高等学校化学学报

高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (1): 159.

• 研究简报 • 上一篇    下一篇

双亲水嵌段共聚物存在下特殊形貌的BaC2O4晶体合成

张冬柏, 齐利民, 马季铭, 程虎民   

  1. 北京大学化学与分子工程学院, 分子动态与稳定结构国家重点实验室, 北京 100871
  • 收稿日期:2002-12-24 出版日期:2004-01-24 发布日期:2004-01-24
  • 通讯作者: 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 E-mail:liminqi@chem.pku.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20003001,20233010);教育部优秀博士论文作者专项基金(批准号:200020);教育部博士学科点基金(批准号:2000000155)资助

Synthesis of BaC2O4 Crystals with Novel Morphologies in the Presence of a Double-hydrophilic Block Copolymer

ZHANG Dong-Bai, QI Li-Min, MA Ji-Ming, CHENG Hu-Min   

  1. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
  • Received:2002-12-24 Online:2004-01-24 Published:2004-01-24

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关键词: 双亲水嵌段共聚物, BaC2O4粒子, 形貌调控

Abstract: The crystallization of barium oxalate in the presence of a double-hydrophilic block copolymer poly(ethylene glycol)-block-poly(methacrylic acid) (PEG-b-PMAA) was investigated. Barium oxalate crystals with a complex form, such as fan-like aggregates consisting of rod-like BaC2O4·H2O crystals and spherical aggregates consisting of flake-like BaC2O4·3.5H2O crystals were readily produced in aqueous solutions of PEG-b-PMMA. This result may provide an effective method for controlling the morphology and polymorph of inorganic crystals.

Key words: Double-hydrophilic block copolymer, BaC2O4 particles, Morphological control

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