| 초록 |
In the present study, we describe the synthesis of mesoporous organosilicas from the co-condensation of TEOS and 1,2-bis(trimethoxysilyl)ethane (BTMSE) by using PEO-containing triblock copolymer templates such as F127 (EO106PO70EO106; BASF) and poly-(ethylene oxide)-poly(DL-lactic acid-co-glycolic acid)-poly(ethylene oxide) (LGE76, EO43(L23G6)EO43, PEO-PLGA-PEO). More hydrophobic PLGA block, compared with the PPO block in the PEO-PPO-PEO block templates, is chosen to provide more contrast between hydrophilicity and hydrophobicity of a block template such that the organosilicate is confined in the aqueous matrix phase.12 We also report the hydrothermal stability of cylindrical mesoporous organosilicas (MOL-1) from 1,2-bis(triethoxysilyl)ethane (BTESE) using a LGE54 (EO16(L23G6)EO16, PEO-PLGA-PEO) template. |
