A method for producing a narrow molecular weight distribution polyalkylene glycol derivative having an amino group at an end allows for polymerization of ethylene oxide under mild conditions with suppressed occurrence of diol polymer impurities.
A method for producing a narrow molecular weight distribution polyalkylene glycol derivative having an amino group at an end includes at least the steps of polymerizing ethylene oxide by using a compound represented by the following general formula (2) and converting a polymer end to R3:
wherein R1 represents a linear, branched, or cyclic monovalent hydrocarbon group having 1 to 10 carbon atoms;
R2 represents a linear or branched divalent hydrocarbon group having 1 to 5 carbon atoms;
R3 represents a linear, branched, or cyclic monovalent hydrocarbon group having 1 to 20 carbon atoms;
M represents sodium or potassium;
m represents an integer of 1 to 5;
n represents an integer of 1 to 450; and
k represents an integer of 1 to 5.
一种生产末端带有
氨基的窄分子量分布聚亚烷基二醇衍
生物的方法,可在温和条件下聚合
环氧乙烷,并抑制二元醇聚合物杂质的产生。
生产末端带有
氨基的窄分子量分布聚亚烷基二醇衍
生物的方法至少包括以下步骤:使用下式(2)所代表的化合物聚合
环氧乙烷,并将聚合物末端转化为 R3:
其中 R1 代表具有 1 至 10 个碳原子的直链、支链或环状单价烃基;
R2 代表具有 1 至 5 个碳原子的直链或支链二价烃基
R3 代表具有 1 至 20 个碳原子的直链、支链或环状单价烃基;
M 代表
钠或
钾;
m 代表 1 至 5 的整数;
n 代表 1 至 450 的整数;以及
k 代表 1 至 5 的整数。