Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 28, Issue 7, Pages 828-833Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200600796
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Poly(2-hydroxyethyl methacrylate)-block-poly(N-isopropylacrylamide) (PHEMA-b-PNIPAM) was prepared by controlled surface -initiated ATRP from silicon substrates, and the resulting block copolymers were successfully converted into the corresponding PSEMA-b-PNIPAM by esterification of the hydroxy groups on the PHEMA block using excess of succinic anhydride. The PSEMA-b-PNIPAM block copolymer brushes respond to both temperature and pH stimuli. The double -responsive behavior of the block copolymer brushes in solution was investigated by height imaging and force-distance measurements of AFM. The results clearly show the responsive behavior of the smart block copolymer brushes.
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