Article

One-stage synthesis of narrowly dispersed polymeric core-shell microspheres

  1. Fei Wen,
  2. Wangqing Zhang*,
  3. Peiwen Zheng,
  4. Xu Zhang,
  5. Xinlin Yang,
  6. Yao Wang,
  7. Xiaowei Jiang,
  8. Guanwei Wei,
  9. Linqi Shi

Article first published online: 28 DEC 2007

DOI: 10.1002/pola.22460

Issue

Journal of Polymer Science Part A: Polymer Chemistry

Journal of Polymer Science Part A: Polymer Chemistry

Volume 46, Issue 4, pages 1192–1202, 15 February 2008

Additional Information

How to Cite

Wen, F., Zhang, W., Zheng, P., Zhang, X., Yang, X., Wang, Y., Jiang, X., Wei, G. and Shi, L. (2008), One-stage synthesis of narrowly dispersed polymeric core-shell microspheres. J. Polym. Sci. A Polym. Chem., 46: 1192–1202. doi: 10.1002/pola.22460

Author Information

  1. Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China

*Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China

Publication History

  1. Issue published online: 2 JAN 2008
  2. Article first published online: 28 DEC 2007
  3. Manuscript Accepted: 7 OCT 2007
  4. Manuscript Received: 8 MAR 2007

Funded by

  • National Science Foundation of China. Grant Number: 20504016

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Keywords:

  • copolymer;
  • core-shell polymer;
  • emulsion polymerization;
  • microspheres;
  • oligomer

Abstract

A method of one-stage soap-free emulsion polymerization to synthesize narrowly dispersed core-shell microspheres is proposed. Following this method, core-shell microspheres of poly(styrene-co-4-vinylpyridine), poly(styrene-co-methyl acrylic acid), and poly[styrene-co-2-(acetoacetoxy)ethyl methacrylate-co-methyl acrylic acid] are synthesized by one-stage soap-free emulsion polymerization of a mixture of one or two hydrophobic monomers and a suitable hydrophilic monomer in water. The effect of the molar ratio of the hydrophobic monomer to the hydrophilic one on the size, the core thickness, and the shell thickness of the core-shell microspheres is discussed. The molar ratio of the hydrophobic and hydrophilic monomers and the hydrophilicity of the resultant oligomers of the hydrophilic monomer are optimized to synthesize narrowly dispersed core-shell microspheres. A possible mechanism of one-stage soap-free emulsion polymerization to synthesize core-shell microspheres is suggested and coagglutination of the oligomers of the hydrophilic monomers on the hydrophobic core is considered to be the key to form core-shell microspheres. © 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 1192–1202, 2008

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