首页>
外国专利>
BAB-type tri-block copolymer comprising polylactic acid (A) and polyethylene glycol (B), method for producing same, and drug delivery system using same
BAB-type tri-block copolymer comprising polylactic acid (A) and polyethylene glycol (B), method for producing same, and drug delivery system using same
展开▼
机译:包含聚乳酸(A)和聚乙二醇(B)的BAB型三嵌段共聚物,其制备方法和使用其的药物递送系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
Provided are a BAB-type tri-block copolymer including a polylactic acid (A) that is a hydrophobic block and polyethylene glycol (B) that is a hydrophilic block, a method of preparing the BAB-type tri-block copolymer including synthesizing a polylactic acid (A)-polyethylene glycol (B) di-block copolymer by a ring opening polymerization of a lactic acid monomer using a hydroxyl group of polyethylene glycol (B) as a polymerization initiator; and synthesizing a BAB-type tri-block copolymer by reacting the AB-type di-block copolymer with polyethylene glycol (B) including at least one carboxyl group at one or more terminals thereof in the presence of a coupling agent and a catalyst, and a drug delivery system using the BAB-type tri-block copolymer.
展开▼