高等学校化学学报

高等学校化学学报

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制备核-壳结构聚合物纳米微球和空心球的原位聚合方法的普适性研究

张幼维1,2, 赵炯心2, 江明1, 汪佳烨2   

    1. 复旦大学高分子科学系, 聚合物分子工程教育部重点实验室, 上海 200043;
    2. 东华大学高分子材料科学与工程学院, 纤维改性国家重点实验室, 上海 200051
  • 收稿日期:2005-12-22 修回日期:1900-01-01 出版日期:2006-09-10 发布日期:2006-09-10
  • 通讯作者: 张幼维

Generalization of in-|situ Polymerization New Method for Preparing Core-shell Polymeric Nanospheres and Hollow Spheres

ZHANG You-Wei1,2, ZHAO Jiong-Xin2, JIANG Ming1, WANG Jia-Ye2   

    1. Department of Macromolecular Science, Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Fudan University, Shanghai 200433, China;
    2. College of Materials Science and Engineering, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 200051, China
  • Received:2005-12-22 Revised:1900-01-01 Online:2006-09-10 Published:2006-09-10
  • Contact: ZHANG You-Wei

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被引次数

22

摘要： 采用原位聚合制备核-壳结构聚合物纳米微球和空心球的新方法, 利用甲基丙烯酸2-羟丙酯(HPMA)和乙酸乙烯酯(VAc)两种单体, 在类似的反应条件下, 成功地制备了以聚(ε-己内酯)(PCL)为核, 分别以交联PHPMA和PVAc为壳的纳米微球; 将微球的核酶解后, 分别得到了对应的交联PMAA空心球和交联PVA空心球. 结果表明, 原位聚合制备核-壳结构聚合物微球的新方法具有一定的普适性, 适用于单体可溶于水而生成的聚合物不溶于水的体系.

关键词: 核-壳结构, 聚合物纳米微球, 空心球, 制备, 普适性

Abstract: According to the new method for preparing core-shell nanospheres developed in our group, using two monomers of 2-hydroxypropyl methacrylate(HPMA) and vinyl acetate(VAc), two kinds of core-shell nanospheres with poly(ε-caprolactone)(PCL) as the core and crosslinked PHPMA or PVAc as the shell were successfully prepared under the similar conditions. After degrading the PCL cores of the obtained two nanospheres by lipase, the corresponding cross-linked poly(methyl acrylic acid) hollow spheres and cross-linked poly-(vinyl alcohol) hollow spheres were obtained. The results indicate that the new method which we proposed for preparing core-shell polymeric nanospheres via in-situ polymerization can be generalized to a certain extent, and it is suitable for the system in which the monomer is soluble in the water while its corresponding polymer is insoluble in the water.

Key words: Core-shell structure, Polymeric nanosphere, Hollow sphere, Preparation, Generalization

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