PROBLEM TO BE SOLVED: To provide a polyamideamine dendron-bearing lipid which exhibits the hydrophilicity changing according to its temperature.SOLUTION: This polyamideamine dendron-bearing lipid containing a lower acyl group in which &ge1 amino groups in the polyamideamine dendron-bearing lipid is replaced by a 3-6C lower acyl group is provided, and the method for producing the same is also provided.COPYRIGHT: (C)2009,JPO&INPIT【課題】温度により親水性が変化するポリアミドアミンデンドロン脂質を提供する。【解決手段】ポリアミドアミンデンドロン脂質中の1以上のアミノ基が、炭素数3~6の低級アシル基で置換されてなる、低級アシル基含有ポリアミドアミンデンドロン脂質及びその製造方法。【選択図】図1