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一种聚己内酯-聚乙二醇-聚己内酯磁性共聚物微球的制备

Preparation of a New Kind of Polycaprolactone-Poly(Ethylene Glycol)-Polycaprolactone Magnetic Polymeric Microspheres

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【Author】 GOU Ma-ling1,2,ZHANG Yang-de3,WANG Hui4,XIE Zhen5,WANG Ji-wei3 PAN Yi-feng3,XIE Xi-hui5,TU Ming-jing1,QIAN Zhi-yong2 (1.College of Material Science and Engineering,Sichuan University,Chengdu,610065,China;2.State Key Laboratory of Biotherapy,West China Hospital,West China Medical School,Sichuan University,Chengdu,610041,China; 3.National Key Laboratory of Nanobiological Technology,Central South University,Changsha 410008,China;4.Analytical and Testing Center, Sichuan University,Chengdu 610065,China;5.Jiangyan Hospital of Traditional Chinese Medicine,Jiangyan 225500,China)

【机构】四川大学材料学院；中南大学卫生部纳米生物技术重点实验室；四川大学分析测试中心；江苏省姜堰市中医院；四川大学生物治疗国家重点实验室四川成都610065；四川大学生物治疗国家重点实验室；四川成都； 610041；湖南长沙410008；四川成都610065；江苏姜堰225500；四川成都610041；

【摘要】通过开环聚合的方法合成了聚己内酯-聚乙二醇-聚己内酯共聚物,以聚乙二醇为致孔剂,采用溶剂扩散法制备磁性聚合物多孔微球。结果表明微球为多孔结构,孔与孔相连,同时微球具有超顺磁性。更多还原

【Abstract】 In this paper,poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) triblock copolymer was synthesized by ring-opening polymerization method.Solvent diffusion method was employed to prepare porous magnetic polymeric microspheres,while PEG was used as pore-forming reagent.SEM and VSM were used to characterize the obtained magnetic microspheres.Conclusion could be made that microspheres with magnetic responsive properties are porous,while pores adhere to each other.The prepared microspheres have great potential application in biomedicine.更多还原

【关键词】磁流体；聚己内酯-聚乙二醇-聚己内酯共聚物；聚合物微球；溶剂扩散；多孔材料；
【Key words】 magnetic fluid； poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone)； polymer microspheres； solvent diffusion； porous materials；

【基金】四川省科技攻关项目资助(06(05SG022-021-02))

【文献出处】高分子材料科学与工程 ,Polymer Materials Science & Engineering , 编辑部邮箱 ,2007年04期

【分类号】TB324;TB383.4
【被引频次】17
【下载频次】759

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