Effect of the Addition of Polymers on Cracks in 3-Dimensional Assembly of Polystyrene Particles

概要

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Polystyrene particle assembly on glass substrates were prepared by lifting the substrates out of the particle dispersion at a constant speed. There were a lot of cracks in 1.5μm width in the colloid crystals, and the average domain size of the colloid crystals was a few micrometers. We investigated the effects of the pulling speed of the substrates, temperature, and particle concentration of the dispersion on the amounts of cracks, and found that the minimum amounts of the cracks were obtained at the disperse concentration of 2.6wt%, the pulling speed of 80nm/s and 60°C. Further, it was found that the addition of agar to the dispersion resulted in the decrease of the amounts of the cracks.
Japan Society of Colour Materialの論文