2012•Chemical engineerRequires access

Preparation and application in preparation of 3DOM-SiO_2 material of polystyrene colloidal crystal

Huang Xiao-minga

Abstract

Polystyrene colloidal crystal with the particle size of 255nm has been prepared by modified method,and the effect of emulsifier dosage on ordered polystyrene assembling have been stated.PS as template,a 3DOM-SiO2 was prepared by colloidal crystal templating method,in addition,the 3DOM-SiO2 with a shrinkage ratio of approximately 10% was observed with filed scanning electron microscopy(FE-SEM) and transmission electron microscopy(TEM).Moreover,the macroporous SiO2,with a large ordered area,uniform and smooth pore wall,and face contered cubic structure,is typical three-dimensional ordered macroporous material.

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Key concepts: Polystyrene, Colloidal crystal, Materials science, Transmission electron microscopy, Scanning electron microscope, Colloid, Chemical engineering, Crystal (programming language)