期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 25, 期 14, 页码 1298-1302出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200400193
关键词
atom transfer radical polymerization (ATRP); polymer brushes; stimuli-sensitive polymers
A diblock copolymer brush consisting of poly-(methyl acrylate)-block-poly(pentafluoropropyl acrylate). (Si/SiO2//PMA-b-PPFA) was synthesized on a porous silica substrate. The brush was exposed to selective solvents, as well as thermal treatments, to induce a surface rearrangement. The rearrangement resulted in the selective loss or creation of an ultrahydrophobic layer by location of the fluoropolymer segment. This work demonstrates that surface rearrangement observed on flat surfaces can be transferred to porous substrates.
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