화학공학소재연구정보센터
Journal of Crystal Growth, Vol.297, No.1, 223-227, 2006
Assembly of polystyrene colloidal crystal templates by a dip-drawing method
Separately dispersed polystyrene spheres (PS) were synthesized by an emulsifier-free emulsion polymerization technique and the PS colloidal crystal templates were assembled orderly on clean glass substrates using a dip-drawing method from the emulsion of PS. The formation process and the close-packed fashion of the PS colloidal crystal templates were discussed. Simultaneously, the surface morphology of the templates was also analyzed. The results showed that the close-packed fashion of PS array templates was face-centered cubic structure, which had been proved by the Bragg diffraction formula. The morphologies of PS colloidal crystal templates were mainly dependent on the drawing rate and PS concentration. (c) 2006 Elsevier B.V. All rights reserved.