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.
Original language | English |
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Pages (from-to) | 177-185 |
Number of pages | 9 |
Journal | Macromolecular Symposia |
Volume | 226 |
DOIs | |
Publication status | Published - 1 May 2005 |
Keywords
- Core-shell microgels
- Graft copolymerization
- pH- and temperature-sensitive polymers
ASJC Scopus subject areas
- Materials Chemistry
- Polymers and Plastics