Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Photo-responsive Smart Polymer Materials

광 응답형 스마트 고분자 소재

  • Yu, Jong-Su (Department of Polymer Science and Engineering, Chosun University) ;
  • Lee, Seong-Yun (Department of Polymer Science and Engineering, Chosun University) ;
  • Na, Hee-Yeong (Department of Polymer Science and Engineering, Chosun University) ;
  • Ahn, Tae-Jung (Department of Photonic Engineering, Chosun University) ;
  • Kim, Hyun-Kyoung (Department of Polymer Science and Engineering, Chosun University)
  • 유종수 (조선대학교 응용화학소재공학과) ;
  • 이성윤 (조선대학교 응용화학소재공학과) ;
  • 나희영 (조선대학교 응용화학소재공학과) ;
  • 안태정 (조선대학교 광기술공학과) ;
  • 김현경 (조선대학교 응용화학소재공학과)
  • Received : 2012.10.23
  • Accepted : 2012.11.12
  • Published : 2012.12.31
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Abstract

Control of shape/volume, mechanical, optical, electrical, and chemical switching of materials by external stimuli such as light, temperature, pH, electric field, and pressure has attracted great attention. Among these materials, photo-responsive materials containing photochromic compounds such as azobenzene, spiropyran, and cinnamic acid groups have been the subject of intense interest in recent years. In this review, we describe the recent progress in the area of azobenzene containing polymer materials that can convert light energy into mechanical energy directly. Especially we focus our attention on light-driven actuators such as artificial muscle, motor, and valve. We summarize the photomechanical effects in liquid crystal elastomer, amorphous polymer, monolayer, and supramolecules containing azobenzene, respectively.

최근 들어 광, 온도, pH, 전기, 자성, 압력 등과 같은 외부 환경의 작은 변화에도 반응하여 모양/부피가 변하거나 기계적, 광학적, 전기적, 화학적 특성 등이 가역적으로 바뀌는 스마트 소재에 대한 관심이 높아지고 있다. 이러한 스마트 소재들 중 광조사에 의해 소재의 다양한 특성을 가역적으로 제어할 수 있는 광응답 스마트 소재가 많은 관심을 받고 있다. 본 논문에서는 광에너지를 받아 기계적 에너지로 바로 전환되어 인공근육, 모터 등과 같은 액츄에이터 기능을 할 수 있는 광구동형 스마트 고분자 소재들에 대해 소개하고자 한다. 특히, 광구동형 스마트 고분자 소재 중에서도 마이크로와 매크로 스케일 변형이 가능한 아조벤젠을 함유한 비결정성 고분자, 액정 고분자, 자기 조립형 초분자에 대한 다양한 연구들에 대해 설명하고자 한다.

Keywords

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