Crystal nucleating agent using the method of producing polylactic acid particles, and polylactic acid particles, moldings, and surface modifier

摘要

In accordance with the present invention, a transmission apparatus having a liquid containing portion of the two that is defined by the permeable membrane in diameter with pores of 0.5nm or 1000nm or less, the liquid containing portion of the one, the structure derived from L- lactic The container holds a polymer compound solution obtained by dissolving the first solvent and a polymer containing structural units derived from D- lactic acid units and the liquid containing portion of the other, the first is a poor solvent for the polymer compound The 10000mL / (min · cm ²⁾ less than ¹⁰ -3 mL / (min · cm ²⁾ more than 1 ×, and the preparation step to accommodate the two solvents, the polymer compound solution was stored in the liquid storage portion of the one By and transmits the permeable membrane at a flow rate of, the production method of the polylactic acid particles having a transmission step of contacting the said second solvent the polymer compound solution is provided.