The present invention aims to provide a method for producing a polyrotaxane which enables industrially advantageous production of a polyrotaxane with a high inclusion rate.
The present invention relates to a method for producing a polyrotaxane that includes a cyclodextrin; a compound having a repeating structural unit represented by the following formula (1), and threading through a cavity of the cyclodextrin in a skewered manner to be included in the cyclodextrin; and capping groups individually placed at each end of a molecule of the compound having a repeating structural unit represented by the formula (1) to prevent the cyclodextrin from separating, the method comprising: a step 1 of mixing the compound having a repeating structural unit represented by the formula (1) and the cyclodextrin in an aqueous medium to prepare an aqueous dispersion of pseudopolyrotaxan particles in which the compound having a repeating structural unit represented by the formula (1) is included in a cavity of a cyclodextrin molecule in a skewered manner; and a step 2 of mixing a triazine compound represented by the formula (2), a compound having at least one tertiary amino group, the aqueous dispersion of pseudopolyrotaxane particles prepared in the step 1, and a capping agent to introduce capping groups individually at each end of a molecule of the compound having a repeating structural unit represented by the formula (1) in the pseudopolyrotaxane particles,
wherein, in the formula (2), R1 and R2 are each independently a C1-C4 alkyl group or a C6-C8 aryl group, and X represents a halogen atom.
本发明旨在提供一种生产聚游离基聚氧
乙烯醚的方法,该方法能够以工业优势生产出具有高包合率的聚游离基聚氧
乙烯醚。
本发明涉及一种生产聚龙沙烷的方法,该方法包括
环糊精;具有下式(1)所代表的重复结构单元的化合物,并以串联的方式穿过
环糊精的空腔以包含在
环糊精中;以及单独置于具有下式(1)所代表的重复结构单元的化合物分子两端的封端基团,以防止
环糊精分离,该方法包括:步骤 1 在
水性介质中混合具有式(1)所代表的重复结构单元的化合物和
环糊精,以制备假多聚糖颗粒的
水性分散液,其中具有式(1)所代表的重复结构单元的化合物以串联方式包含在
环糊精分子的空腔中;步骤 2:将式(2)代表的三嗪化合物、具有至少一个叔
氨基的化合物、步骤 1 中制备的假多聚氧
乙烯醚颗粒
水分散液和封端剂混合,以便在假多聚氧
乙烯醚颗粒中具有式(1)代表的重复结构单元的化合物分子的两端分别引入封端基团、
其中,在式 (2) 中,R1 和 R2 各自独立地为 C1-C4 烷基或 C6-C8 芳基,X 代表卤原子。