Article

Novel Synthesis and Properties of Smart Core-Shell Microgels

  1. Man Fai Leung1,
  2. Junmin Zhu1,
  3. Frank W. Harris2,
  4. Pei Li1

Article first published online: 20 JUN 2005

DOI: 10.1002/masy.200550817

Issue

Macromolecular Symposia

Macromolecular Symposia

Special Issue: Polymer Chemistry, Reactions and Processes

Volume 226, Issue 1, pages 177–186, May 2005

Additional Information

How to Cite

Leung, M. F., Zhu, J., Harris, F. W. and Li, P. (2005), Novel Synthesis and Properties of Smart Core-Shell Microgels. Macromol. Symp., 226: 177–186. doi: 10.1002/masy.200550817

Author Information

  1. 1

    Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China

  2. 2

    Maurice Morton Institute of Polymer Science, The University of Akron, OH, 44325-3909, USA

Publication History

  1. Issue published online: 20 JUN 2005
  2. Article first published online: 20 JUN 2005

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Keywords:

  • core-shell microgels;
  • graft copolymerization;
  • pH- and temperature-sensitive polymers

Abstract

A new method has been developed to prepare smart microgels that consist of well-defined temperature-sensitive cores with pH-sensitive shells. The microgels were obtained directly from aqueous graft copolymerization of N-isopropylacrylamide and N,N′-methylenebisacrylamide from water-soluble polymers containing amino groups such as poly(ethyleneimine) and chitosan. The gel diameters ranged from 300 to 400 nm with narrow size distribution. The unique core-shell nanostructures exhibited tuneable responses to pH and temperature.

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