Journal of Adhesion and Interface (접착 및 계면)

The Society of Adhesion and Interface, Korea (한국접착및계면학회)
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Preparation of Monodisperse Blue-colored Polymeric Particles with High Zeta-potential

높은 제타전위를 갖는 단분산의 블루착색 고분자미립자의 제조

  • Lee, Ki-Chang (Department of Polymer Science and Engineering, School of Nano and Advanced Materials Engineering, Gyeongsang National University) ;
  • Nam, Sang-Yong (Department of Polymer Science and Engineering, School of Nano and Advanced Materials Engineering, Gyeongsang National University)
  • 이기창 (경상대학교 나노.신소재공학과) ;
  • 남상용 (경상대학교 나노.신소재공학과)
  • Received : 2012.07.26
  • Accepted : 2012.09.03
  • Published : 2012.08.31
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Abstract

Monodisperse blue-colored poly(styrene-co-acrylic acid) latices were successfully prepared by seeded emulsion polymerization. Blue-colored latices with carboxyl anionic charge on the surface were synthesized at the second stage with the introduction of Blue 606 dye, acrylic acid, and 0.21 ${\mu}m$-polystyrene seed. All the blue-colored latices synthesized in this study were in the size range of 0.25~0.42 ${\mu}m$ and all uniform with less than 1.01 in PSD. The particle size increased with the addition of acrylic acid being delayed and colloidally stable latices were obtained over 30 min after its addition. The blue-colored latex with 20 wt% acrylic acid showed -145 mV of zeta-potential and $-9.4{\times}10^{-6}\;cm^2/Vs$ of electrophoretic mobility, and with 25 wt% of DVB showed high $T_g$ at 396.7 K.

2단계 유화중합에 의한 단분산의 블루칼라 착색 poly(styrene-co-acrylic acid) 라텍스를 성공적으로 제조하였다. 0.21 ${\mu}m$의 polystyrene 시드를 이용하여 중합 2단계에서 Blue 606 염료와 acrylic acid의 중합으로 carboxyl 음이온을 갖는 블루칼라 라텍스를 합성하였다. 본 연구에서 제조한 블루칼라 라텍스는 모두 1.01 이하의 우수한 단분산도를 가지며 0.25~0.42 ${\mu}m$ 범위의 입자경을 나타내었다. 중합 2단계에서 acrylic acid 부가시간이 늘어남에 따라 입자경은 증가하였고 30 min 이상으로 늘어남에 따라 콜로이드 안정성을 갖는 블루칼라 라텍스가 제조되었다. 20 wt% AA 농도에서 -145 mV의 제타전위와 $-9.4{\times}10^{-6}\;cm^2/Vs$의 전기영동이동도를 나타내었다. 25 wt% DVB 농도하에서 396.7 K의 높은 유리전이온도를 나타내었다.

Keywords

Acknowledgement

Grant : 부품소재기술개발사업 중 전자종이(E-paper)용 코팅소재개발

Supported by : 지식경제부

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