A star polymer of formula O[D1]-([X]-A(D2)-[Z]-[D3])n where O is a core; A is a polymer arm that comprises reactive monomers, hydrophilic monomers and/or charged monomers and is attached to the core; X is a linker molecule between the core and the polymer arm; Z is a linker molecule between the end of the polymer arm and D3; D1 is a drug molecule linked to the core; D2 is a drug molecule linked to reactive monomers distributed along the polymer arm; D3 is a drug molecule linked to the ends of the polymer arms; n is an integer number; [ ] denotes that the group is optional; and D2 is linked to the reactive monomers distributed along the polymer arm at a density of between 1 mol% and 80 mol%.
一种星形聚合物,
化学式为O[D1]-([X]-A(D2)-[Z]-[D3])n,其中O为核心;A为聚合物臂,包括反应性单体、亲
水性单体和/或带电单体,并连接到核心;X为连接核心和聚合物臂的连接分子;Z为连接聚合物臂末端和D3的连接分子;D1为连接到核心的药物分子;D2为连接到沿着聚合物臂分布的反应性单体的药物分子;D3为连接到聚合物臂末端的药物分子;n为整数;[ ]表示该组是可选的;D2与沿聚合物臂分布的反应性单体以1 mol%至80 mol%的密度连接。