Polymer(Korea) (폴리머)

The Polymer Society of Korea (한국고분자학회)
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Effect of Chemical Structure of Acrylate Monomer on the Transparent Acrylic Pressure Sensitive Adhesives for Optical Applications

광학용 아크릴 점착제내 단량체 화학구조에 따른 점착특성

  • Baek, Seung-Suk (Department of Polymer Science & Engineering and Center for Photofunctional Energy Materials, Dankook University) ;
  • Jang, Se-Jung (Department of Polymer Science & Engineering and Center for Photofunctional Energy Materials, Dankook University) ;
  • Lee, Sang Won (Department of Chemical Engineering, Soongsil University) ;
  • Hwang, Seok-Ho (Department of Polymer Science & Engineering and Center for Photofunctional Energy Materials, Dankook University)
  • 백승석 (단국대학교 고분자공학과, 광에너지소재연구센터) ;
  • 장세정 (단국대학교 고분자공학과, 광에너지소재연구센터) ;
  • 이상원 (숭실대학교 화학공학과) ;
  • 황석호 (단국대학교 고분자공학과, 광에너지소재연구센터)
  • Received : 2014.04.20
  • Accepted : 2014.05.19
  • Published : 2014.09.25
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Abstract

To prepare transparent acrylic pressure sensitive adhesives (PSAs), terpolymer syrups were photopolymerized from 2- ethylhexyl acrylate and 2-hydroxyethyl acrylate with third monomer having different chemical structure. After polymerization, 1,6-hexanediol diacrylate as a crosslinker and a photoinitiator were added and then UV-irradiated to prepare the PSAs. The adhesion performances and optical characteristics of the PSAs were investigated. Their adhesion performance was dependent on the composition of monomers in the polymer chain but optical properties were maintained at a suitable level. The PSAs prepared by bulky and heteroatom-containing monomers such as IBOA, THFA, and ACMO showed better adhesion performance than others.

2-Ethylhexyl acrylate와 2-hydroxyethyl acrylate의 기본구조에 다양한 곁사슬 화학구조를 가지는 단량체의 종류를 변화시키면서 광중합된 고투명 3원 공중합체 시럽을 합성하였다. 시럽에 가교제로 1,6-hexanediol diacrylate와 광개시제를 혼합한 후 UV-광원을 조사시켜 점착제(PSAs)를 제조하여 점착특성과 광학특성을 고찰하였다. PSAs의 점착물성은 단량체 종류에 따른 조성비에 크게 의존하고 있으나, 광학적 특성이 유사함을 확인하였다. 상대적으로 부피가 큰 분자이면서 헤테로 원소를 포함하고 있는 IBOA, THFA, ACMO 단량체가 n-BA, VAc, CHA 단량체보다 좋은 점착물성을 보여주었다.

Keywords

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