새로운 가용성 저기변색 고분자 : Poly[1,4-bis(2-(3,4-ethylenedioxy)thienyl)-2,4-dialkoxybenzene]

이영관; 손용근; Reynolds JR

Polymer(Korea), Vol.23, No.2, 299-304, March, 1999

Export Citation

새로운 가용성 저기변색 고분자 : Poly[1,4-bis(2-(3,4-ethylenedioxy)thienyl)-2,4-dialkoxybenzene]

A Novel Soluble Electrochromic Polymer: Poly[1,4-bis(2-(3,4-ethylenedioxy)thienyl)-2,4-dialkoxybenzene]

이영관, 손용근, Reynolds JR

초록

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.

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.

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

[References]

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[1] Rehan M, Schluter A, Wegner G, Feast W, Polymer, 30, 1060 (1989)

[2] Sato M, Tanaka S, Kaeriyama K, J. Chem. Soc.-Chem. Commun., 873 (1986)

[3] Elsenbaumer R, Jen K, Miller G, Shacklette L, Synth. Met., 18, 277 (1989)

[4] Souto-Maior R, Wudl F, Synth. Met., C281, 28 (1989)

[5] Reynolds J, Katriaztky A, Balanda P, Musgrave R, Soloducho J, Sotzing G, Sankaran B, Am. Chem. Soc. Div. Polym. Mater. Sci. Eng., 72, 393 (1995)

[6] Reynolds J, Child A, Nayak K, Marynick D, Macromolecules, 24, 678 (1991)

[7] Ruiz J, Dharia J, Reynolds J, Buckley L, Macromolecules, 25, 849 (1992)

[8] Child AD, Sankaran B, Larmat F, Reynolds JR, Macromolecules, 28(19), 6571 (1995)

[9] Jonas F, Heywang G, Electrochim. Acta, 39(8-9), 1345 (1994)

[10] Yamamoto T, Bull. Chem. Soc. Jpn., 56, 1503 (1983)

[11] Roncali F, Ganier F, Garceau R, Lemaire M, J. Chem. Soc.-Chem. Commun., 1500 (1987)

[12] Dietrich M, Heinze J, Heywang G, Jonas F, J. Electroanal. Chem., 369(1-2), 87 (1994)

[13] Jonas F, Heywang G, Schraldtberg W, Heinze J, Dietrich M, U.S. Patent, 5,035,926 (1991)

[14] Heywang G, Jonas F, Adv. Mater., 4, 116 (1992)

[15] Sotzing G, Reynolds J, J. Chem. Soc.-Chem. Commun., 703 (1995)

[16] Cheng H, Elsenbaumer RL, J. Chem. Soc.-Chem. Commun., 1451 (1995)

[17] Irvin JA, Reynolds JR, Polymer, 39(11), 2339 (1998)

[18] Irvin JA, Lee Y, Reynolds JR, Am. Chem. Soc. Div. Polym. Chem., 38(2), 317 (1997)

[19] Sankaran B, Reynolds JR, Macromolecules, 30(9), 2582 (1997)