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Synthesis and characterization of three-dimensionally ordered macroporous polystyrene

Yi Gui-Yun Dong Peng Wang Xiao-Dong Liu Li-Xia Chen Sheng-Li

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Synthesis and characterization of three-dimensionally ordered macroporous polystyrene

Yi Gui-Yun, Dong Peng, Wang Xiao-Dong, Liu Li-Xia, Chen Sheng-Li
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  • Three-dimensionally ordered macroporous polystyrene was successfully synthesized through using silica sphere colloid crystals as template and in-situ polymeriza tion of styrene inside the template. The silica spheres with a diameter of 330 n m and 2.75% relative standard deviation were prepared by seeding method. For th e purpose of improving the wetting ability between the silica particles and styr ene, the hydrophilic surface of silica particles was switched to hydrophobic by 3-Aminopropyl-triethoxysilan (APS). Three-dimensionally ordered colloidal crystal was prepared by assembling the modified particles through a vertical depositio n technique at 30℃ for 48h. Styrene monomer was filled into the void of the tem plate and the polymerization of the styrene was carried out at 60℃ for 6h, being used (put the initiator in here) as initiator. The three-dimensionally ordered macroporous polystyrene was thus obtained by removing the silica template from polystyrene materials with 04% HF. The macroporous polystyrene shows a beautif ul iridescence in reflected light, which resulted from Bragg diffraction. SEM im ages indicated that the pores with a diameter of about 210nm were arrayed period ically and connected with each other.
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  • Abstract views:  6814
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Publishing process
  • Received Date:  21 November 2003
  • Accepted Date:  10 March 2004
  • Published Online:  05 May 2004

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