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A novel copolymer with fluorescence properties in mesoporous silica SBA-15 was prepared via a combination of surface-initiated reversible addition-fragmentation chain transfer(RAFT) polymerization and “click” chemistry.A sufficient amount of peroxide groups were introduced into mesoporous silica SBA-15 channel pores and were further used to initiate the RAFT polymerization of styrene and 4-vinylbenzyl azide,resulting in SBA-15 supported polystyrene-co-poly(4-vinylbenzyl azide) copolymer(PS-co-PVBA/SBA-15) hybrid material.The samples were characterized by Fourier transform infrared spectroscopy(FT-IR),transmission electron microscopy(TEM),thermogravimetry analysis(TGA),N_2 adsorption-desorption isotherms and X-ray diffraction(XRD),respectively.The results show that the styrene and 4-vinylbenzyl azide had copolymerized inside mesoporous silica SBA-15.Subsequently,Npropargyl-carbazole(PC) was connected to PS-co-PVBA/SBA-15 hybrid material via “click” reaction,resulting in PS-co-PVBC/SBA-15 with carbazole side groups hybrid material.The fluorescence spectrum is dominated by a broad band from 350 nm to 400 nm in narrow region and the maximum peak is 362 nm,indicating the characteristic absorption of the carbazole group of PS-co-PVBC/SBA-15 hybrid material.
A novel copolymer with fluorescence properties in mesoporous silica SBA-15 was prepared via a combination of surface-initiated reversible addition-fragmentation chain transfer (RAFT) polymerization and “click ” chemistry. A sufficient amount of peroxide groups were introduced into mesoporous silica SBA-15 channel pores and were further used for the RAFT polymerization of styrene and 4-vinylbenzyl azide, resulting in SBA-15 supported polystyrene-co-poly (4-vinylbenzyl azide) ) hybrid material.The samples were characterized by Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), thermogravimetry analysis (TGA), N 2 adsorption-desorption isotherms and X-ray diffraction (XRD) show that the styrene and 4-vinylbenzyl azide had copolymerized inside mesoporous silica SBA-15.Subsequently, Npropargyl-carbazole (PC) was connected to PS-co-PVBA / SBA- PS-co-PVBC / S BA-15 with carbazole side groups hybrid material. The fluorescence spectrum is dominated by a broad band from 350 nm to 400 nm in narrow region and the maximum peak is 362 nm, indicating the characteristic absorption of the carbazole group of PS-co-PVBC / SBA-15 hybrid material.