Polymer(Korea) (폴리머)

The Polymer Society of Korea (한국고분자학회)
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Effect of Co-monomer on the Physical Properties of Poly(ethylene naphthalate) Copolymer

단량체의 종류에 따른 폴리(에틸렌 나프탈레이트) 공종합체의 물성 연구

  • Kim, Jae-Hyun (Center for Photofunctional Energy Materials, Department of Polymer Science and Engineering, Dankook University) ;
  • Heo, Hye-Young (SKC Central R&D Center) ;
  • Jung, Tae-Houng (SKC Central R&D Center) ;
  • Han, Joon-Hee (SKC Central R&D Center) ;
  • Kang, Ho-Jong (Center for Photofunctional Energy Materials, Department of Polymer Science and Engineering, Dankook University)
  • 김재현 (광 에너지 소재 연구센터, 단국대학교 고분자시스템공학과) ;
  • 허혜영 (SKC(주)) ;
  • 정태형 (SKC(주)) ;
  • 한준희 (SKC(주)) ;
  • 강호종 (광 에너지 소재 연구센터, 단국대학교 고분자시스템공학과)
  • Received : 2010.09.23
  • Accepted : 2010.11.08
  • Published : 2011.03.25
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Abstract

The physical properties of poly (ethylene 2,6-naphthalate) (PEN) copolymers were studied. PEN copolymers were synthesized successfully from the mixtures of ethylene glycol(EG), 1,3-propanediol (PD) and l,4-butanediol (BD) with 2,6-dimethyl naphthalene dicarboxylate. The results indicated that PEN copolymers showed an amorphous state when the content of BD(PD) in applied EG/BD(EG/PD) mixtures was less than 40% during the polycondensation. As a result, the lowering of thermal properties, orientation, and mechanical properties was found, however, the dimensional stability was improved. This is a promising result to apply the synthesized PEN copolymers as flexibles substrates.

폴리(에틸렌 나프탈레이트) 중합 시 2,6-dimethyl naphthalene dicarboxylate와 함께 사용되는 디올 화합물인 ethylene glycol(EG), 1,3-propanediol(PD) 그리고 1,4-butanediol(BD)의 사용에 따른 공중합체의 물성을 살펴보았다. EG와 함께 PD 혹은 BD를 40% 이내 첨가하는 경우 합성된 폴리에스터가 무정형을 유지함을 알 수 있으며 이는 열적 특성과 배향 특성, 그리고 기계적 특성을 저하시키는 반면 치수안정성을 증가시킴을 획인할 수 있어 합성 폴리에스터가 유연기판 소재로의 적용 가능성을 확인하였다.

Keywords

References

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