Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 26, Issue 24, Pages 1913-1917Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200500647
Keywords
gels; stimuli-sensitive polymers; surfactants; swelling; poly(N-isopropylacrylamide)
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Here we show a new design concept of functional polymer gel for rapid deswelling by utilizing micelle-forming ability of surfactant. A thermosensitive polymer bearing a surfactant was synthesized by using N-isopropylacrylamide and a reactive surfactant. Above lower critical Solution temperature, the grafted surfactant acts to form micelle structure. In the shrinking process, the inside water is rapidly squeezed out through hydrophilic channel between the formed micelles and consequently the gel shrinks quickly.
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