| 초록 |
We synthesized dye-containing (1,3,3-Trimethylindolinobenzopyrylospiran, TMLBPS and 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleimide, BTMTMI) and free-standing mesoporous organosilica films. The synthesis of the films with well-ordered cubic mesostructure (Im3m) were carried out using reactant mass ratio of 0.8 F108: 0.1 2M-HCl: 10 EtOH: 0.8 H2O: 7.8x10-3-1.95x10-2 dye: 1.77 BTSE ((C2H5O)3SiCH2CH2Si(OC2H5)3). Both samples of BTMTMI-PMO film and TMLBPS-PMO film have photochromic properties that show the decrease and increase of fluoresence intensity under visible and UV light, respectively. The as-synthesized BTMTMI-PMO film and TMLBPS-PMO film showed similar photochromic phenomena over about 4 h, while surfactant-extracted PMO films that contained dyes incorporated in the pores showed similar photochromic phenomena over about 55 min. |
