高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (8): 1595.

• 研究快报 • 上一篇    下一篇

醇-水混合溶剂中双亲水嵌段共聚物对CaCO3粒子形貌的调控

齐利民, 李洁, 马季铭   

  1. 北京大学化学与分子工程学院, 北京 100871
  • 收稿日期:2002-03-27 出版日期:2002-08-24 发布日期:2002-08-24
  • 通讯作者: liminqi@chem.pku.edu.cn
  • 作者简介:齐利民(1969年出生),男,博士,副教授,从事胶体与界面化学研究.E-mail:liminqi@chem.pku.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20003001);教育部全国优秀博士论文作者专项资金(批准号:200020);留学回国启动基金;博士学科点基金资助

Morphological Control of CaCO3-Particles by a Double-hydrophilic Block Copolymer in Mixed Alcohol-water Solvents

QI Li-Min, LI Jie, MA Ji-Ming   

  1. College of Chemistry and Molecular Engeneering, Peking University, Beijing 100871, China
  • Received:2002-03-27 Online:2002-08-24 Published:2002-08-24

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关键词: 双亲水嵌段共聚物, CaCO3粒子, 形貌调控, 混合溶剂, 生物模拟合成

Abstract: The crystallization of calcite from mixed alcohol water solvents in the presence of a double hydrophilic-block-copolymer poly(ethylene glycol) block poly(methacrylic acid)(PEG-b-PMAA) has been investigated. It was revealed that with increasing the volume fractions of ethanol or isopropanol, the morphology of the CaCO3 particles generally varies from peanuts through rods to spheres in the presence of the polymer. Specifically, uniform rounded calcite rods, which are about 2 μm in length with an aspect ratio of 2.6, were obtained in the isopropanol solution with volume fraction 50%.

Key words: Double hydrophilic block copolymer, CaCO3 particles, Morphological control, Mixed solvents, Biomimetic synthesis

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