Abstract
AbstractThe crystallization of poly(vinyl alcohol) (PVA) from an aqueous solution was carried out under a steady‐state flow. The fibrillar crystals occur just under the surface of the solution after a few seconds of stirring and they grow gradually. The fibrillar crystals are produced even from a 0,05% solution. The process of crystallization of PVA under steady‐state flow was classified in seven types. The rate of precipitation increases with decreasing distance between the surface of a cylindrical stirrer and the wall of a test tube or with the diameter of the stirrer.
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