高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (6): 984.

• 研究快报 • 上一篇    下一篇

聚合物纳米粒子的制备及其新型物理水凝胶结构的AFM和SEM研究

赵艺强1, 明伟华1, 胡建华1, 府寿宽1, 李民乾2, 陈圣福2, 熊启华2   

  1. 1. 复旦大学高分子科学系, 聚合物分子工程开放实验室, 上海 200433;
    2. 中国科学院上海原子核所, 上海 201800
  • 收稿日期:1999-03-08 出版日期:1999-06-24 发布日期:1999-06-24
  • 通讯作者: 府寿宽
  • 作者简介:赵艺强,男,26岁,硕士研究生.
  • 基金资助:

    国家自然科学基金(批准号:29874010);教育部博士点基金

Preparation of Polymeric Nanoparticles and Observa tion on the Structure of Novel Nanosized Physical Hydrogels by AFM and SEM Methods

ZHAO Yi-Qiang1, MING Wei-Hua1, HU Jian-Hua1, FU Shou-Kuan1, LI Min-Qian2, CHEN Sheng-Fu2, XIONG Qi-Hua2   

  1. 1. Department of Macromolecular Science, the Laboratory of Molecular Engineering of Polymer, Fudan University, Shanghai, 200433;
    2. Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai, 201800
  • Received:1999-03-08 Online:1999-06-24 Published:1999-06-24

摘要: 凝胶材料是生物系统的重要组成物质,在生物模拟、仿生等方面具有重大意义.最近凝胶方面的研究日益受到关注[1,2],高分子凝胶体系的研究也得到深入开展[3,4].在智能水凝胶、凝胶特性基础研究和医用凝胶材料等领域已取得了较大进展.

关键词: 纳米粒子, 物理水凝胶, 原子力显微镜, 扫描电镜

Abstract: A series of novel nano-sized physical hydrogels based on the hydrophobic polymeric nanoparticles have been prepared via a modified microemu lsion polymerization, which may contain as much as above 90% water with nanosized particle diameter of about 20nm. The specific structures of the prepared hydrogels were observed successfully by A tomicForce Microscope (AFM) and Scanning Electron Microscope (SEM). The micrograph s showed that the polymeric nanoparticles and their aggregated clusters were connected to form the networks of hydrogels, in which water including free water and bound water were embedded. The formation mechanism of the hydrogel has also been discussed in th is paper. Keywords N anoparticle, Physical hydrogel.

Key words: Nanoparticle, Physical hydrogel, Atomic Force Microscope, Scanning Electron Microscope

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