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We review recent work done on thermosensitive core–shell particles that consist of a solid core onto which a shell of crosslinked polymer as, e.g., poly(N-isopropylacrylamide) (PNIPA) has been grafted. Immersed in cold water the shell of these particles having dimensions of typically 150nm in diameter will swell. At ca. 32°C a volume transition takes place in the PNIPA-network and the shell shrinks...
We review recent work on the preparation, characterization and application of “smart” microgel particles. A general feature of all systems under consideration here is their ability to react to external stimuli as e.g. the pH or the temperature in the system. Special emphasis is laid on our recent research work on the thermosensitive core–shell microgel particles, which are composed of a PS core and...
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