• A Novel Soluble Electrochromic Polymer: Poly[1,4-bis(2-(3,4-ethylenedioxy)thienyl)-2,4-dialkoxybenzene]
  • Lee Y, Son Y, Reynolds JR
  • 새로운 가용성 저기변색 고분자 : Poly[1,4-bis(2-(3,4-ethylenedioxy)thienyl)-2,4-dialkoxybenzene]
  • 이영관, 손용근, Reynolds JR
Abstract
A novel electrochromic polymer, poly[1,4-bis(2-(3,4-ethylenedioxy)thienyl)-2,4-dialkoxybenzene] (PBEDT) was synthesized. A branched alkyl chain was substituted into monomer structure in order to enhance the solubility. PBEDT was synthesized by chemical or electrochemical polymerization, and a resulting polymer was highly soluble in organic solvents such as chloroform and THF. During cyclic voltammetry of the polymer film, the in-situ potential. As the polymer was oxidized by the positive scan of potential, this band decreased gradually and a new absorption band at 800 nm appeared.

새로운 구조의 전기변색 고분자인 poly[1,4-bis(2-(3,4-ethylenedioxy)thienyl)-2,4-dialkoxybenzene] (PBEDT)을 합성하였다. 유기용매에의 가용성을 증진시키기 위하여 단량체의 구조에 가지형의 알킬사슬을 치환하였다. PBEDT는 화학적으로 또는 전기화학적으로 쉽게 중합되었으며 클로로포름이나 THF 등의 일반 유기용매에 잘 용해되었다. PBEDT를 전기화학적으로 산화/환원시 in-situ UV-Vis 스펙트럼을 관찰한 결과, 초기의 낮은 전위에서는 550 nm 영역의 흡수만이 나타났으며 주사전압이 증가하여 고분자 필름의 산화가 진행됨에 따라 이 흡수띠의 세기는 점차로 감소하는 동시에 800 nm 영역의 흡수띠의 세기가 증가함을 관찰할 수 있었다.

Keywords: electrochromic; poly[1,4-bis(2-(3,4-ethylenedioxy)thienyl)-2,4-dialkoxybenzene]

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2024 Impact Factor : 0.6
  • Indexed in SCIE

This Article

  • 1999; 23(2): 299-304

    Published online Mar 25, 1999