시키기 위한 안료 분산제의 첨가는 필수적이라 할 수 있다. 안료 분산제로서의 고분자는 안료와의 친화성을 가지는 anchoring group과 매체와의 혼화성을 가지는 stabilizing group을 포함하고 있다. 원자 이동 라디칼 중합은 잘 규정된 고분자 합성을 가능하게 하는 중합법으로, 이러한 구조를 포함하는 고분자형 안료 분산제를 얻기 위한 적절한 수단이 될 수 있다. Anchor로서 (2-dimethylamino)ethyl methacrylate를, stabilizer로서 oligo(ethylene oxide)methyl ether methacrylate를 각각 선택해 고분자 분산제를 합성하였다. 고분자의 구조 및 조성이 안료 분산에 미치는 영향을 연구하기 위해 다양한 길이의 stabilizing group을 가지는 diblock copolymer를 합성하여 비교하였다.
The dispersion of pigment particles is important because it is capable of increasing the color strength, contrast, and transmittance of color-LCD products. Pigment dispersion properties are very important factors for the quality of LCD color filters. The chemical structure of polymeric dispersants for pigment is important to improve dispersion stability and prevent aggregation or flocculation of pigment in organic or aqueous systems. Polymeric dispersants should contain both anchoring group that interacts with pigment surface and stabilizing group that provides steric stabilization. Moreover, the molecular weight and composition of block copolymer have the an effect on pigment dispersion. In this study, adequate dispersants, block copolymers containing (2-dimethylamino)ethyl methacrylate as anchoring group and oligo(ethylene oxide)methyl ether methacrylate as a stabilizing group were designed and synthesized by atom transfer radical polymerization in order to prepare well-defined structure, molecular weight and composition.
Keywords:LCD color filter;diblock copolymer;dispersants;pigment;ATRP.
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