Characterization of colloidal crystal film of polystyrene particles at the air-suspension interface.

Abstract

An aqueous suspension of polystyrene (PS) particles gave rise to a distinct color when a water-soluble volatile solvent, such as methanol or acetone, was added and left to evaporate. The color was caused by the formation of a colloidal crystal film of PS particles at the air-suspension interface. The colloidal crystal formation was possibly induced by the… (More)
DOI: 10.1016/j.jcis.2009.04.015

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