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Journal of Sol-Gel Science and Technology

, Volume 58, Issue 3, pp 651–655 | Cite as

Fabrication of teardrop-shaped silica particles in polyelectrolyte diluted solution through in situ sol–gel process

  • LinYong Song
  • ChunLei Lin
  • Lan Wang
  • HaiLin Sheng
  • YiFeng Zhou
  • WangYan Nie
Original Paper

Abstract

A new strategy to fabricate teardrop-shaped silica particles is presented. Monodispersed teardrop-like silica particles were obtained through basic catalyzed sol–gel process of tetraethoxysilane by employed sodium polyacrylate as soft template. Increasing the salt concentration of solution, the morphology of silica particles can transform from teardrop-like to hollow structures, and finally formed solid particles. The morphologies of silica particles are characterized by TEM and SEM. Our finding can be scaled up for large-scale synthesis of unusual structures of inorganic or composite materials in a predictable manner. This study is expected to provide further understanding of the role of polyelectrolyte in the synthesis of inorganic materials towards design of unusual architectures and functional materials.

Keywords

Polyelectrolyte Teardrop-shaped Silica Sol–gel Nanoparticles Viscoelasticity Shearing 

Notes

Acknowledgments

This work was financed by the 211 Project of Anhui University (2009QN007A), Scientific Research Fund of Anhui Provincial Education Department (KJ2009A51) and the Startup Foundation for Doctors of Anhui University. And we thank Dr. Wang Mozhen for the helpful discussion on the formation of anisotropic particles.

Supplementary material

10971_2011_2440_MOESM1_ESM.docx (900 kb)
Supplementary material 1 (DOCX 900 kb)

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • LinYong Song
    • 1
  • ChunLei Lin
    • 1
  • Lan Wang
    • 1
  • HaiLin Sheng
    • 1
  • YiFeng Zhou
    • 1
  • WangYan Nie
    • 1
  1. 1.The Key Laboratory of Environment-Friendly Polymer Materials of Anhui Province, College of Chemistry & Chemical EngineeringAnhui UniversityHefeiPeople’s Republic of China

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