Sol-Gel법에 의해 Spiropyran을 함유한 광 변색 코팅 막의 제조

정상혁; 조경인; 송기창; Sang Hyeok Jeong; Kyung In Cho; Ki Chang Song

Korean Chemical Engineering Research, Vol.46, No.1, 112-117, February, 2008

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Sol-Gel법에 의해 Spiropyran을 함유한 광 변색 코팅 막의 제조

Preparation of Photochromic Coating Films Containing Spiropyran by Sol-Gel Method

정상혁, 조경인, 송기창 ^†

건양대학교 화공생명학과, 302-711 충남 논산시 내동 26

Sang Hyeok Jeong, Kyung In Cho, and Ki Chang Song^†

Department of Chemical and Biochemical Engineering, Konyang University, 26 Nae-dong, Nonsan, Chungnam 320-711, Korea

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초록

1:1로 몰 비가 조절된 glycidoxypropyl trimethoxysilane(GPTMS)과 methyl triethoxysilane(MTES)을 출발물질로 하여 sol-gel법에 의해 유-무기 혼성 용액을 제조하였다. 이 용액에 spiropyran계 광 변색 염료를 ethylacetate(EA)에 용해 시킨 용액을 혼합하여 광 변색 코팅 용액을 제조하였다. 그 후 기재인 polycarbonate 시트에 스핀 코팅 시키고 100 ℃ 에서 2 h 동안 열 경화 시켜 광 변색 코팅 막을 제조하였다. 코팅 막은 UV 광을 조사함에 의해 가역적인 색변화를 보여주었다. 이때 코팅 막의 소색속도는 코팅 용액 중의 EA의 첨가량이 증가됨에 따라 증가하였다.

Organic-inorganic hybrid solutions were prepared via sol-gel method using glycidoxypropyl trimethoxysilane (GPTMS) and methyl triethoxysilane (MTES) as starting precursors at a molar ratio of 1:1. The photochromic coating solutions were prepared by mixing the solutions of photochromic dye (spiropyran) dissolved in ethylacetate (EA) with the organic-inorganic hybrid solutions. Photochromic films were prepared on polycarbonate substrate by spin coating and cured for 2 h at 100 ℃. The resulting films exhibited a reversible color change upon irradiation with UV light. The photochromic properties of the films showed that the color-fading speed increases with increasing the EA content in the coating solutions.

Keywords:Photochromic;Sol-Gel;Spiropyran;Glycidoxypropyl Trimethoxysilane;Methyl Triethoxysilane;Organic-Inorganic Hybrid

[References]

Crano JC, Guglielmetti RJ, Organic Photochromic and Thermochromic Compounds, Plenum, NY (1999)
Mennig M, Fries K, Lindenstruth M, Schmidt H, Thin Solid Films, 351(1-2), 230 (1999)
Tagaya H, Nagaoka T, Kuwahara T, Karasu M, Kadokawa J, Chiba K, Microporous Mater., 21, 395 (1998)
Kinashi K, Harada Y, Ueda Y, Thin Solid Films, in press (2007)
Brinker CJ, Scherer GW, Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing, Academic Press, Boston (1990)
Hou L, Schmidt H, Hoffmann B, Mennig M, J. Sol-Gel Sci. Techn., 8, 927 (1997)
ASTM D 3359, “Standard Test Methods for Measuring Adhesion by Tape Test,” ASTM International., 927-929 (1997)
Guglielmetti R, Photochromism, Elsevier Sci. Amsterdam (1990)
Zayat M, Levy D, J. Mater. Chem., 13, 727 (2003)
Hou LS, Schmidt H, J. Mater. Sci., 31(13), 3427 (1996)

[Referenced By]

[Related Articles]

[1] Crano JC, Guglielmetti RJ, Organic Photochromic and Thermochromic Compounds, Plenum, NY (1999)

[2] Mennig M, Fries K, Lindenstruth M, Schmidt H, Thin Solid Films, 351(1-2), 230 (1999)

[3] Tagaya H, Nagaoka T, Kuwahara T, Karasu M, Kadokawa J, Chiba K, Microporous Mater., 21, 395 (1998)

[4] Kinashi K, Harada Y, Ueda Y, Thin Solid Films, in press (2007)

[5] Brinker CJ, Scherer GW, Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing, Academic Press, Boston (1990)

[6] Hou L, Schmidt H, Hoffmann B, Mennig M, J. Sol-Gel Sci. Techn., 8, 927 (1997)

[7] ASTM D 3359, “Standard Test Methods for Measuring Adhesion by Tape Test,” ASTM International., 927-929 (1997)

[8] Guglielmetti R, Photochromism, Elsevier Sci. Amsterdam (1990)

[9] Zayat M, Levy D, J. Mater. Chem., 13, 727 (2003)

[10] Hou LS, Schmidt H, J. Mater. Sci., 31(13), 3427 (1996)